Highway 407 East Phase 1 DESIGN AND CONSTRUCTION REPORT #6

Transcription

1 DESIGN AND CONSTRUCTION REPORT #6 All Segments Community Value Plan, Landscaping and Ecological Restoration, and Illumination Segment B2 Culvert and Stream Realignment Segment A1 Maintenance Facility Segments A3 and B1 Noise Barrier Walls DRRCGPR006_00 February 2015

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3 Design and Construction Report #6 1 of DRRCGPR Public Record Viewing Locations (MOE file number EA0207) This document can be electronically accessed at: 38Thttp:// Copies can also be found at the public viewing locations listed below: City of Pickering: Clerks Department 1 The Esplanade, Pickering Tel: Town of Ajax: Clerk s Department 65 Harwood Ave. S., Ajax Tel: Town of Whitby: Clerk s Department 575 Rossland Rd. E., Whitby Tel: City of Oshawa: Clerk s Department 50 Centre St. S., Oshawa Tel: Regional Municipality of Durham: Clerk s Department 605 Rossland Rd. E., Whitby Tel: Ministry of Transportation: Major Project Office, Building "D", 7th Floor 1201 Wilson Ave., Downsview Tel: Pickering Public Library Main Branch 1 The Esplanade, Pickering Tel: Ajax Public Library Main Branch 55 Harwood Ave. S., Ajax Tel: Whitby Public Library Main Branch 405 Dundas St. W., Whitby Tel: Oshawa Public Library Main Branch 65 Bagot St., Oshawa Tel: East Development Group: 407 Project Office 400 Dundas St. E., Unit 2, Whitby Tel: Ministry of the Environment and Climate Change: Environmental Approvals Branch 2. St. Clair Ave. W., Floor 12A, Toronto Tel: En français: Ce document hautement spécialisé n'est disponible qu'en anglais en vertu du règlement 411/97, qui en exempte l'application de la Loi sur les services en français. Pour de l'aide en français, veuillez communiquer avec le ministère des Transports, Bureau des services en français au: ou

4 Design and Construction Report #6 2 of DRRCGPR List of Acronyms 407ECGP 407 East Construction General Partnership 407EDG 407 East Development Group BMP Best Management Practices CEAA Canadian Environmental Assessment Act CLOCA Central Lake Ontario Conservation Authority CP Rail Canadian Pacific Railway CVP Community Value Plan DCR Design and Construction Report DFO Fisheries and Oceans Canada DSS Designated Substance Surveys EA Environmental Assessment EAC 407 East Advisory Committee Enbridge Enbridge Gas Distribution/Enbridge Pipeline Inc. ESA Endangered Species Act, 2007 ESCP Erosion and Sediment Control Plan HADD Harmful Alteration, Disruption or Destruction (of Fish and/or Fish Habitat) IO Infrastructure Ontario MNRF Ministry of Natural Resources and Forestry MOECC Ontario Ministry of the Environment and Climate Change MTAG Municipal Technical Advisory Group MTCS Ministry of Tourism, Culture and Sport MTO Ontario Ministry of Transportation NPC Noise Pollution Control OEAA Ontario Environmental Assessment Act PIC Public Information Centre Project Project RAG Regulatory Agencies Group ROW RightofWay SAR Species at Risk SWM Stormwater Management TRCA Toronto and Region Conservation Authority WDL West Durham Link

5 Design and Construction Report #6 3 of DRRCGPR TABLE OF CONTENTS P.1. PROJECT BACKGROUND AND OVERVIEW... 6 P East Transportation Corridor... 7 P.1.2. Environmental Assessments... 7 P.1.3. Phased Implementation... 7 P.1.4. Project Delivery P.1.5. Current Design Build P.2. PROJECT ORGANIZATION & IMPLEMENTATION P East Development Group P East Construction General Partnership P.3. ENVIRONMENTAL ASSESSMENT PROCESS P.3.1. Ontario Environmental Assessment Act P Ministry of Transportation Class Environmental Assessment P.3.2. Canadian Environmental Assessment Act P.3.3. Other Provincial/Federal Approvals P.4 PURPOSE OF DESIGN AND CONSTRUCTION REPORTS (DCR) P.5 OVERALL CONSULTATION PLAN P.5.1. Engagement of Stakeholders P.6. PLAN FOR HIGHWAY DESIGN, BUILD AND DCR SUBMISSION OVERVIEW OF PROPOSED WORK ACTIVITIES CONSULTATION PROCESS Government Agencies and Municipalities Municipal Technical Advisory Group East Advisory Committee Regulatory Agency Group Utilities Coordination Public and Stakeholder Participation Notifications Public Information Centre # First Nations Consultation Public and Stakeholder Input to Detail Design DETAILED DESCRIPTION OF THE RECOMMENDED DESIGN Community Value Plan Overview of the CVP Process Community Identified Values and CVP Themes Detail Design of CVP... 52

6 Design and Construction Report #6 4 of DRRCGPR Landscape Plan and CVP Design Elements Ecological Restoration Approach CVP and Landscape Design Components Summary of Community Interests/Concerns and CVP and Landscape Design Elements Vegetation Restoration Plans Vegetation Removals and Compensation for Habitat Loss Restoration Templates and Vegetation Site Restoration Plans Illumination Structures and Stream Realignments Lynde Creek Tributary A Culvert (Structure W17) and Stream Realignment Design Modifications to Structures and Stream Realignments in Past DCRs Maintenance Facility Noise Barrier Walls Highway 401 East of WDL Brooklin Area Stormwater Management Ponds Design Modifications to Stormwater Management Ponds in Past DCR s Construction Staging, Traffic Management, Road Closures and Detours Rossland Road ENVIRONMENTAL IMPACTS, PROPOSED MITIGATION AND COMMITMENTS Natural Environment Fish and Fish Habitat Groundwater Vegetation Wildlife and Wildlife Habitat Surface Water Protection/Erosion and Sediment Control SocioEconomic Environment Land Use Traffic Staging and Management Noise Air Quality Property Contamination and Waste Materials Management Cultural Environment Archaeological Resources Built Heritage Resources and Cultural Landscapes

7 38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38 T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T3 8T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T38T Project Name Design and Construction Report #6 5 of DRRCGPR Summary of Environmental Effects, Proposed Mitigation and Commitments to Further Work PROJECT MONITORING EDG Obligations Ontario Ministry of Transportation Obligations Environmental Assessment Compliance Monitoring LIST OF TABLES Table P.1: Other Permits and Approvals Required Prior to Construction Table P.2: Overall Plan for Design and Construction Reports and PICs Table 2.1: Summary of Public and Stakeholder Comments from PIC # LIST OF FIGURES Figure P1: and Figure P2: 407 East Development Group Figure P3: Overview of EA Process Figure P4: Key Plan Figure 11: Location of Select Design Elements in DCR # Figure 31: Local Heritage Commemorative Sites Figure 32: Location of SWM Ponds Appendix A Appendix B Appendix C APPENDICES (VOLUME 1) Design Drawings Appendix A1 Landscape Plan Design Drawings Appendix A2 Structural and Stream Realignment Design Drawings Appendix A3 Maintenance Facility Design Drawings Appendix A4 Stormwater Management Ponds Consultation Materials Appendix B1 Notice of Public Information Centre Appendix B2 Public Information Centre Display Boards Appendix B3 Submitted Comment Forms Appendix B4 Notice of Submission Summary of Environmental Effects, Proposed Mitigation and Commitments to Further Work Appendix C1 Summary of EA Commitments and Compliance Monitoring Appendix C2 EA Commitments and Assurances Appendix C3 Environmental Effects Monitoring Commitments Appendix C4 MOE Notice of Approval Conditions

8 Design and Construction Report #6 6 of DRRCGPR PREFACE P.1. PROJECT BACKGROUND AND OVERVIEW In 2007 the Ontario Ministry of Transportation (MTO) in consultation with the Region of Durham, and surrounding municipalities initiated the 407 East Individual Environmental Assessment and Preliminary Design Study (August, 2009) ( 407 East Transportation Corridor EA ) under the Ontario Environmental Assessment Act. This study was intended to support the transportation objectives of the provincial Growth Plan for the Greater Golden Horseshoe by providing for the efficient movement of people and goods within the study area. The need for an eastwest freeway, north of Toronto and connecting to Highway 35/115 in Clarington was initially considered in the 1950s and 1960s, and the 407 transportation corridor was included in the Parkway Belt West Plan in The existing corridor originates at the Queen Elizabeth Way in the City of Burlington and terminates at Brock Road in the City of Pickering. To date, planning decisions related to land use and transportation have included the easterly extension of the corridor. Various planning studies were previously undertaken to determine the location of particular segments of the 407 corridor as it exists today. A recommendation for the inclusion of a dedicated rightofway (ROW) for transit as part of the 407 East Transportation Corridor through Durham Region was also made previously through a variety of studies. Key areas addressed in the 407 East Transportation Corridor EA included: To provide a new transportation corridor to address transportation capacity deficiencies; To provide a comprehensive freeway network through Durham Region to improve mobility, network flexibility and provide an alternative emergency/detour freeway route in Durham Region; To offer relief to traffic congestion on local roads, as the freeway will provide an alternate route for through traffic; To meet infrastructure needs to address continued population and employment growth in Durham Region and eastern Greater Toronto Area; and To allow for better and more efficient transportation and flow of goods between Toronto and eastern Ontario.

9 P.1.1. Design and Construction Report #6 7 of DRRCGPR East Transportation Corridor The 407 East Transportation Corridor will extend by 50.0 kilometres (km) from Brock Road to Highway 35/115. This includes 2 northsouth links of 10.0 km connecting the Highway 401 to the proposed 407 Transportation Corridor, with 1 link in West Durham (Whitby) and the other link in East Durham (Clarington). The ultimate design plan includes: P.1.2. Ten lanes from Brock Road to Harmony Road and 8 lanes from Harmony Road to the East Durham Link; Six lanes from the East Durham Link to Highway 35/115, 6 lanes on the West Durham Link (WDL) and 6 lanes on the East Durham Link; metre (m) highway ROW and 60.0 m transitway ROW. The highway component includes provisions for High Occupancy Vehicle lanes for passenger vehicles; Twenty interchanges, 14 road closures, 42 road crossings, 65 stormwater management (SWM) ponds; and Two highway maintenance facilities, 2 transitway maintenance facilities, 2 commercial vehicle inspection facilities, 3 truck laybys along the links and 17 transitway stations. Environmental Assessments The 407 East Transportation Corridor EA was captured by both federal and provincial environmental assessment (EA) legislation. In June 2010, the Ontario Minister of the Environment (MOE), under the Ontario Environmental Assessment Act (OEAA), granted approval (subject to conditions) of the 407 East Transportation Corridor EA. Shortly afterwards, in July 2011, the Federal Minister of the Environment, under the Canadian Environmental Assessment Act (CEAA), approved the Comprehensive Study Report and made a decision that the 407 Transportation Corridor is not likely to cause significant adverse environmental effects with the implementation of appropriate mitigation measures. P.1.3. Phased Implementation The East Transportation Corridor will be implemented in phases by Infrastructure Ontario (IO), in partnership with MTO ( the Province of Ontario ). Please refer to Figure P1. Construction of Phase 1 (, the Project ) started in early 2013 and will be completed by late 2015 and includes 32.0 km of highway from east of the Brock Road interchange in Pickering to east of Harmony Road in Oshawa and the WDL.

10 Design and Construction Report #6 8 of DRRCGPR Phase 2 of the 407 East Transportation Corridor will be divided into two parts. Phase 2A from Harmony Road to Taunton Road/East Durham Link is scheduled to be completed by Phase 2B includes the section from Taunton/East Durham Link to Highway 35/115, and a 10.0 km northsouth highway (East Durham Link) connecting East and Highway 401 and is anticipated to be completed in 2020.

11 Design and Construction Report #5 9 of DRRCGPR Figure P1: and 2

12 P.1.4. Design and Construction Report #5 10 of DRRCGPR Project Delivery The implementation of will occur using an Alternative Finance and Procurement delivery model. The Province of Ontario has awarded the rights to design, build, finance and maintain the Project for a 30year concession period to the 407 East Development Group (407EDG). The Province of Ontario will retain control and ownership of the facility and be responsible for the tolling rates and revenue. Design, build, finance and maintain differs from traditional highway designbidbuild projects because both the finalization of the design details and the construction of a project are carried out simultaneously. The is divided into strategic components and work packages in a manner that allows early parts of the Project to go ahead with construction, while latter parts of the Project are finalizing their design details. This method is advantageous for larger construction projects with a short schedule and makes efficient use of resources to support completion. The will be a new multilane toll highway with staged widening toward the ultimate development of a comprehensive freeway network through Durham Region. P.1.5. Current Design Build The designbuild development stage encompasses transportation layout, community features and environmental impact mitigation measures. Supporting elements, such as drainage, Maintenance Facility, noise barrier walls stormwater management (SWM), lighting system and signage are also considered. Transportation Layout The main line of is approximately 22 km long, with 7.4 km of 6lane eastwest freeway from east of Brock Road to the WDL and 12.9 km of 4lane eastwest freeway from WDL to east Harmony Road. Interchanges are found at Lake Ridge Road, Baldwin Street (Highway 7/12), Thickson Road, Simcoe Street and Harmony Road. The WDL is a 4lane northsouth freeway connecting and Highway 401 with interchanges at, Highway 7, Taunton Road, Dundas Street, Lake Ridge Road and Highway 401. The Highway 401 and WDL Interchange includes a 5.0 km realignment of Highway 401 (6lane freeway) from east of Salem Road to west of Henry Street, with an interchange at the realigned Lake Ridge Road.

13 Design and Construction Report #6 11 of DRRCGPR Community Features Considerations for communityfocused features are identified in the Community Value Plan (CVP) and include but are not limited to: Enhanced corridor landscaping and aesthetic screening; Noise mitigation measures; Gateway features, signage; Architectural enhancement of bridges; Local heritage strategies (such as commemorative plantings, signage; adaptive resource use); Designated wildlife crossings and associated wildlife fencing; Wetland and forest restoration; Trails and pathways; and First Nations/community commemorative landscape and bridge architectural elements. Environmental Impact Mitigation Measures The EAs conducted for the Project concluded that environmental effects of the undertaking can be appropriately prevented, mitigated or remedied. Mitigation measures to address noise, wildlife, fisheries and water quality among various other factors were identified. Vegetation restoration will be undertaken to replace the loss of forests and wetlands within the Project lands at 1:1 compensation ratio. The objective of the vegetation compensation is to restore and/or enhance wildlife and ecological linkages among vegetation communities and promote the reestablishment of selfsustaining terrestrial and aquatic environments, including restoration of Species at Risk (SAR) habitat. In addition, environmental conservation, enhancement and compensation measures will include: SAR permit requirements, including implementation and monitoring of Overall Benefit Plans for recovery of endangered species (Butternut, Redside Dace, Bobolink, Eastern Meadowlark and Barn Swallow); Mitigation and documentation of historical First Nations and early settlement sites; Remediation of contaminated soil; Implementation of terrestrial mitigation measures (e.g., Forest Edge Management Plans, invasive species management, etc.); and

14 Design and Construction Report #6 12 of DRRCGPR Design and implementation of fish habitat compensation plans using natural channel principles for stream realignment designs to ensure no net loss of fish habitat, and where feasible, overall enhancement. Public Participation The public has an important role to play during the design and construction phases of the Project. Community input to detail designs required for construction has been solicited at Public Information Centres (PIC) in 2012, 2013 and Questions, feedback and comments are always welcome. P.2. PROJECT ORGANIZATION & IMPLEMENTATION On March 21, 2012, a fixedprice contract between the Province and the 407EDG to design, build, finance and maintain was signed. This partnership is committed to ensuring that mitigation measures and compliance monitoring are implemented relative to the commitments made during the EA process and in subsequent detail design phases. P East Development Group The 407EDG team includes designers, builders, financiers and operators who will complete the Project. 407EDG has assumed the responsibility for delivering and complying with all obligations, commitments, and responsibilities stated in the approved provincial and federal EAs, applicable permits, authorizations and approvals that are required to execute the Project. 407EDG consists of two companies, Cintra Infraestructuras S.A., a division of Ferrovial S.A, and SNCLavalin Inc. (through its division, SNCLavalin Capital). P East Construction General Partnership To design and build the, 407EDG has formed and established a DesignBuild Contractor in the form of a Joint Venture company referred to as the 407 East Construction General Partnership (407ECGP). 407ECGP will act as the designers and builders of the Project and are directly responsible for executing construction and will manage the design. 407ECGP consists of a fully integrated team of two equity members SNCLavalin Inc. through its SNCLavalin Construction Division and Ferrovial Agroman S.A. This relationship ensures the highest levels of quality, innovation, and safety for the design and construction of the Project.

15 Design and Construction Report #6 13 of DRRCGPR ECGP has retained a design team consisting of three companies, Janssen & Spaans Engineering Inc.; AIA Engineers Limited; and SNCLavalin Environment (a Division of SNC Lavalin Inc.). These three companies are responsible for the overall highway design, including road and pavement design, structures, utilities, illumination, traffic management, environmental protection and compensation, and components of the CVP. Figure P2 outlines the team structure. Figure P2: 407 East Development Group Cintra is one of the world s largest private developers of highway infrastructure with more than 40 years experience in development and managing highways. SNCLavalin Inc. is one of the leading engineering and construction groups in the world, and major player in the ownership of infrastructure and in the provision of operation and maintenance services. Ferrovial Agroman is the company heading up the construction division of Ferrovial S.A. and is involved in all areas of construction. Within the context of civil works, the company designs and builds all types of infrastructures such as roads, railways, hydroelectric works and industrial projects. SNCLavalin Construction is a world leader in engineering and construction projects, driven by its overall objective of creating value, in the constant respect of quality, environment and health & safety.

16 Design and Construction Report #6 14 of DRRCGPR P.3. ENVIRONMENTAL ASSESSMENT PROCESS The 407 East Transportation Corridor Study was undertaken in accordance with the requirements for an Individual EA under the OEAA and the requirements of the CEAA, which are described in the subsequent subsections. Both EA processes were coordinated in accordance with the CanadaOntario Agreement on Environmental Assessment Cooperation. MTO and 407EDG are committed to ensuring that compliance monitoring of commitments made during both the EAs and subsequent phases, including those related to conditions of permits and approvals, are adhered to. 407EDG in partnership with MTO is maintaining consultation efforts to keep interested parties and First Nations informed of activities, future design stages, and Project implementation. P.3.1. OEAA Purpose Ontario Environmental Assessment Act The purpose of the OEAA is to protect and conserve Ontario s environment by ensuring that projects subject to the Act follow a planning process leading to environmentally sound decisionmaking. The intent is to predict the environmental effects of proposed initiatives or projects before they are carried out. A key component of the OEAA and good planning is to ensure that reasonable and meaningful consultation opportunities for members of the public, agencies, First Nations and other key stakeholders are provided throughout the process. EA Project Phases The 407 East Transportation Corridor EA followed the requirements of the OEAA under the EA process (Section 6.1 (2) of the OEAA), with the framework for this study set out in the 407 East EA terms of reference approved by the MOE in January, Six main Project phases were examined, as follows: Project Initiation; Transportation Problems and Opportunities; Transportation Alternatives (Alternatives to the Undertaking); Route Alternatives (Alternative Methods); Preliminary Design; and EA Report. An overview of the EA study process is shown in Figure P3.

17 Design and Construction Report #6 15 of DRRCGPR Figure P3: Overview of EA Process Individual Environmental Assessment Report The 407 East Transportation Corridor EA, was completed in August 2009 and submitted to the Ministry of the Environment for review and approval. Approval under the OEAA was granted by the Minister of the Environment in June The 407 East Individual Environmental Assessment and Preliminary Design Study (August, 2009) ( EA report ), can be accessed at P Ministry of Transportation Class Environmental Assessment The MTO Class Environmental Assessment for Provincial Transportation Facilities 2000 (MTO Class EA) is an approved planning document under the OEAA that defines groups of projects and activities and the EA process which MTO commits to follow for each undertaking, under the provision of the OEAA. Under the MTO Class EA, the 407 East Transportation Corridor is considered a Group A level Project, due to it being a new provincial transportation facility. Therefore, in accordance with the MTO Class EA, the 407 East Transportation Corridor EA was conducted following the Individual EA planning process requirements under the OEAA.

18 Design and Construction Report #6 16 of DRRCGPR The is utilizing the MTO Class EA (Design and Construction Report preparation) in order to document how "Commitments to Future Work and Public Participation" as described in the EA report are being addressed prior to the commencement of construction activities. P.3.2. Overview Canadian Environmental Assessment Act The CEAA sets out the responsibilities and procedures for carrying out the EA of projects that involve federal government decisionmaking. Under legislation prior to 2012, the federal EA process applied whenever a federal authority (such as a federal department or federal agency) had a specified decisionmaking responsibility in relation to a project. This was known as triggering for an EA. There were two triggers for the Project, federal lands were required to enable the undertaking to be carried out and the federal government needed to exercise regulatory duties in relation to the undertaking issue a permit or license that is included in the Law List Regulations pursuant to CEAA (i.e., Authorization under the Fisheries Act). Project Scope The scope of the Project for the federal EA included the entire 407 East Transportation Corridor development and began as a screening level assessment in May In March 2010, as a result of the January 21, 2010 Supreme Court of Canada ruling in MiningWatch Canada versus Canada (Minister of Fisheries and Oceans et al.), it was determined that the Project was required to continue to a higher elevated level of assessment, as a Comprehensive Study. Comprehensive Study Report As part of federal EA process, the public and Aboriginal groups were invited to provide comments on the conclusions and recommendations contained in the Comprehensive Study Report prepared for the Project. The Comprehensive Study Report presents the public, Aboriginal groups and the Canadian Minister of the Environment with the Canadian Environmental Assessment Agency s analysis, conclusions and recommendations on the fundamental consideration set out in the Act, which is whether or not the Project is likely to cause significant adverse environmental effects. In July 2011, the federal Minister took into account the implementation of appropriate mitigation measures, and rendered a decision based on the Comprehensive Study Report, that the Project is not likely to cause significant adverse environmental effects. A followup compliance monitoring program to verify the accuracy of the federal EA and/or determine the effectiveness of measures taken to mitigate the adverse environmental effects is required, and will be documented in separate document by 407EDG.

19 P.3.3. Design and Construction Report #6 17 of DRRCGPR Other Provincial/Federal Approvals Ontario Endangered Species Act, 2007 Purpose and Project Scope The Ontario Endangered Species Act, 2007 (ESA) came into force on June, The Act provides species protection (s.9) and habitat protection (s.10) to those species listed as extirpated, endangered and threatened on the SAR in Ontario List, Ontario Regulation 230/08, issued under the ESA. Note that as of June 30 th, 2013, general habitat protection is in place for transition species. Therefore, all species listed as threatened or endangered under Ontario Regulation 230/08 are afforded as minimum general habitat protection, unless a habitat regulation for the species has been issued. At this time, specific habitat protection guidelines are being rolled out by the Ministry of Natural Resources and Forestry (MNRF) for individual species. Identified Species at Risk Through several years of natural heritage inventories, it was determined that the construction of the Project will interact with five species and/or their habitat protected under the ESA, including: Butternut (Juglans cinerea); Bobolink (Dolichonyx oryzivorus); Eastern Meadowlark (Sturnella magna); Barn Swallow (Hirundo rustica); and Redside Dace (Clinostomus elongatus). Permits under Section 17(2)(c) of the ESA have been secured by the MTO for the above SAR. Federal Fisheries Act Authorizations Affected Watercourses There are a total of 33 watercourses within the Project footprint that will require modification or alteration of fish habitat to facilitate construction of the 407. These watercourses are located in the watersheds of Duffins Creek, Carruthers Creek, Lynde Creek and Oshawa Creek. The works at 8 of the 33 watercourse sites have been determined to result in the harmful alteration, disruption or destruction (HADD) of fish/fish habitat; or serious harm to fish and, therefore, will require authorization under the Fisheries Act for channel realignments and/or enclosures along the corridor.

20 Design and Construction Report #6 18 of DRRCGPR The 407EDG, on behalf of MTO, will obtain authorizations under subsection 35(2) of the Fisheries Act from Fisheries and Oceans Canada (DFO) prior to relevant construction works or activities. Other Permits and Approvals The construction of the Project will require other permits and approvals from municipal, provincial, and federal departments and agencies. Not all permits are required for each work package. The types of permits and approvals and the activities that they apply to are summarized in Table P1. Table P.1: Permit or Approval Federal National Energy Board Canadian Transportation Act Provincial Highway Traffic Act (Designation of Construction Zone) Ontario Water Resources Act (Permit to Take Water) Ontario Heritage Act (Clearance) Municipal Noise Bylaw Exemption City of Pickering, Town of Whitby, Town of Ajax, City of Oshawa Road Occupancy Permit Road Entrance Permit Other Permits and Approvals Required Prior to Construction Related Requirement TransNorthern Oil Pipeline (WDL area) and TransCanada Gas Pipeline to construct crossings of their oil/gas pipelines. Agreement with Canadian Pacific Rail between Rossland Road and Taunton Road on WDL to construct a crossing of its corridor. Construction activities associated with provincial highways. For dewatering activities exceeding 50,000 liters/day (e.g., to keep excavation areas dry for construction). Areas with known archaeological resources, or with archaeological potential, prior to ground disturbance and excavation. For construction activities outside permitted hours stipulated in local municipal noise control bylaws. For construction on existing local and regional municipal road ROW. Required for closing and establishing new entrances on existing municipal roads. P.4 PURPOSE OF DESIGN AND CONSTRUCTION REPORTS (DCR) In accordance with MTO s Class EA, commitments to future Project work include the preparation of documentation necessary for the Detail Design phase. This is required in the form of a Design and Construction Report (DCR) which documents the development of the Preliminary Design scheme to a design implementation level (referred to as Detail Design). A DCR addresses and documents significant design alternatives generated during the course of Detail Design and the Recommended Plan. It includes a summary of the consultation process during Detail Design, a description of the proposed design features, a summary of environmental investigations conducted during Detail Design, specific environmental issues,

21 Design and Construction Report #6 19 of DRRCGPR mitigation measures and commitments, and commits to monitoring procedures associated with the implementation of a project. This DCR demonstrates how EA commitments and associated MOE Conditions of Approval have been addressed as applicable to the work activities described in this report. It is not intended as a mechanism to reopen planning decisions documented in the approved EA report. DCR Contents In general, DCRs will include the following information: Introduction and overview of the Project; Summary of the proposed design and work activity addressed in the DCR; Description and results of the consultation program; The transportation, engineering and environmental issues and how they are being incorporated; Description of the Recommended Plan, including design alternatives, if applicable; Description of existing environmental conditions, effects and mitigation measures; Identification of all project approvals, clearances, licenses and permits that have been or must be obtained prior to construction; Commitments to future work and monitoring aspects of the Project; and Supporting technical documentation and selected construction contract package elements. P.5 OVERALL CONSULTATION PLAN The 407EDG has prepared a Community and Stakeholder Consultation Plan (Consultation Plan) which provides a comprehensive approach to consultation that will be flexible, inclusive, and integrated to proactively solicit feedback and input from all stakeholder groups on design and construction. It is a living document that will be reviewed for relevance of its strategy and application every six months, and will be updated annually until the final DCR has been submitted. The Consultation Plan conforms to the requirements set out in both the federal and provincial EA approvals and ensures that the full ranges of topics related to the Project are examined by the public.

22 Design and Construction Report #6 20 of DRRCGPR The Consultation Plan is guided by the following principles: P.5.1. External stakeholders, including external agencies and the public are to be notified of the 407EDG s intention to carry out a study at the beginning of the study, before the 407EDG becomes committed to a particular solution. To place emphasis on consultation with the stakeholders most directly affected. To provide timely, userfriendly opportunities for input by the public and the agencies whose mandates are most directly affected. Consultation is to be used to assist in the identification of data requirements. The 407EDG is to constructively address input received during the consultation process. During the detail design phase, the 407EDG will show how the input received in earlier stages affected the Project. The amount, extent and timing of consultation will vary according to the complexity of a specific issue(s), the nature of the specific environmental issue(s), and the concerns expressed by the public and external agencies. For each consultation event, appropriate methods of notification will be selected based on the nature of the study area, the external parties to be contacted, the stage of the study, and the issues to be addressed. The 407EDG will make reasonable efforts to resolve concerns. Mediation will be considered for major issues, at key decision points. Engagement of Stakeholders Consultation with stakeholders will include, but not be limited to, the following groups: The general public; Elected officials and staff of the Regional Municipality of Durham, the Town of Ajax, the City of Oshawa, the Town of Whitby, and the City of Pickering; Emergency service providers; Transit providers; Interested community groups; Neighbourhood/resident associations and community groups; Federal and provincial agencies including conservation authorities; Local business owners;

23 Design and Construction Report #6 21 of DRRCGPR Individual property owners; Utility companies; First Nations. (Note: Province retains responsibility for Aboriginal consultation and communications); and All applicable parties listed in Chapter 4 of the 407 East Transportation Corridor EA including: the Municipal Technical Advisory Group (MTAG); the Regulatory Agency Group (RAG), and ad hoc Neighbourhood Issues Advisory Groups. Consultation with Regulatory Agencies and Municipalities Consultation with regulatory agencies and municipalities will be undertaken as part of the consultation process for the. This involved the establishment of the RAG and MTAG. The RAG is comprised of representatives from regulatory agencies with mandates for environmental protection and related approvals. Prospective RAG members include MTO, MNR, MOECC, Ministry of Tourism Culture and Sport, Conservation Authorities, DFO, Canadian Environmental Assessment Agency, Environment Canada, Transport Canada, and Natural Resources Canada. The representatives are expected to have the authority to make decisions on behalf of their organizations at the roundtable sessions. Technical meetings with individual agencies may be held outside the RAG forum to address sitespecific issues. The RAG will meet at regular intervals (monthly or as otherwise deemed appropriate) to: Provide strategic participation by regulatory agency representatives to achieve Project implementation objectives (e.g., involvement in development of environmental protection, mitigation and compensatory strategies, plans and designs as prescribed in the EA commitments/conditions of approval); Facilitate approvals; and Provide updates on legislative and regulatory requirements. At the outset, MTAG will receive information on the overall approach to implementation of the Project; including provisions pertaining to the design, construction, and handover of new municipal infrastructure. The MTAG addresses matters of interest to municipal engineering, planning, operations and emergency services staff/providers. Information is provided to the group at milestone junctures (outset; proposed design schemes; major construction staging and scheduling). Meetings are generally held to coincide with PIC, but may also be convened as required.

24 Design and Construction Report #6 22 of DRRCGPR It is expected that MTAG members will keep their respective Councils apprised on the Project. The 407EDG with its design and construction, and operations, maintenance and rehabilitation groups, will provide municipal Councils with special purpose presentations in these regards at the request of MTAG members. Section 2.0 of this DCR documents the consultation process undertaken for the DCR. Commitment to Consultation 407EDG and MTO are committed to ongoing engagement with stakeholders and members of the community throughout the design and construction phases of the East Phase 1. The following key messages are specific to the consultation process and are the underlying pillars that will ensure successful engagement of the public and all other stakeholders: The 407EDG is committed to an open, transparent consultation process; Everyone s views will receive consideration; and A reply will be provided in a timely manner, if a response is requested. Consultation efforts will ensure that stakeholders and interested community members are aware of the Project throughout design and construction, while mitigating potential negative impacts to the greatest extent possible. The consultation approach and activities planned include: Consultation related to Design Construction Reports; Consultation through formal groups, including the MTAG, RAG and 407EAC, and with utilities and railway companies; Consultation through Neighbourhood Issues Advisory Groups to deal with specific issues relating to the Project, such as local traffic disruption, noise or dust; and Consultation through additional outreach activities to promote interaction with the general public. The 407EDG is committed to consultation while maintaining an open and ongoing dialogue with the public and all other stakeholders throughout the duration of the.

25 Design and Construction Report #6 23 of DRRCGPR P.6. PLAN FOR HIGHWAY DESIGN, BUILD AND DCR SUBMISSION To meet the completion schedule, construction of the Project will be initiated using a staged approach and will include a number of discrete but linked work packages, based for the most part on designated Segments, with corresponding DCRs. This approach will allow for effective timing of approvals and review of the DCR specific components by stakeholders through the consultation process. The breakdown of the Project by work package Segments for the Mainline (A1, A2, A3, A4 and A5) and WDL (B1, B2 and B3) are shown in Figure P4. Six DCRs are to be prepared to cover the complete 407 Detail Design and Construction phases. This DCR is the sixth and final DCR in a series that focus on various aspects of the design and construction of the Project. As part of the DCR process, all parties are encouraged to take time to review all of the DCRs as they become available and provide feedback. Table P.2 (after Figure P4) shows the PIC schedule to obtain input on proposed design and construction activities presented in each of the 6 DCRs, and the timing for the release of the DCRs for review.

26 Phase 1 Deferred Interchange Phase 1 Deferred Ramp 6 Lane Section 4 Lane Section Watercourses Waterbody N 14 Dundas Street East Scott Street Ash Street Dundas Street West AJAX STATION Salem Road Rossland Road East Rossland Road Kingston Road East Harwood Avenue South REGION OF DURHAM King Street East King Street West STA TIO Harwood Avenue North ROSSLAND ROAD HWY 401 / WEST DURHAM LINK CP Rail Line SEGMENT B2 Osh aw Brock Street STATION Highway 401 GO Transit / CN Rail Ü Railway Roads Harmony Road North Thornton Road North OSHAWA Legend Phase 1 Interchange Simcoe Street North re ek le C Prin g Garden Street ree k ec Ly nd Conlin Road a Cr e ek Winchester Road East WHITBY STATION STATION STATION Thickson Road North STATION Coronation Road Halls Road North Lake Ridge Road Kinsale Road Westney Road TAUNTON ROAD SEGMENT B3 k ree Taunton Road West Kingston Road West ad Ro Concession Road 5 SEGMENT B1 on East D uffin s Creek WEST DURHAM LINK Church Street North g st Kin s to ac West Oshawa Creek Finch Avenue Cr ee k STATION Paddock Road Sideline 16 Road Brock Road go n PICKERING STATION s We w ha Columbus Road East Goodman Creek ek ia Winchester Road West Highway 7 Concession Road 6 Columbus Road West ek Cre Ga na ts HARMONY ROAD Corbett Creek Concession Road 3 SIMCOE STREET N wa Concession Road 4 BALDWIN STREET a Osh ek Cre Whitevale Road 407 / WEST DURHAM LINK t We s e Urf re ek SEGMENT A5 k Cre e am C SEGMENT A4 e Lynd Spring Creek Brou gh Salem Road Concession Road 7 SEGMENT A3 ek Lynde Cre STATION WESTNEY / SALEM SEGMENT A2 Country Lane SEGMENT A1 STATION HIGHWAY 407 EAST PHASE Key Plan 2 km Date: 2013/02/04 Figure: P4 File Number: 0000 Rev.: Sub Code: 0000

27 Design and Construction Report #5 25 of DRRCGPR Table P.2: Overall Plan for Design and Construction Reports and PICs DCR # DCR Title and Project Area 1 Segments B2 and B3 Grading, Drainage, Paving and Structures Segments A1, A2, A3, A4, A5, B1, B2 and B3 Vegetation Clearing 2 Segments A1, A3, A4, A5 and B1 Structures and Stream Realignments 3 Segments B1, A3 and A4 Grading, Drainage, Paving, Structures and Stream Realignments Segment A1 Remaining Structures and Stream Realignments 4 Segment A1 Grading, Drainage and Paving Segment A2 Selected Structures and Stream Realignments Segment A5 Grading, Drainage, Paving, Remaining Structures and Stream Realignments 5 Segment A2 Grading, Drainage, Paving and Selected Structures Work Addressed Vegetation Clearing Structures Earthworks, Drainage and Grading Stream Realignments Canadian Pacific Railway (CP Rail) Detour Construction Staging and Traffic Management Structures Stream Realignments Construction Staging and Traffic Management Structures Earthworks, Drainage and Grading Stream Realignments Construction Staging and Traffic Management Noise Barriers Preliminary Structures Earthworks, Drainage and Grading Stream Realignments Construction Staging and Traffic Management Structures Earthworks, Drainage and Grading Construction Staging and Traffic Management Public Information Centre December 12 and 13, 2012 January 29, 2013 April 3, 2013 April 23, 2013 July 17, 2013 Issue Date for 30Day Public Review January 31, 2013 March May 14, 2013 June 12, 2013 September 16, All Segments Community Value Plan, Landscaping and Ecological Restoration, and Illumination Segment B2 Culvert and Stream Realignment Community Value Plan (e.g., trails, gateway features, heritage commemorative sites) Landscape Plan Vegetation Restoration Plans Illumination Culvert W17 and Stream October 14 and 15, 2014 February 2015

28 Design and Construction Report #6 26 of DRRCGPR DCR # DCR Title and Project Area Segment A1 Maintenance Facility Work Addressed Realignment Modifications to Prior Structures Stormwater Management Pond Details Noise Barrier Wall Design Final Maintenance Facility Public Information Centre Issue Date for 30Day Public Review Consultation The 407EDG recognizes that a staged approach to highway construction may be unfamiliar to the public and stakeholders, and therefore is committed to continuously engaging with the public, agencies and all other interested and affected stakeholders throughout the DCR process. For each work package and associated DCR, regulatory agencies, municipalities, First Nations and other potentially affected and interested parties will be provided with an opportunity to review and provide feedback. Viewing Locations This DCR is being made available to the public, regulatory agencies, municipalities, First Nations and other potentially affected and interested parties for a 30day review period. Following the 30 day review period, construction may commence in accordance with the description provided in this document, contingent upon completion of appropriate consultation and the receipt of any other required approvals, permits and authorizations. The following recipients will receive a copy of this DCR for the public record and viewing as stipulated in Condition 3 (Public Record) of the Ontario MOE Notice of Approval for the Project: MTO, Major Project Office, Central Region; Regional Municipality of Durham, Clerk s Office; Town of Whitby, Clerk s Office; Town of Ajax, Clerk s Office; City of Oshawa, Clerk s Office; City of Pickering, Clerk s Office; and MOECC, Environmental Approvals Branch.

29 Design and Construction Report #6 27 of DRRCGPR In addition to those listed above, this DCR will also be available for public review at the following locations: City of Pickering Public Library, Main Branch; Town of Ajax Public Library Main Branch; Town of Whitby Public Library, Main Branch; City of Oshawa Public Library, Main Branch; and 407EDG Project Office. A copy of this DCR will also be provided to: MOECC, Central Region Office; MOECC YorkDurham District Office; MNRF, Aurora District Office; Toronto and Region Conservation Authority; and Central Lake Ontario Conservation Authority. This DCR, including supporting documentation, can also be accessed electronically from the Project website Design and Construction Report Amending Procedure During the course of the Detail Design phase, unexpected changes in conditions, development of new technologies or mitigation measures, or the identification of previously unknown concerns may occur, all of which may lead to modifications to the proposed design and related commitments made in the DCR. In this regard, an amendment to the DCR may be required where there are significant changes to commitments made in the DCR. Where significant changes to commitments made in the DCR are proposed, 407EDG will discuss proposed changes with the affected party(ies). If all affected parties can be clearly identified and those parties agree that an Addendum to the DCR is not required, then none will be prepared. If an Addendum is required, the environmental effects associated with the change, and the proposed mitigation will be documented in a subsequent future DCR or an Addendum, which will be filed in the Public Record for 30 calendar days.

30 Design and Construction Report #6 28 of DRRCGPR OVERVIEW OF PROPOSED WORK ACTIVITIES The following is an overview of the proposed works in DCR #6. Design and implementation of the Community Value Plan (CVP) and Landscaping and Ecological Restoration Plan for all segments of the Project. Vegetation Restoration Plans to be implemented on surplus MTO owned lands (outside the highway corridor) to establish new forests, wetlands and Species at Risk (SAR) habitat as replacement/compensation for impacts as a result of the Project, with the objective to meet EA commitments and conditions of the Endangered Species Act Permits. Design and construction of illumination for the Project that will consist of conventional lighting at municipal road interchanges and High Mast Lighting (HML) at the Highway 401/West Durham Link (WDL) and East Mainline/WDL Interchanges. Design and construction of Lynde Creek Tributary A Culvert, Structure W17 (Water Crossing Site 97) and a stream realignment to allow for the creek crossing of Rossland Road and future ramp configuration at the Rossland Road/WDL Interchange (Segment B2). Design modifications to twelve (12) structures that were previously presented in past DCRs. The structures include: o o o o o Carruthers Creek Tributary A Bridge, Structure M17, (Water Crossing Site 11) to allow for the crossing of the mainline over Tributary A of Carruthers Creek (Segment A1, DCR #3). Caruthers Creek Tributary E Bridge, Structure M21, (Water Crossing Site 15) to allow for the crossing of the mainline over Caruthers Creek Tributary E (Segment A1, DCR #3). Lynde Creek Tributary A Culvert, Structure M22, (Water Crossing Site 16) to allow for the crossing of the mainline over Lynde Creek Tributary A (Segment A1, DCR #5). Winchester Road Bridge, Structure M50, which carries the East Phase 1 mainline over Winchester Road (Segment A3, DCR #2). Oshawa Creek East Branch Bridge, Structure M55 (Water Crossing Site 35), to allow for the crossing of the mainline over Oshawa Creek East Branch and Ritson Road (Segment A5, DCR #4).

31 Design and Construction Report #6 29 of DRRCGPR o Lynde Creek Tributary Bridge, Structure W6, (Water Crossing 51) to allow for Highway 401 over Lynde Creek Tributary A, within the of WDL/Highway 401 interchange (Segment B1, DCR #2). o Highway 401 West WDL North Ramp Bridge, Structure W7, (Water Crossing 51) (Water Crossing 51), which carries the subject ramp over Lynde Creek Tributary A and Highway 401 (Segment B1, DCR #2). o Lynde Creek Tributary T Culvert, Structure W1, (Water Crossing 99) to allow for Highway 401 and Lake Ridge Road interchange ramp crossings over Lynde Creek Tributary T (Segment B1, DCR #3). o Lynde Creek Bridge, Structure W10, (Water Crossing 100) to allow for Highway 401 over Lynde Creek (Segment B1, DCR #2). o o o Lynde Creek Tributary B Culvert, Structure W14, (Water Crossing Site 47) to allow for WDL over Lynde Creek Tributary B, located about 500 metres south of the Rossland Road (Segment B2, DCR #1). Wildlife Crossing Culvert, Structure W23, (Crossing Site 43B) to facilitate wildlife passage for a range of small animals, located on WDL about 1,350 metres north of Taunton Road (Segment B3, DCR #1). Wildlife Crossing Culvert, Structure W24, (Crossing Site 43A) to facilitate wildlife passage for a range of small and large animals, located on the WDL about 2,650 metres north of Taunton Road (Segment B3, DCR #1). Design and construction of the Maintenance Facility to support the operations of the Highway 407 Project, to be located on the east side of Salem Road, immediately south of the highway (Segment A1). Design details for the construction of two noise barriers recommended for the Project, one along the mainline of the highway at the Village of Brooklin (Segment A3), and one along the north side of Highway 401 in the Town of Whitby (Segment B1). The latter replaces an existing barrier on Highway 401 that has been removed to accommodate realignment of the Highway 401. Further design details for all stormwater management ponds for the Project that were previously presented in past DCRs. Other related supportive works, including: o Installation and maintenance of erosion and sediment control measures for new work elements, such as the construction of Structure W17 and associated stream realignment, Maintenance Facility and noise barrier walls for the Project; and

32 Design and Construction Report #6 30 of DRRCGPR o Temporary lane restrictions and/or road closure of Rossland Road at the WDL to allow for construction of Lynde Creek Tributary A Culvert (Structure W17), including the required stream realignment and reconstruction of Rossland Road. The location of the proposed noise barrier walls, Maintenance Facility and structures described above are shown on Figure 11. The Detail Design drawings for the landscaping, stormwater management ponds, Maintenance Facility and structures documented in this DCR are provided in Appendix A. The Community Value Plan for the Project is summarized in Section 3.1. The CVP document in its entirety is available for review electronically on the Project website and at 407EDG s Project Office. Construction of the proposed works described in this DCR are schedule to be undertaken in The following sections of this DCR are organized as follows: Section 2 and Appendices B and C outline input received from public, agency, and stakeholder consultation and First Nations engagement; Section 3 and Appendix A provide details the specific works associated with this DCR; Section 4 presents the identified impacts and mitigation measures and commitments associated with the works; and Section 5 summarizes overall Project environmental monitoring.

33 Church Street North Harwood Avenue North Salem Road Ash Street Country Lane Sideline 16 Road Paddock Road HIGHWAY 407 EAST PHASE 1 SEGMENT A1 SEGMENT A2 SEGMENT A3 SEGMENT A4 SEGMENT A5 STATION WESTNEY / SALEM 407 / WEST DURHAM LINK BALDWIN STREET SIMCOE STREET N HARMONY ROAD Concession Road 7 Site 15 Carruthers Creek STATION Lynde Creek STATION Columbus Road West STATION West Oshawa Creek STATION M55 Columbus Road East STATION Thickson Road North M50 Spring Creek M17 M21 M22 Winchester Road East Urfe Creek Brock Road Brougham Creek East Duffins Creek Concession Road 6 STATION Salem Road Highway 7 PICKERING Site 43A Winchester Road West W24 Wildlife Crossing Lynde Creek Pringle Creek West Oshawa Creek Simcoe Street North Oshawa Creek Harmony Road North Whitevale Road Concession Road 4 Concession Road 3 Finch Avenue Kingston Road Ganatsekiagon Creek WEST DURHAM LINK Kingston Road West SEGMENT B1 SEGMENT B2 SEGMENT B3 Westney Road TAUNTON ROAD Concession Road 5 STATION ROSSLAND ROAD STATION HWY 401 / WEST DURHAM LINK Harwood Avenue South Taunton Road West Rossland Road AJAX STATION Site 97 Lynde Creek Tributary A Kingston Road East Kinsale Road Site 43B Site 47 Lynde Creek Tributary B W1 Highway 401 CP Rail Line GO Transit / CN Rail Lake Ridge Road Halls Road North W6 W17 W7 Coronation Road W23 Wildlife Crossing W14 Dundas Street West W10 STATION Lynde Creek Brock Street Garden Street WHITBY Conlin Road REGION OF DURHAM Dundas Street East Rossland Road East Scott Street Corbett Creek Thornton Road North Goodman Creek King Street West OSHAWA West Oshawa Creek King Street East Legend Phase 1 Interchange Phase 1 Deferred Interchange Phase 1 Deferred Ramp 6 Lane Section 4 Lane Section Noise Barrier Wall Roads Railway Maintenance Yard Watercourses Waterbody ( Structures Site 100 Lynde Creek Ü km Location of Select Design Elements Date: 2015/02/03 File Number: 0000 Sub Code: 0000 Figure: 11 Rev.: Document Path: Z:\011712Hwy407\407 Organized\DCR_6\KeyMap_Structures_11x17_Feb2015.mxd

34 Design and Construction Report #6 32 of DRRCGPR CONSULTATION PROCESS Consultation is an integral component of various pieces of provincial and federal environmental legislation. Consultation provides a mechanism for a proponent to define and respond to issues before decisions are made on a project. 407EDG and MTO are committed to ongoing engagement with stakeholders and members of the community throughout the design and construction phases of the. Recognizing the extensive efforts made to engage the community during the 407 East Transportation Corridor EA, the Project team will maintain and build on previous consultation efforts, ensuring consultation plans move design and construction processes forward, meet the needs of the community, and satisfy EA commitments that have been made. The 407EDG Project team has developed a Community and Stakeholder Consultation Plan ( Consultation Plan ) that provides several opportunities for twoway communication with stakeholders and the public. The guiding principles of the Consultation Plan, and consultation activities and methods to be utilized for the Project, have been described in the preface of this DCR (Refer to Section P.5). In general, the Consultation Plan provides a comprehensive approach to consultation that proactively solicits feedback and input from all stakeholders and community groups and ensures that consultation activities are effectively integrated in finalizing the design and during construction of the Project. As a general consideration, the views and perspectives of various stakeholders will be given respectful consideration and due weight. Those to be consulted will include, but not be limited to the following: The general public (including property owners, ratepayer and neighbourhood groups, and citizens at large); Regional and local municipalities: the Regional Municipality of Durham ( Region of Durham ), City of Pickering, Town of Ajax, Town of Whitby and City of Oshawa; Aboriginal communities; Businesses (both individual operators and representative groups, such as the Chamber of Commerce/Board of Trade); Local transportation service providers; Federal and Provincial agencies, including local conservation authorities; Utility companies; Emergency medical, police and fire service providers; and

35 Design and Construction Report #6 33 of DRRCGPR Various community interest groups, including environmental groups, health groups, natural and cultural heritage groups, and others Government Agencies and Municipalities In order to facilitate the consultation process with regulatory bodies and key stakeholders, 407EDG/407ECGP has appeared before local municipal councils to provide information and respond to questions and concerns, and established or participated in a number of regular discussion forums, including: Municipal Technical Advisory Group (MTAG); 407 East Advisory Committee (EAC) (by invitation); Regulatory Agency Group (RAG); and Utility Coordination meetings. Meetings with the above listed groups are ongoing and will continue as needed throughout the design and construction phases. The following describes consultation undertaken with government agencies and municipalities for this DCR Municipal Technical Advisory Group At the outset of the 407 East Transportation Corridor EA, the MTAG was formed and included senior staff from the affected municipalities. Several meetings were held with the MTAG during the EA to discuss and incorporate input from the group into the design of the Project. The MTAG was an important factor in the process, as it provided details of community infrastructure needs and allowed for information exchange on general study issues and with respect to individual municipal issues. Representative members of the MTAG from the EA stage have been streamlined to reflect the current scope of the, and include the following municipalities: Regional Municipality of Durham; City of Pickering; Town of Ajax; Town of Whitby; City of Oshawa; and Municipality of Clarington (discretionary as applicable).

36 Design and Construction Report #6 34 of DRRCGPR MTAG Consultation Summary Meetings were held on December 4, 2013 with the City of Oshawa, February 5, 2014 with Region of Durham, and May 14, 2014 with Region of Durham, Oshawa and Town of Whitby to discuss municipal issues/concerns. From these meetings, the following issues were discussed: Update on design and construction; Traffic management (road detours, closures, etc.); Noise barriers walls; Update on Harmony Road and Columbus Road improvements (Oshawa); Construction of the north and south Wilson Road culdesacs at Highway rto the City s industrial standard (Oshawa); Horizontal alignment of Simcoe Street and the southbound left turn movement onto Winchester Road (Region); Status of the replacement of the in kind cycling facilities on Simcoe Street (Region) Status of Rossland Road culvert (W17) and intersection improvements at Lake Ridge Road; Status and update on Community Value Plan and Landscape Plan; and Upcoming final consultation event (PIC #6). As a result of comments submitted by municipal representatives at and following Public Information Centre (PIC) #6 (refer to Section Public Information Centre #6), a MTAG meeting to discuss the Community Value Plan for the Project was convened on December 4, From the meetings held to regarding the CVP, the following issues were discussed: Community Value Plan o Gateway features o Local heritage commemorative sites, including appropriate text for the signage/plaques at Almond Village and Village of Brooklin o Opportunities for heritage lighting and additional municipal gateway features o TransCanada Trail at Paddock Road, including text for commemorative signage and opportunity for trail head facilities. The primary focus of the MTAG meetings to date has been to define the process to be used to incorporate the comments from the municipalities, to the extent possible, in the final design of the Project. These meetings are, and will continue to be, focused on discussing the various technical

37 Design and Construction Report #6 35 of DRRCGPR questions that the municipalities have with respect to the current design and to keep them up to date on the development of the Project. 407EDG is committed to addressing questions and comments from the municipalities as the detail design progresses; and are discussed at MTAG meetings with the individual municipalities, which are scheduled on an asrequired basis to deal with ongoing design concerns/issues. Municipal Council Meetings There were no presentations to municipal councils during the consultation period for this DCR. In general, 407EDG presentations to municipal councils are undertaken on an as required basis through request from the municipalities East Advisory Committee The 407 EAC was established as per the MOE Conditions of Approval for the Project. The purpose of the EAC is to ensure that concerns about the implementation of the undertaking are considered and mitigation measures are undertaken where appropriate. The EAC is comprised of representatives from local municipal, regional, provincial and federal governments and agencies. The EAC, for which prescriptive Terms of Reference were established during the EA phase, acts in an advisory capacity to the Project team. It is not a decisionmaking body. Committee members are guided by the Terms of Reference and participate on the EAC at the invitation of MTO. Participation on the EAC includes the opportunity to review and comment on Project plans developed by MTO and 407EDG, as specified in the MOE Conditions of Approval for the EA. All recommendations and comments from the EAC will be documented by the assigned coordinator and will become part of the record. The EAC will be provided with the opportunity to review specified documents and may provide advice to MTO and 407EDG. It is mandated that the EAC be composed of representatives from: Town of Ajax; Town of Whitby; Municipality of Clarington (Phase 2 only); City of Pickering; City of Oshawa; Regional Municipality of Durham; Toronto and Region Conservation Authority (TRCA); Central Lake Ontario Conservation Authority (CLOCA);

38 Design and Construction Report #6 36 of DRRCGPR Ganaraska Region Conservation Authority (GRCA) (Phase 2 only); Canadian Environmental Assessment Agency; Environment Canada; DFO; MNRF (as needed basis); MTO; and An observer from the MOECC. 3TFor more information on the EAC, please refer to the EAC Terms of Reference. The Terms of Reference outlines the role of the EAC, presents guidelines for how the EAC will operate, establishes the membership and describes when meetings will take place. 3The Terms of Reference can be found on line at:3t East_Advisory_Committee_Terms_of_Reference November_2012.pdf. The committee has had 13 meetings between September 2010 and November The minutes are publically available and they can be found on line at: EAC Consultation Summary 407EDG was invited to the EAC as an observer and provided an update on the Project at the meeting held on October 30, During the meeting, 407EDG representatives briefed the EAC regarding its internal organization, the distribution of responsibilities and provided an update on the development of the Complaint Protocol developed for the Project. The 407EDG team also responded to questions regarding the progress of the design and environmental permits for the. Notable correspondence and communication with the EAC includes the submission of the draft Vegetation Restoration Plan for the Project on February 19, 2013 in accordance with Condition 18.2 of the of the MOE Notice of Approval to Proceed with the Project. The 407EDG Complaint Protocol and the Annual Compliance Report were also provided to EAC in May 2013, as per Condition 6 of the MOE Notice of Approval. A meeting of the EAC was convened prior to PIC #6, on June 12, 2014 and November 5, 2014, in which MTO provided an update on the status of Phases 1 and 2 of the East, as well as status of various design elements such as the Community Value Plan and Landscape Plan for.

39 Design and Construction Report #6 37 of DRRCGPR Regulatory Agency Group The RAG consists of provincial ministries, agencies, conservation authorities and federal departments potentially affected by or interested in the Project, and was initially formed as part of the consultation process during for the EA. As with MTAG participants, RAG members were initially identified in response to a request from MTO to various agency contacts during the EA, to exchange information and obtain input on general issues and permitting requirements. For the, 407EDG has reestablished RAG meetings with those interested agencies that have expressed an interest in participating and providing input throughout the design and construction of the Project. The RAG promotes an interactive consultation process that includes a series of regularly scheduled meetings (monthly during the design phase). In the regular scheduled meetings, environmentally related design criteria and concept details are presented to sequentially advance design with input from the RAG. Through an iterative review and positive collaborative consultation approach, detailed design is efficiently progressing with timely and constructive input. The interactive review and discussion process also promotes final design, technical documentation and appropriate permit submission that is compliant with the EA Conditions of Approval and regulatory requirements, where applicable. Additional independent context sensitive meetings have also occurred with the MNRF and conservation authorities to address vegetation restoration/compensation plans and ESA Permit elements. Other meetings with DFO have also occurred to discuss fish habitat compensation packages, as necessary. The RAG includes representatives from the agencies listed below: Provincial agencies: MOECC (Central Region; YorkDurham District); MNRF (Aurora District); MTO; Federal agencies: DFO; Environment Canada; Conservation authorities: TRCA; and CLOCA.

40 Design and Construction Report #6 38 of DRRCGPR RAG Consultation Summary To date, 21 RAG meetings have been held, with the most recent meeting being on December 1, Key aspects of discussion during these meeting have included: Vegetation Compensation/Restoration Plan to provide compensation for the loss of forest and wetlands and SAR habitat, which included establishing a technical working group of agencies from the RAG (MNRF, CLOCA, TRCA, Environment Canada) to actively participate in its development. Recent RAG meetings in late 2014 have included addressing environmental issues/concerns from agencies regarding the placement of excess fill material at restoration sites; Update on 407EDG responses to address agencies comments on DCRs; Ongoing updates on construction activities, including details on site erosion and sediment controls, spills and corrective actions to address any noncompliance issues; Overall plan for DCRs and PIC events; Presentation of MTO groundwater and surface water monitoring program; Presentation of design changes for select structures at watercourse crossings from EA/preliminary design stage to current detail design phase; Presentation of natural channel design principles and approaches being applied at required stream realignments; and Opportunities to review and comment on design elements and mitigation measures; All comments received from the RAG will be reviewed by 407EDG for consideration in the design and construction of the Project, in conjunction with IO and MTO Utilities Coordination Consultation (coordination meetings and correspondence) with utility companies potentially affected by the Project was conducted for the proposed works in this DCR, where applicable. The coordination meetings were used to review proposed design and construction issues. The outcome of these meetings is a key input to the Utility Relocation Plan, which will continue to be updated on a regular basis. Details of the utility relocations required to accommodate the proposed works in this DCR are described in Section 3.5. Routine utility coordination meetings and/or correspondence include: Region of Durham; Bell Canada; Rogers Cable;

41 Design and Construction Report #6 39 of DRRCGPR Enbridge Gas Distribution (Enbridge); Whitby Hydro; Veridian Connections; and Oshawa Power and Utilities Corporation Networks Public and Stakeholder Participation As part of the 407 East Transportation Corridor EA, extensive consultation with Aboriginal groups and the public was undertaken by MTO. This consultation included individual meetings with Aboriginal groups, written correspondence, newspaper notifications, distribution of brochures to adjacent residents, meetings and PIC events. For more detail regarding the historical consultation efforts to engage the public and stakeholders during the EA and planning stages of the Project, refer to the 407 East Individual Environmental Assessment and Preliminary Design Study Report, (August 2009). During the Detail Design process for the proposed works in this DCR, a variety of consultation activities took place to ensure that the public and stakeholders are adequately informed and involved in the Project. At mandatory consultation points, the public and stakeholders have been invited to provide input and comment on the Project as it progresses. The primary mechanisms that were used to ensure the requisite level of public and stakeholder involvement for the works described in DCR #6 included: Public notices at milestone points in Project work: o o PIC #6; and Notice of Submission of Design and Construction Report #6 for public review. PIC #6 to present the proposed works in this DCR and receive government agency and public input for the purposes of refining the design. Webbased notification and use of social media. Neighbourhood Issues Advisory Group (NIAG) meetings. o 407EDG held two NIAG meetings with the community. This included a meeting held on September 25 th, 2014 with residents in the St. Thomas Street and East area to discuss community concerns/issues with noise and dust related to construction activity and the reasons for using St. Thomas Street to access the construction site. As well, a meeting was also held on October 2 nd, 2014 with the residents of West Almond Village and Lyndebrook to discuss community concerns with noise and dust and the EA decision not to build a noise wall at Almond Village.

42 Design and Construction Report #6 40 of DRRCGPR The following section provides a brief summary of these mechanisms and the results of the public and stakeholder consultation process Notifications Public Information Centre #6 The notification of PIC #6 was published in the PickeringAjax News Advertiser and Oshawa/Whitby/Clarington This Week on October 1, 2014, and in the Brooklin Town Crier on September 26, The notice was also distributed by invitation letters and posted on the 407EDG Project website. The notice of PIC #6 included: Project history/approvals, information and Project limits; A map showing the existing relationship to the current 407 highway and the proposed highway improvements; Purpose of PIC #6 and venue details; Environmental assessment context (compliance with MTO s Class EA); 407EDG contacts and website information; Where to send comments and feedback; and Freedom of Information and Protection of Privacy statement. A copy of the notice is included in Appendix B1. The Notice of PIC #6, accompanied by a letter, was also ed to key stakeholders on September 29, This included representatives from the MTAG, RAG and EAC and utilities/railways listed in Section 2.1. The notice was also sent to Municipal Clerks offices (Pickering, Ajax, Whitby, Oshawa, Clarington and Region of Durham); the Durham District School Board; public transit providers; emergency and police service providers; local trade and commerce boards/committees; First Nations; and Federal and Provincial Members of Parliament covering the project area. Webbased Notification In addition to the more traditional methods of notification, social media is being used to assist with keeping people informed about the various aspects of this Project. 407EDG has developed a website specifically designed for the Project; the web address is It includes an overview of the Project, the Project team, timelines for any road closures/delays, PICs, media information, Project maps, photos, employment and contractor

43 Design and Construction Report #6 41 of DRRCGPR opportunities, upcoming events, consultation materials, frequently asked questions, contact information and signup for electronic mailing lists to receive construction updates, enewsletters and a rich site summary feed. There are 3 mailing lists for subscribers to the website to get information: Rich Site Summary website updates; ENewsletters 407 East Development Group news; and Project Updates construction updates via subscribers. Questions are directly submitted to the website Ask Us Section and answers are posted in a timely fashion. This system is intended to assist in building a database for the consultation program, with the goal to maintain a twoway and open dialogue with local communities. The website is updated on a regular basis and connections can be made on Facebook and Twitter. In addition to the above webbased notification, 407EDG requested that Oshawa, Whitby, Ajax Pickering and Durham Region post Project notifications on their respective websites, with a link to the Media Advisory On October 6, 2014, a media advisory was issued to all local media outlets prior to PIC #6. Notice of Submission of Design and Construction Report The Notice of the Submission provides notification of the opportunity to review Design and Construction Report #6 for the Project. The notice was placed in the PickeringAjax News Advertiser and Whitby/Oshawa This Week prior to placing the DCR in the Public Record. The Notice of Submission represents the filing of the DCR in the Public Record on February 16, 2015 and includes information on the availability of the report at review locations (see Viewing Locations, after the signature cover page of this report). Notification of the DCR review opportunity is also being made public through the posting of the notice on the Project website homepage, and posting of the DCR and the Community Value Plan on the homepage, as well as providing links to the notice, the DCR and the Community Value Plan on the Project Twitter site. The notice will be ed to all key stakeholders listed in Section 2.1. The notice included: the Project limits; description of the proposed works; the study process;

44 Design and Construction Report #6 42 of DRRCGPR locations and addresses at which to view DCR #6; commencement and expiry dates for the review process; and 407EDG contacts and website information. A copy of the Notice of Submission is included in Appendix B Public Information Centre #6 Public Information Centre events are being conducted to provide stakeholders and members of the public with design and construction related information and the ability to obtain feedback on the design elements and construction related activities. The PICs are designed as informal dropin centres with the members of 407EDG/407ECGP and MTO available at the events to answer questions and provide feedback when required. Attendees are encouraged to complete a comment sheet either at the PIC or following the event, and to submit the comment sheet to the contacts provided, either in person, by direct mail or . At each PIC, the overall plan and timeframe for future PICs and DCRs (refer to Table P2) is presented, and will be posted on the project website to inform members of the public of further consultation events and opportunities for their involvement in the process. PIC #6 is the last in the series of scheduled PICs held for the Project. PIC #6 was held as follows: Venue # 1 Tuesday October 14, 2014 Abilities Centre 55 Gordon Street, Whitby Venue # 2 Wednesday, October 15, 2014 Brooklin United Church 19 Cassels Road East, Brooklin PIC #6 was open for agencies and municipalities to attend between 4:00 pm and 5:00 pm. The public was invited to attend between the hours of 5:00 pm and 8:00 pm. The purpose of PIC #6 was to:

45 Design and Construction Report #6 43 of DRRCGPR Maintain ongoing public, municipal and regulatory agency engagement in accordance with the 407EDG Community and Stakeholder Consultation program and the MTO Class EA process; Provide general information about the Project; Explain how design and construction packages will be delivered for the Project; Provide design details on: o o o o o o The Community Value Plan; Landscaping; Maintenance Facility; Illumination; Noise barrier walls; Rossland Road Culvert (Structure W17) at WDL, including stream realignment. Provide information on how to stay informed and involved throughout the upcoming construction phase. In addition to the Project representatives being available to answer questions, presentation display boards showing the type and extent of work activities were at the PIC. The following information was displayed for discussion purposes with attendees at PIC #6: Overview of ; EA Background and current status, MTO Class EA process, EA commitments; 407EDG approach to consultation; Overall Plan for PICs and DCRs, and purpose of PIC #6; Overview of the Community Value Plan; o CVP themes and enhancement treatments (i.e., universal measures, landscape screening, gateway features, bridge architectural enhancements, local heritage, wildlife crossings); Landscaping and CVP design elements overlaid on aerial plan with highway design; Noise Barrier Walls; Illumination Conventional and High Mast Lighting; Culvert W17 (Water Crossing Site 97) and associated stream realignment;

46 Design and Construction Report #6 44 of DRRCGPR Information on Forest Edge Management Plan, valleyland restoration and Species at Risk; and Next Steps in the design and consultation process. Copies of the display boards presented at PIC #6 can be found in Appendix B2 of this DCR. The full set of PIC #6 displays is posted on the 407EDG Project website. Summary of PIC #6 The following provides a summary of the PIC event, including attendance, comments, responses, and, where applicable, how public and stakeholder input was addressed in the Detail Design process for the proposed works in DCR #6. A total of 45 and 50 people attended the Venue #1 and Venue # 2 sessions, respectively. For Venue #1, there were 42 members of the general public and 3 attendees from government agencies, utilities and municipalities, representing the Region of Durham, and the Town of Whitby. For Venue #2, there were 45 members of the general public and 5 attendees from government agencies, utilities and municipalities, representing the Region of Durham, and the City of Oshawa. One local media representative (Brooklin Town Crier) attended the Venue #2 session. Comment sheets were made available to attendees. Online comment forms were also made available to participants for submission of their comments online. Three written comments were submitted at the Venue #1 session and 7 written comments were received at Venue #2 for PIC #6; these are included in Appendix B3. The public was informed at the PIC that responses to their questions would each be individually answered. Formal letter responses from 407EDG s Chief Executive Officer were sent out in December A summary of questions and comments can be found in Table 2.1. Table 2.1: Summary of Public and Stakeholder Comments from PIC #6 ID Comment Project Team Response 1 It is a great disappointment that with an expenditure of $1 billion the main effect on the 401 is to move the jam up from Brock Road Pickering to the new interchange. No collectors through to Oshawa equals continued log jams on the 401. Durham approaching 1 million population will continue to be underserviced. Brock Street Whitby will continue to be overloaded. Suggestion: No toll on the Link to ease the traffic on the 401. MTO is currently working on longterm plans for improvements to Highway 401 throughout the Region of Durham, including widening to a corecollector system up to the West Durham Link, with a basic 10lane section proposed east of the Link. Submission of an Environmental Study Report to the Ministry of the Environment and Climate Change for approval is currently scheduled for early 2015 and details of the proposed configuration can be viewed on the project website at: While there is no scheduled construction date

47 Design and Construction Report #6 45 of DRRCGPR ID Comment Project Team Response for this work, MTO will monitor traffic operations once the West Durham Link opens and develop a plan for these improvements over the next 1020 years. 2 My concern is about the sound barrier on the 401 North side. I m concerned that it might not extend far enough west to suppress the noise spilling east toward Flemmington Court. As well as the height of off ramp making the sound spill over the barrier toward residences. Also, is there a review process after construction to ensure sound attenuation levels have been met? 407 East Development Group was contractually obligated to remove the noise attenuation barrier in place when the project was awarded (in order to relocate Highway 401 to the north), and replace that barrier with one of the same height and length. This obligation is being addressed in the designs presented at the Public Information Centre. The new barrier is being constructed on the new highway platform for the relocated Highway 401 lanes, so it will be the same height as the preexisting barrier relative to the noise source. In the postconstruction period, 407EDG will retain its current Complaint Protocol provisions for responding to questions and concerns regarding noise. 3 Thank you for the information provided this evening. I would like to know if a traffic light is being planned for the entrance to Almond Village? 4 1) Durham Region has a cycling plan which notes Dundas, Rossland, Taunton, plus others as major network EW roads to have in the future multiuse or bike lanes on these roads. Are the 407 West N/S Link roads/bridges designed with this in mind? 2) Whitby cycling plan (2010) indicates 2 additional trails North of Dundas and South of Rossland, plus one South of Taunton and Norht of Rossland (attached) Are tunnels being included in the West link to make future possible? When MTO conducts an Environmental Assessment to widen Highway 401, additional noise analysis will be conducted. MTO will specifically examine the west end of the new noise barrier. The noise analysis and recommendations will be brought to the public at that time. The traffic forecasts for this intersection do not warrant signals at this time. 1) WDL crossings at Dundas, Rossland, Taunton and Hwy 7 all include at least 2.5 metre wide paved shoulders that will accommodate cycling. The Taunton Road crossing actually includes a 2.5 metre bike lane. 2) The proposals in the Whitby Cycling and Leisure Trails Plan (June 2010) (CLTP) show proposed boulevard multiuse path (MUP) crossings of the West Durham Link (WDL) (one between Dundas and Rossland and one between Rossland and

48 Design and Construction Report #6 46 of DRRCGPR ID Comment Project Team Response Taunton), both in conjunction with a potential upgrade crossing. We interpret this to mean that the MUP will be in the boulevards of new road crossings of the WDL proposed by the Town of Whitby likely extensions of Bonacord Avenue and Twin Streams Road (with the appropriate grade separated crossing of the WDL), as shown conceptually in the Town s Transportation Master Plan (as modified, June 2010). These crossings are not contemplated in the East Phase 1 scope. The CLTP also shows a proposed trail/walkway with potential upgrade crossing of the WDL in the existing hydro corridor north of Taunton Road. No tunnels for future trails crossing the WDL at this location have been included in the scope. 5 Would it be possible to send us an enlarged map of the fencing that the MTO told us they will be putting up, precisely along the expropriated land, exactly joining our property. We would also like a map of the finished landscaped large pond being dug just north of us. Would you also include the name of the head person in charge of the fencing plans. We just found out that the Brooklin Gateway bridge enhancements and pictures that were set up at the Tottem, Sims and Hubicki workshop have been cancelled. We feel out time and effort has been wasted. Could a representative of AECOM find the picture and information of John Vipond the Warden of Ontario County in 1904 and breeder of Clydesdale horses that we submitted. We don t remember what the writeup was, would you please send us a copy. Did AECOM hold a public meeting regarding the decoration of the Brooklin Gateway Bridge and North Oshawa Gateway Bridge? The Simcoe Street North Gateway Bridge was drafted with horses in memory of Northern Dancer owned by E.P. Taylor Farm who put Oshawa on the world map. Why was it cancelled?. We received no notice of any public meeting for public input. With respect to the mapping and information related to fencing, landscaping and wells, please contact Ian Upjohn, 407 EDG Environmental Director at (416) Ext and he will follow up with your request. A Community Value Plan (CVP) was developed during the Environmental Assessment (EA) showing an example of bridge embossment to initiate discussion with the public. Through consultation with the Williams Treaties First Nations on aboriginal commemoration, there was a preference to have aboriginal symbols on the Simcoe Street bridge in particular, to pay tribute to their traditional territories. It was appropriate to have embossed symbols reflecting the importance of farming in Durham on the Baldwin Street bridge, in Brooklin. Windfield Farms and Northern Dancer will be recognized on the heritage plaque located at Ritson Road, in Oshawa. A paragraph in the CVP states 'The Simcoe Street bridge was used as an example for architectural enhancement measures with equestrian motifs and special guiderails

49 Design and Construction Report #6 47 of DRRCGPR ID Comment Project Team Response More transparency is required. Regarding our well. Who do we contact if construction alters the water table and affects our well? considered for implementation on the bridge to recognize the history of the adjacent Windfield Farms, home to the famous Canadian race horse, Northern Dancer, and the equestrian community within the Study Area.' No other writeup was prepared and no picture was used. 6 Looking forward to the completion of the 407 extension to Harmony Road and the opening of Anderson Street in Brooklin summer Thanks for information 7 Thank you for holding this session. I would like confirmation that chain link fencing and planting (trees, shrubs, grasses as per plan) will be put in place after Anderson St. is finished and reopened. I would also like to know what visual barriers will be in place for traffic travelling the Anderson Street overpass. Currently my 2 nd floor windows are at eye level with the top of the overpass. 8 Please provide a credible schedule. Preferably page 6. 9 I would like to see Heritage Lighting on the Baldwin Street bridge. An example would be that which is on Hwy 75 at Clarkson exit in Michigan. 10 Concerns are: 1) Drainage from Bridle Road South running east and from Wilson Road North running westboth meet at Ritson Road and may cause flooding in a bad storm. 2) Drainage from the west side of Ritson Road The commitment in the EA was for all CVP measures to be subject to additional consultation during Detailed Design, and PIC # 6 was held to ensure this commitment was met. Furthermore, each municipality has an opportunity to comment on the CVP measures. Duly noted. The edge of the rightofway will be fenced adjacent to your subdivision. The side slope of the approach fills to the Anderson St. bridge will be planted with a row of trees that will create a visual screen. All areas disturbed will be seeded. 407 East Development Group is contractually obligated to have the East Phase 1 Project completed and open to traffic by December The forecast traffic volumes on Baldwin St. do not meet the criteria warranting illumination on this crossing. However, we will explore the opportunities for heritage lights to fulfill partial illumination requirements at ramp termini or at the commuter parking lot. 1) Our drainage designs have been based on hydraulic modelling that looks at the entire watershed, so we believe it will perform satisfactorily. 2) The drainage from the west side of Ritson Rd. will all be routed via culverts and

50 Design and Construction Report #6 48 of DRRCGPR ID Comment Project Team Response to the east side of Ritson Road (do not see a culvert). 3) Hydro lines on Ritson Roadwill they go under the bridge or over the bridge or undergroundthey supply hydro to our house. 4) I have concerns about our well water. They have been pumping and draining 4 drilled wells 24/7 for the last months and digging deep bridge footings. The bridge area was swamp land and is now dry enough to take heavy machinery and is 30 to 50 feet lower than my property well. I am concerned that our well may run out of water in a dry season. This year has been very wet and we have not had any problem with running out of water. I would like some assurance that we will not have any trouble, as our well is only about 22 feet deep and is a tiles or dug well. 5) I have just found out that the area to the south of us will not be reforested and I have trouble with the grading and drainage issue, plus the removal of old trees push up in front of our property to about 150 ft of our property line are they going to remove these trees? ditches to a new stormwater pond on the south side of, west of Ritson Rd. 3) The hydro service will be carried underground in a ductbank to cross, but will be carried on a relocated aerial pole line both to the north and south of the highway corridor. 4) We have been drawing down groundwater at the bridge structure to facilitate construction of the bridge foundations, and have been monitoring local wells to ensure that there is no adverse impact to water levels. Our records show that you elected not to participate in the well monitoring program. There have been no water quantity issues identified to date, and all dewatering will be complete by spring ) This area will be revegetated in The trees will be dealt with prior to the revegetation First Nations Consultation Engagement with First Nations began at the start of the EA study for the Project and has been ongoing. 407EDG is responsible for public and stakeholder consultation throughout the design, construction, operations and maintenance phases of the Project, with the exception that MTO retains responsibility for Aboriginal communications and consultation. The following First Nation communities were notified of PIC #6: HuronWendat First Nation Scugog First Nation Alderville First Nation Rama First Nation Hiawatha First Nation

51 Design and Construction Report #6 49 of DRRCGPR Curve Lake First Nation Chippewas of Georgina Island First Nation Beausoleil First Nation MTO met with HuronWendat First Nation representatives on February 19, 2012, May 13, 2013, September 11, 2013, January 13, 2014, April 15, 2014 and November 13, 2014 to provide an update on the Project and discuss aboriginal commemorative installations along the highway. On February 25, 2013 and May 26, 2014 MTO and 407EDG held a meeting with the Williams Treaties Group First Nations in a workshop forum to develop the details related to the Aboriginal commemorative installations at the Simcoe Street Bridge. MTO continues to communicate with First Nations as the design and construction proceeds on the Public and Stakeholder Input to Detail Design Input received from the public and stakeholders has been reviewed and considered by the Project team in finalizing the proposed work presented in this DCR. As a result of public and stakeholder consultation to date, and the review process undertaken, no significant changes to the Detail Design of the works in this DCR are proposed at this time. It should be noted that further design refinements to finalize the elements in the Community Value Plan, as described in DCR #6, such as gateway features and heritage commemorative signage, are currently ongoing in consultation with municipalities.

52 Design and Construction Report #6 50 of DRRCGPR DETAILED DESCRIPTION OF THE RECOMMENDED DESIGN 3.1. Community Value Plan Overview of the CVP Process During the EA, a Proactive Involvement Plan (PIP) was developed as part of the project s consultation process. The PIP included a number of objectives and principles that were designed to aid MTO in facilitating effective, proactive and continuous stakeholder involvement. One of the processes developed through the PIP was the Community Value Plan (CVP). The CVP process allowed more engagement between MTO and stakeholders and provided additional opportunities for active participation in the project design. Stakeholders were invited to provide input and share their knowledge about the unique community values and features adjacent to, or within close proximity to the transportation corridor. The CVP was developed through a series of workshops hosted by MTO. This process established a broad range of historical, environmental, social and environmental features. Based on comments and input received through the CVP workshops, MTO was able to identify opportunities to improve the transportation corridor design, within its rightofway (ROW) limits, through the inclusion of additional mitigation and enhancement treatments to be carried forward into the detail design of the project. The outcome of the CVP process was the creation of a CVP Plan for the entire 407 East Transportation Corridor. The recommendations became part of the preliminary design plans and these were presented to agencies, stakeholders and the public at the final round of public information centres for the EA, for further comment and refinement. The CVP process and final recommendations are documented in the CVP Report that forms part of the EA Community Identified Values and CVP Themes At the workshop held by MTO during the EA, the following list represents the initial community values and features identified: Natural areas including wetlands, forests and streams; Quietness and darkness at night; Close to nature and wildlife; Agricultural and farming community; Protection of environmentally sensitive areas; Heritage homes and farms;

53 Design and Construction Report #6 51 of DRRCGPR Community pride; Rural landscapes and vistas; Historic villages and sites; Slower pace; and Open spaces. Concentrating on specific areas along the corridor, participants were asked to focus on issues that they would like addressed and make suggestions on possible enhancements they would like to see. These are identified in Table 3.1. Table 3.1: Areas of Interest, Concerns for Consideration, Enhancement Measures Issues and Concerns for Areas of Interest Area of Interest Issues/Concerns Enhancement Measures to Consider Almond Village visual and sound issues prefer berms, landscaping, aesthetics West Whitby community visual and sound issues, wildlife corridor, recreational trails, local road realignment preserve topography; maintain Lynde Creek, animal paths along valley; maintain pedestrian access Brooklin reforestation, visual and sound issues prefer berms, landscaping, leave wooded area around valley, reduce lighting Brooklin approach/entrance to the community signage, incorporate heritage features of community, landscaping, gateway feature Simcoe Street bridge decoration, preservation of signage, incorporate heritage and farming Ritson Road/ Harmony Road heritage/community features wildlife crossings, Oak Ridges Moraine, snow drifting, fog, visual impacts, recreational trails features, preserve buildings, landscaping maintain access to creek systems, fence highway, use extra lands for mitigation, plantings for weather A variety of mitigation and enhancement measures were identified for application at various locations throughout the corridor. The mitigation and enhancement measures were grouped into seven broad CVP themes: Universal Measures Universal Measures consist of a variety of mitigation and enhancement strategies that could be applied throughout the corridor such as using low maintenance and salt tolerant plant species; naturalizing the appearance and function of stormwater management ponds and using animalfriendly fencing.

54 Design and Construction Report #6 52 of DRRCGPR Landscape Screenings Landscape Screening provides a screening effect for aesthetic purposes, as well as providing sound and visual mitigation. They include: planting berms, using trees and shrubs to disguise slope and ramp fills; plantings to soften the look of noise barrier structures; and using dense coniferous hegderows to protect against wind, salt spray and snow drift. Gateways Gateways visually enhance the approach to a community located along the transportation corridor. They can be built to reflect community, municipal and regional values; include the use of signs with themed elements, with complementary plantings. Architecture Enhancement Strategies Architecture Enhancement Strategies are used on road related structures to complement the landscape character or local community. They may include using decorative signage on bridges and using themed motif or precast liners on bridges. Local Heritage Strategies Local Heritage Strategies recognize the importance of local heritage and cultural resources in a community. They can include the use of themed signage and other elements to reflect heritage character; and buffering measures to protect heritage elements. Wildlife Crossings Wildlife crossings were refined to ensure the safe movement of animals across the corridor. They can include the use of wildlife funnelfencing to guide animals to and through the crossings; specially designed structures for wildlife passage; and plantings that provide food and cover at the crossing locations. Wetland Restoration Measures Wetland Restoration Measures were considered in environmentally significant areas. They can include: restoring lands back to wetland habitat; using native species to simulate natural succession; using salt tolerant species to buffer wetland areas; developing opportunities for educational and recreational use Detail Design of CVP MTO included a commitment to further develop and finalize the CVP as commitment of the EA to ensure the highway is developed with the additional mitigation and enhancement treatments as visualized by the community. The development of the CVP to a detail design level and implementation of the mitigation and enhancement elements in the plan is the responsibility of

55 Design and Construction Report #6 53 of DRRCGPR EDG in accordance with the Project Agreement (PA) with the Province to design, build, finance and maintain. The CVP developed by MTO identified areas of concern and interest to local residents. 407EDG has reviewed the preliminary mitigation treatments identified in the CVP and through the Detail Design Phase has builton the mitigation measures to fully address EA commitments and the values and features of interest to the community. The following sections provide an overview of the CVP developed during the Detail Design Phase for the Project. The full CVP document in its entirety is available for review electronically from the Project website and at 407EDG s Project Office Landscape Plan and CVP Design Elements Ecological Restoration Approach To build on the CVP, 407ECGP has adopted an ecologicallyintegrated design focus for the landscape planning related to the CVP design elements. This ecological based approach employs a range of restoration and aesthetic enhancement strategies that maximize the potential for natural habitat regeneration and increased biodiversity, through ensuring the establishment of native vegetation communities, ecosystem linkages, and conservation of local heritage values. In order to improve the overall success of vegetation restoration within the highway ROW and on the Project Lands, and to achieve the diverse objectives of the Project, an integrated approach is being used to merge elements of landscaping with ecological restoration. Landscape Plans are therefore based on the following principles for conservation of ecological values in the following order of priority, to the greatest extent possible: 1. Protection (by avoidance and/or mitigation); 2. Restoration; and 3. Enhancement. The following principles and objectives have guided the planning, design and implementation of the landscape and ecological restoration approach applied to the CVP themes and design elements: Preservation of the predominately rural character of the landscape; Preservation of existing topography and blending of corridor grades into the existing site situations, such as creating and/or maintaining view sheds; Use local sourceidentified wildtype native plants for both landscaping and ecological restoration components of the Project. Develop vegetation restoration plans within the corridor (e.g., valley lands, stream riparian areas, embankment areas, landscape screenings, forest edges) and in adjacent

56 Design and Construction Report #6 54 of DRRCGPR compensation areas to emulate the natural character of local plant communities and restore the features and functions of forests, thickets, wetlands, and meadows. Use ecological restoration templates in planning and implementation of design elements to effectively restore vegetation communities that have the richness, resiliency and redundancy characteristics of natural sustainable ecosystems. Establish native plant communities (herbaceous layer) as an alternative to exotic grasses and legumes for groundcover in the roadside environment, wherever possible, which increases the survival of trees and shrubs in the highway corridor. Establish native species coupled with the removal of nonnative/invasive species. Use a palette of robust, diverse, native plant species that are suitable for the CVP design elements/themes, with consideration of sustainable low maintenance solutions for a variety of difficult environs (e.g., dry areas, areas of poor drainage, salt spray areas, etc.) and also performance with regards to long term erosion control and slope stability. Enhancement of stormwater management pond landscapes to achieve ecological features and functions, while adding to the aesthetic quality of the corridor CVP and Landscape Design Components The CVP encapsulates the social features (noise, visual, aesthetics, cultural heritage, etc.), as well as landscaping and ecological restoration components of the Project. The design and implementation of CVP and landscape design elements within the highway ROW limits include mitigation and enhancement treatments that focus on addressing the 7 broad themes identified in the conceptual CVP. The CVP and landscape design elements for each of the CVP themes are as follows: Universal Measures (Applied Throughout Corridor) o o Gateway Features o Use of native tree, shrub and groundcover (grass) species to restore areas within the corridor, including use of salt tolerant species (e.g., Salt Screen Areas) in vulnerable salt spray areas. Landscaping of the 32 stormwater management ponds for the highway with the objective to naturalize their appearance, as well as to promote shade and cooler water temperatures. Local gateway features for the communities of Brooklin and Columbus through the use of signage and plantings.

57 Design and Construction Report #6 55 of DRRCGPR Bridge Architectural Enhancements o Local Heritage o o Wildlife Crossings o o o Design of bridge architectural enhancements at Baldwin Street through the use of embossment of images to reflect an agricultural heritage theme, and at Simcoe Street with cultural/spiritual images of significance to Seven First Nations of the Williams Treaties, as an Aboriginal commemorative feature. Design and implementation of local heritage commemorative sites to reflect Settlement, Agriculture, Industry and Transportation themes near the Hamlet of Greenwood, the Oshawa North area, the Village of Brooklin, and Almond Village, respectively; as well as an Aboriginal themed commemorative site in the City of Oshawa. Design and implementation of heritage streetscape plantings at eleven (11) municipal road crossings to replicate the rural cultural landscape surrounding the highway corridor. Design and construction of 33 wildlife passage structures at watercourse crossing features (culverts, bridges) and 2 dry culvert structures dedicated for wildlife conveyance to maintain a connection among a variety of terrestrial and aquatic wildlife habitats. Design and installation of two (2) types of wildlife fencing to direct/funnel wildlife to the wet and dry wildlife passage structures. Design and installation of wildlife escape ramps as measures to allow wildlife trapped in the transportation corridor to safely escape. Forest and Wetland Restoration o o Design and construction of vegetation restoration and compensation, outside the highway corridor on Project Lands (documented in the Vegetation Compensation and Replacement Ecological Restoration Plan VCRER), to meet the EA commitments. This includes: Restoring/recreating ha of forest and 12.5 ha of wetland at a compensation ratio of 1:1 for the direct removal of vegetation; Implementation of Overall Benefit activities for Species at Risk (SAR) through ecological restoration as a condition of the Endangered Species Act Permits for Butternut, Bobolink, Eastern Meadowlark, Barn Swallow and Redside Dace. This

58 Design and Construction Report #6 56 of DRRCGPR includes the creation of forests and wetlands, as well as for SAR such as Bobolink and Eastern Meadowlark the creation of graminoid meadow type habitat. Overview of Key CVP and Landscaping Design Elements A summary of select key CVP and landscape design elements are described below. Design components in the CVP, including landscaping treatment and enhancements, are detailed in the design drawings contained in Appendix A. Visual Rural Screenings Landscaping strategies have been used to provide a screening effect for aesthetics, as well as providing sound and visual mitigation in order to address community issues and concerns. These objectives were primarily achieved through the use of the following techniques: Planted berms; Trees and shrubs to disguise and naturalize highway embankment slopes and ramp fills; Landscaping to buffer adjacent residential areas; Plantings to soften the look of noise barrier wall structures; and Dense coniferous hedgerows to protect against wind, salt spray and snow drifting. Berms of variable height with 3:1 or 2:1 horizontal to vertical side slopes and minimum 2 m wide flat tops are strategically located along the 407 to provide visual/noise screening. Berms in some cases will be contoured and/or undulating to lessen slopes for visual blending to the surrounding landscape. Aesthetic enhancements for berms will include the use of native meadow species seed mix, and the use of trees and shrubs, with due regard to creating texture and colour. The CVP includes vegetation screenings adjacent to residential and rural areas to act as a visual and/or noise buffer and, in select locations, to protect against wind/snow drifting. Vegetation screenings will consist of dense, mass plantings of deciduous and coniferous tree and shrub species, such as White Spruce, Eastern Red Cedar, Common Hackberry, Black Walnut, Bur Oak, Choke Cherry and Snowberry. Visual/Noise and/or rural screenings are to be planted along the mainline at: Sideline 14; Salem Road; Sideline 4; Kinsale Road;

59 Design and Construction Report #6 57 of DRRCGPR Coronation Road; Country Lane; Baldwin Street; Anderson Street/Thickson Road North; Between Thorton Road and Simcoe Street; Winchester Road; Simcoe Street; Ritson Road; and Wilson Road. Visual/rural screenings are also proposed along the WDL at: Dundas Street East; Highway 401 and WDL Interchange; Lake Ridge Road (eastside north of Highway 401); and Halls Road. Dense plantings will be utilized for visual screening of the transportation corridor from sensitive receptors, particularly the community of Almond Village, Halls Road (at Dundas Street) community, and the community of West Whitby. Gateway Features Gateway features visually enhance the approach to a community. This type of treatment can be designed to reflect community, municipal, and regional values. The gateway features for the Project include primarily signage and plantings, consisting mostly of native ornamental and salt tolerant species. Local community gateway features have been developed for the City of Oshawa and Town of Whitby. The gateway feature for Oshawa is to be located along the east side Simcoe Street just north of East, as entry to the Village of Columbus (City of Oshawa). As well, a local gateway feature for Whitby is to be located along the east side of Baldwin Street, just north of the as entry to the Village of Brooklin. The gateway features for the Village of Brooklin (Town of Whitby) and Village of Columbus is illustrated in Exhibit 3.1. As part of the Brooklin/Town of Whitby gateway feature along East, there was opportunity to meld bridge architecture at the Baldwin Street Bridge with local heritage elements

60 Design and Construction Report #6 58 of DRRCGPR This design approach was also adopted for the Oshawa gateway feature, with consideration of, and complementary to, the aboriginal commemorative element on the Simcoe Street Bridge. Gateway features at both sites also include broader enhancement plantings, such as woodland plantings in the Baldwin Street Interchange loop ramps, and plantings at stormwater ponds. A gateway feature has also been developed specifically for the urban area of Brooklin within the municipality of Whitby at the interchange of Baldwin Street and East. The gateway feature for the Village of Brooklin includes signage on an elevated graded platform, along with the use of native grasses, trees and shrubs to add visual prominence approaching the community. The signage element of the gateway features will be approximately 2 m above grade with display dimensions of approximately 3 m high by 6 m wide, supported on brick masonry with surrounding complementary planting beds. The gateway feature for the Village of Brooklin (Town of Whitby) is illustrated in Exhibit 3.2. Exhibit 3.1: View of Local Gateway Features for the Village of Columbus and Village of Brooklin

61 Design and Construction Report #6 59 of DRRCGPR Exhibit 3.2: View of Brooklin/Town of Whitby Gateway Feature at Baldwin Street and Interchange Local Heritage Commemoration Local heritage strategies have been developed to recognize the importance of agriculture, industry, transportation and historic settlements to the communities in the study area. Historically, the study area was largely farmland settled in the late18th to mid19th century, characterized by a land grid pattern of the late18th century which was originally surveyed into 200 acre lots with a system of concession and sideline roads. Crossroads, hamlets and villages arose across this grid, often where milling operations were established. Within the East Phase 1 area, the historical communities included Brougham, Greenwood, Kinsale, Brooklin and Columbus. Heritage design elements and features for the Project include: Adaptive reuse of salvaged materials from heritage structures (e.g., foundation stones and bricks) for installation at heritage commemorative site(s) within the highway corridor and/or Project Lands; Use of themed signage, with consistent sign design standards applied throughout the corridor at commemorative sites and commuter parking lots; Bridge architectural enhancements; and Heritage streetscape plantings. Six local heritage commemorative sites have been developed for the Project. Figure 31 shows the location of the six heritage commemorative sites and the following provides a synopsis of the main historical characteristics and themes applied at the four 407EDG heritage sites, along with a description of the heritage design elements/features planned as part of the CVP. Heritage commemorative sites (e.g., text for heritage signs/plaques) are currently being

62 Design and Construction Report #6 60 of DRRCGPR finalized in consultation with local municipal representatives in the City of Pickering, Town of Whitby and the City of Oshawa.

63 Brock Road Sideline 16 Road Church Street North Harwood Avenue North Audley Road Halls Road North Concession Road 7 Columbus Road West Columbus Road East!( hitevale Road Brock Road Paddock Road!( Concession Road 6 PICKERING Westney Road Concession Road 5 Salem Road Highway 7 Kinsale Road Lake Ridge Road Country Lane Winchester Road West Baldwin Street!(!( Garden Street Thickson Road North Conlin Road Thornton Road North!( Simcoe Street North!( Ritson Road North Winchester Road East Harmony Road North n Road 4 Taunton Road West Coronation Road WHITBY OSHAWA CP Rail Brock Street REGION OF DURHAM oncession Road 3 Rossland Road Rossland Road East AJAX inch Avenue Kingston Road West Kingston Road East Dundas Street West Dundas Street East King Street West King Street East ingston Road Highway 401!( GO Transit / CN Rail Legend!(!(!( Local Heritage Commemorative Sites Local Heritage Commemorative Sites (work by MTO) Aboriginal Commemorative Sites (work by MTO) Harwood Avenue South Proposed Hwy 407 Route Railway Roads µ km 407 Local Heritage Commemoration Date: January 22, 2015 File Number: Sub Code: 0000 Figure: 31 Path: Z:\011712Hwy407\407 Organized\Local Heritage Commemorations\MXD\LocalHeritageCommemorativeSites_Dec2014.mxd

64 Design and Construction Report #6 62 of DRRCGPR City of Pickering (Hamlet of Greenwood) Installation of local heritage interpretative signage to be located adjacent to the Paddock Road culdesac, where the road is to be closed immediately north of the East. The recommended theme for the commemorative site in the City of Pickering is historic settlement of Greenwood. This site will include a doublesided sign supported on wooden posts/beams to capture the attention of pedestrians, cyclists and other passive recreational users in the area. The sign will be located near the termination point of Paddock Road at East in close proximity to the existing Trans Canada Trail crossing. The signage will include text and maps/images of the former historic settlement of Greenwood in the Region of Durham near East. Town of Whitby (Village of Brooklin) Installation of local heritage interpretative signage at the commuter parking lot area in the southwest quadrant of the Baldwin Street/Highway 407 Interchange; and use of bridge architectural enhancements at the East/Baldwin Street Bridge. The recommended heritage theme for the commemorative site in the Town of Whitby is industry, such as sawmills, etc. and its historic role in servicing agricultural communities. Architectural bridge enhancement with a local heritage theme will be applied to the Baldwin Street Bridge. This includes the use of a themed motif of decorative embossments on the bridge. Based on background research, it is proposed that a wheat sheaf and millstone/grindstone motif be installed with concrete embossments on the Baldwin Street Bridge parapet walls and abutment wing walls. The design of the concrete panel motifs on the bridge will meet the requirements of the Canadian Highway Bridge Design Code and has considered the technical requirements needed to install the artwork, so as to not compromise the bridge s strength, serviceability, maintainability, functionality or durability. A graphic rendering of the bridge architectural enhancement is displayed in Exhibit 3.3.

65 Design and Construction Report #6 63 of DRRCGPR Exhibit 3.3: Local heritage themed motif on Baldwin Street Bridge Town of Whitby (Almond Village) Construction of a cairn, using stones salvaged from heritage structures, with a local heritage interpretative plaque, to be located in an open space area east of Lake Ridge Road and south of Almond Avenue (Refer to Figure 31). The recommended heritage theme for the commemorative site near Almond Village in the Town of Whitby is the historic transportation network (roads, rail, etc.) that contributed to local economic development in the area and historic Village of Almond. Two heritage commemorative elements will be created to reflect the above themes. This would include the construction of a pyramidal cairn to act as a monument/landmark with inclusion of a historical interpretative plaque affixed to the structure. The cairn is proposed to capture the interest of pedestrians and cyclists in the local community. An example of a typical commemorative cairn, with a plaque is shown in Exhibit 3.4.

66 Design and Construction Report #6 64 of DRRCGPR Exhibit 3.4: Example Photo of the commemorative Glengarry Landing Stone Cairn in Glengarry, Ontario City of Oshawa (Oshawa North, Local Heritage Theme) Installation of local heritage interpretative signage, with a stone seating area located just east of Ritson Road and north of the /Ritson Road Overpass/Bridge within the open space/floodplain area of Oshawa Creek East Branch. The recommended heritage theme for the commemorative site in City of Oshawa is Agriculture. The commemorative element proposed at this location includes local heritage interpretative signage and a field stone seating area, with the purpose to capture the attention and interest of pedestrians, cyclists and drivers along Ritson Road. City of Pickering Installation of heritage commemorative signage at commuter parking lot at Brock Road (work by MTO). City of Oshawa (Aboriginal theme) Installation of aboriginal signage at the commuter parking lot in the northwest corner of Simcoe Street and Winchester Road (work by MTO). Heritage Streetscapes Heritage streetscape planting designs have been developed to replicate the rural cultural landscape of the local area surrounding the East corridor. Heritage Streetscape plantings are

67 Design and Construction Report #6 65 of DRRCGPR proposed alongside select municipal road crossings of the highway and include random offset and spacing of native trees and shrubs, with a groundcover seed mix of grasses, sedges and forbs to form a cultural meadow community. Trees to be planted are generally of larger stock size compared to other landscaped areas, and include such species as Freeman Maple, Red Oak, American Basswood and Princeton Elm. Heritage Streetscape landscaping plantings are proposed at the following municipal road crossings associated with the Project. Sideline 14; Westney Road; Salem Road; Lake Ridge Road; Coronation Road; Cochrane Street; Ashburn Road; Thickson Road; Thornton Road; Winchester Road; and Harmony Road. Aboriginal Commemoration Engagement with Aboriginal groups began at the start of the EA study and has been ongoing. MTO retains responsibility for First Nation communications and consultation and is committed to a continued, open dialogue with First Nation communities. As part of the CVP, and ongoing discussion with First Nation communities during the Detail Design phase for the project, an opportunity for Aboriginal commemoration at the Simcoe Street and interchange was identified. A series of workshops with the Williams Treaties Group of First Nations has been held to further discuss and develop the details related to the Aboriginal commemorative installations on the Simcoe Street Bridge and within the interchange area, such as the commuter parking lot at Simcoe Street and Winchester Road. On the Simcoe Street Bridge, the intention is to have Aboriginal commemorative images of cultural significance on the bridge deck parapet walls and bridge abutment wing walls on both sides of the

68 Design and Construction Report #6 66 of DRRCGPR structure. The architectural enhancement or commemorative images will be embossed (embedding design elements into the fabric of the bridge). In keeping with the Aboriginal theme at the Simcoe Street Bridge, traditional plantings have also been specified within the interchange area, with input from Aboriginal communities on appropriate traditional cultural and/or medicinal plant species of importance. The incorporation of landscape design elements to complement the required Aboriginal commemorative installation at the Simcoe Street Bridge was identified by MTO in the Final Aboriginal Commemorative Installation Strategy (July 2011). The aboriginal commemorative images that have been adopted for the Simcoe Street Bridge, in consultation with the seven First Nations of the Williams Treaties, include Turtle, Medicine Wheel, Seven Feathers, and Braid of Sweet Grass with an Eagle Feather. A graphic rendering of the Aboriginal commemorative images for the Simcoe Street Bridge is displayed in Exhibit 3.5. An explanation of the cultural/spiritual significance of the Williams Treaties Group commemorative images will be displayed in a signage installation located at the commuter parking lot at Simcoe Street and Winchester Road. Exhibit 3.5: Rendering of the aboriginal commemorative images proposed for the Simcoe Street Bridge

69 Design and Construction Report #6 67 of DRRCGPR Wildlife Crossings, Directional Fencing and Escape Ramps A significant portion of the wildlife mitigation strategy for the Project is dedicated to the design and construction of 35 wildlife crossings. There are 2 dedicated (dry) wildlife passage structures being constructed within the transportation corridor (Crossings 43A and 43B). The designated wildlife structures are being constructed along the WDL, and will serve to maintain a connection among a variety of terrestrial and aquatic wildlife habitats. Other wildlife crossings include bridge and culvert sites that will be constructed to convey water and allow for safe wildlife passage. The goal of the wildlife passage system is to provide designated corridors to facilitate the movement of wildlife. The size and placement of the crossing structures, directional barrier fencing and habitat features found within and adjacent to the crossing structures are integral for reducing road mortality and facilitating movement through designated corridors. Directional funnel fencing will be constructed along with the objective to exclude wildlife from the transportation corridor and redirect animals to the wildlife passage structures. The location of funnel fencing has been determined on a sitespecific basis and in association with the limits of the wildlife passage structures and nature and extent of landscape alterations. There are two types of funnel fencing that will be installed for the Project. Type 1 Large and Small Exclusion Fence designed for large wildlife (e.g., whitetailed deer) and small wildlife such as amphibians and reptiles. The fencing will be 2.4 m high, with a fine wire mesh affixed and trenched below the ground to act as a barrier to small wildlife. Type 2 Small Exclusion Fence designed for a variety of small wildlife, such as amphibians, reptiles and small mammals. The fencing will be 1.35 m high with a fine wire mesh (opening size of ¼ by ¼ inch) affixed and trenched below the ground to exclude small animals from accessing the highway corridor. As identified in the EA, earth escape ramps are proposed to provide provision for wildlife, especially ungulates, trapped within the lands to safely exit the lands. Ramps will be constructed of earth materials with gradual 3:1 slopes and stabilized with a native seed mix. Where possible, escape ramps will be placed near natural cover. Escape ramps will be located near the wildlife structure, with ramps placed at 400 m to 800 m intervals, depending on site and adjacent habitat conditions.

70 Design and Construction Report #6 68 of DRRCGPR Summary of Community Interests/Concerns and CVP and Landscape Design Elements As previously cited, the CVP was developed through a series of workshops hosted by MTO, as part of the Proactive Involvement Plan and enhanced consultation process adopted during the EA, which has continued as part of the Detail Design phase for the Project. A summary of the EA commitments related to community values and areas of interest as identified through the CVP process, along with the mitigation and enhancement treatments are presented in Table 3.2. In the table, community areas of interest/ea commitments and proposed treatments are organized by highway design segment, with specifics on the treatments/enhancement measures to be implemented to address community issues and concerns. Figure P4 provides a Key Plan showing the highway design segments for reference. Table 3.2: Summary of Landscape/CVP Design Elements Highway Segment Location A1 Hwy 407/ Sideline 14 A1 A1 A1 A1 A1 A1 E of Sideline 14, Hwy 407 ROW E of Sideline 14, N of Hwy 407 N side of the Hwy 407 east of Sideline 14 SWM Zone, Hwy 407, E of Sideline 14 South side of Hwy 407 North side of Hwy 407 Potential Environmental Effect or Community Area of Interest/Concern Highway construction and grading will result in the removal of vegetation. Visual impact needs to be minimized on both sides of the highway. Visual impact of the bridge needs to be minimized and a terrestrial edge planted. The highway ROW will form the new edge of the terrestrial zone. Loss of habitat and vegetation associated with the Spring Creek crossing and highway grading. Winter winds will blow salt spray into rural lands to the south potentially causing damage to vegetation. Noise affects from the highway on property at 3790 Paddock Road. CVP and Landscape Design Elements to be Implemented Heritage Streetscape plants are to be provided on Sideline 14 bridge approaches to compensate for the loss of vegetation. Landscape plants to mitigate visual impact and provide a solid landscape screen. Rural screen and edge plants are required to mitigate visual impact and provide a solid landscape screen. Enhance terrestrial edge to buffer from salt spray damage, incorporate edge management plants. Ecological plants near wildlife fencing to enhance habitat and cover. Enhancement woodland plants are to be added to areas south of the ROW adjacent to the 2 SWM Ponds. Linear planting of evergreen trees to mitigate the effects of the salt spray on the environment. Required mitigation plantings/berming, where feasible, in accordance with the Noise Mitigation Plan for the subject property.

71 Design and Construction Report #6 69 of DRRCGPR Highway Segment A1 Location East Duffins Creek & Hwy 407 Potential Environmental Effect or Community Area of Interest/Concern Loss of habitat and vegetation associated with the Duffins Creek meander belt corridor. Approach slopes and bridge will require wildlife funnel fencing and plants. A1 Paddock Rd. Access will be restricted at this location. A1 Hwy 407/ Construction and grading will result Westney Rd. in the removal of roadside overpass vegetation. A1 Carruthers Creek Tributaries Hwy407 overpasses A1 Hwy 407/ Salem Rd. overpass A1 N of Hwy 407 at Salem Rd. A1 E side of Sideline 4, N of Hwy 407 A1 N side of Hwy 407, E of Sideline 4 A1 S of Hwy 407, E of Sideline 4 A2 A2 A2 A2 Lynde Creek Tributary/ Hwy 407 overpass Lynde Creek Tributary/ Hwy407 S of Hwy407 both sides of Kinsale Rd. Hwy 407/ Lake Ridge Rd. The approach slopes and bridge abutment structures will require wildlife funnel fencing and buffer plants. Construction and grading will result in the removal of roadside vegetation. Visual impact needs to be minimized from the rural properties to the north. Visual impact needs to be minimized and a terrestrial edge to be planted. Noise affects from the highway on property at 3805 Sideline 4. Visual impact needs to be minimized from the rural properties to the south. The approach slopes and bridge structures will require wildlife funnel fencing and buffer plants. Loss of habitat and vegetation in associated meander belt corridor. Visual impact needs to be minimized from the rural properties to the south. Highway construction and grading will result in the removal of vegetation. CVP and Landscape Design Elements to be Implemented Restore, and where possible enhance, vegetation communities within the highway ROW. Landscape/ecological restoration plants to enhance the effects of the wildlife fencing and improve the habitat linkages. Woodlot edge management techniques. Trail connection (Trans Canada Trail) under the new bridge. Heritage Streetscape plants at the Westney Rd. bridge to compensate for the loss of roadside vegetation. Landscape/ecological restoration plants to enhance the effects of the wildlife fencing and improve the habitat linkages. Woodlot edge management techniques. Heritage Streetscape plants at the Salem Rd. bridge to compensate for the loss of roadside vegetation. Landscape plants to mitigate visual impact and provide a solid landscape screen. Rural screen and edge plants to mitigate visual impact and provide a solid landscape screen. Visual screening plantings in accordance with the Noise Mitigation Plan for the subject property. Landscape plants to mitigate visual impact and provide a solid landscape screen. Landscape/ecological restoration plants to enhance the effects of the wildlife fencing and improve habitat linkages. Woodlot edge management techniques. Restore, and where possible enhance, vegetation communities within the highway ROW. Landscape plants to mitigate visual impact and provide a solid landscape screen. Heritage Streetscape plantings at Lake Ridge Rd. bridge approaches to compensate for the loss of vegetation.

72 Design and Construction Report #6 70 of DRRCGPR Highway Segment A2 A2 A2 Location Lake Ridge Rd. & Hwy 407 Interchange Hwy 407/ WDL Interchange Hwy 407/ WDL Interchange A2 Hwy 407/ Coronation Rd. A2 Lynde Creek Tributary & Hwy 407 A2 N of Hwy 407, West of Country Ln. A2 S of Hwy 407, West of Country Ln. A2 Road Closure at Country Ln. A2 Lynde Creek Tributary & Hwy 407 A2/ A3 A2 N & S of Hwy 407 Hwy 7 & WDL Interchange Potential Environmental Effect or Community Area of Interest/Concern Loss of habitat and vegetation due to the land area required for the interchange. Loss of habitat and vegetation due to the land area required to accommodate the interchange. Installation of Aboriginal commemorative site with sculpture to commemorate the culture of Aboriginal communities Construction and grading will result in the removal of roadside vegetation. Loss of habitat and vegetation associated with the Lynde Creek valley/stream corridor. Approach slopes and bridge structures will require wildlife funnel fencing and plants. Visual impact needs to be minimized from the rural properties to the south. Noise affects from the highway on property at 6202 Country Lane. Access will be restricted at this location. The approach slopes and bridge abutment structures will require wildlife funnel fencing and plants. Loss of habitat and vegetation associated with the corridor. Visual impact of the highway needs to be minimized from rural properties. Loss of habitat and vegetation due to the land area required to accommodate the interchange ramp and bridge. CVP and Landscape Design Elements to be Implemented Woodland plantings are to be added to areas within the Lake Ridge Rd. & Hwy 407 interchange. Woodland plants are to be added to areas within the Hwy 407 East Mainline/WDL interchange. Plantings and grading platform to be constructed east of SWM Pond 42E by 407EDG, with sculpture to be added by MTO. Heritage Streetscape plants at Coronation Rd. bridge approaches to compensate for the loss of vegetation. Restore, and where possible enhance, vegetation communities within the highway ROW. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Woodlot edge management techniques. Landscape plants to mitigate visual impact and provide a solid landscape screen. Required mitigation plantings in accordance with the Noise Mitigation Plan for the subject property. Landscape to mitigate visual impact of the SWM Pond and ROW limit for properties along Country Lane. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Woodlot edge management techniques will also be applied. Restore, and where possible enhance, vegetation communities within the highway ROW, near the SWM pond. Landscape plants to mitigate visual impact and provide a solid landscape screen. Woodland plants are to be added to areas within the Highway 7/WDL interchange.

73 Design and Construction Report #6 71 of DRRCGPR Highway Segment Location A3 Hwy 407/ Baldwin Street Interchange Potential Environmental Effect or Community Area of Interest/Concern Opportunity to include cultural heritage commemorative at interchange. CVP and Landscape Design Elements to be Implemented Consideration of cultural heritage commemoration for the Village of Brooklin. A3 Lynde Creek Tributary & Hwy 407 A3 Hwy 407/ Cochrane St. A3 Hwy 407/ Ashburn Rd. A3 A3 A3 A3 A3 A3 A3 N & S of Hwy 407, W of Baldwin St. Hwy 407 & Baldwin St Interchange Hwy 407 & Baldwin St. Interchange Baldwin St., S of Hwy 407 Baldwin St., N of Hw407 & W off ramp S side of Hwy 407, E of Baldwin St Lynde Creek & Hwy 407 The approach slopes and bridge abutment structures will require wildlife funnel fencing and plants. Highway construction and grading will result in the removal of vegetation. Highway construction and grading will result in the removal of vegetation. Visual impact of the highway needs to be minimized from the north and south rural properties. Loss of roadside vegetation due to the land area required to accommodate the interchange ramps and bridge. Driver orientation requires additional signage indicating municipal jurisdiction. Noise from vehicles and view of elevated roadway approaching highway interchange. Noise from vehicles and off ramp approaching Baldwin St. Winter winds will blow salt spray potentially causing damage to vegetation and habitat areas. Loss of habitat and vegetation with the Lynde Creek meander belt corridor. Proposed approach slopes and bridge abutment structures will require wildlife funnel fencing and plants. A3 Lynde Creek Pedestrian access from neighbourhood; highway limiting movements. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Heritage Streetscape plants at the Cochrane St. bridge approaches to compensate for the loss of vegetation. Heritage Streetscape plants at Ashburn Rd. bridge approaches to compensate for the loss of vegetation. Landscape plants to mitigate visual impact and provide a solid landscape screen. Woodland plants are to be added to areas within the Hwy 407/Baldwin St. interchange. Gateway signage/features for the Village of Brooklin. Visual/noise screen vegetation to buffer the adjacent property owners. Visual/noise screen vegetation to buffer the adjacent property owners. Linear planting of evergreen trees to mitigate the effects of the salt spray on the environment. Restore, and where possible enhance, vegetation communities within the highway ROW. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Trail connection under the new bridge, vegetation plants to improve habitat along the trail system.

74 Design and Construction Report #6 72 of DRRCGPR Highway Segment A3 A3 A3 A3 Location S side of Hwy 407, W of St Thomas St. Hwy 407 N side between Baldwin St. & Anderson St. Hwy 407/ Anderson St. Hwy 407 W onramp near Anderson St. and Thickson Rd. Hwy 407 & Thickson Rd. Interchange A3 Hwy 407/ Thickson Rd. A3 N of Hwy 407 Thickson Rd. A4 Oshawa Creek West & Hwy 407 A4 Oshawa Creek West & Hwy 407 A4 Hwy 407 at Thornton Rd. & Winchester Rd. A4 S of Hwy 407 of Winchester Rd. A4 Oshawa Creek West Tributary culvert Potential Environmental Effect or Community Area of Interest/Concern Noise from the highway is considered for the property at 200 St Thomas St. Highway noise and visual impact of the new highway on the residential community (Brooklin). Construction and grading will result in the removal of roadside vegetation. The noise and view of onramp traffic needs to be screened from the residential community. Loss of roadside vegetation due to the land area required to accommodate the interchange ramps and bridge. Construction and grading will result in the removal of roadside vegetation. Visual impact of the highway needs to be minimized from the rural properties. Loss of habitat and vegetation with the Oshawa Creek West stream/valley. The approach slopes and bridge abutment will require wildlife funnel fencing and plants. Construction and grading will result in the removal of vegetation. Visual impact of the highway needs to be minimized to the south. The proposed approach slopes adjacent to the culvert will require wildlife funnel fencing and bank stabilization plants. CVP and Landscape Design Elements to be Implemented Visual/noise screening plantings on 5 m high berm in accordance with the Noise Mitigation Plan for the subject property. A noise barrier wall along the highway and clear panel on the bridge over Lynde Creek to mitigate impacts of the highway. Trees and shrubs are to be planted on backside of the wall as an additional buffer for adjacent property owners. Heritage Streetscape plants at the Anderson St. bridge approaches to compensate for the loss of vegetation. Visual/noise screen vegetation to buffer the adjacent property owners. Woodland plants are to be added to the areas within the Hwy 407 and Thickson Rd. interchange. Heritage Streetscape plants at the Thickson Rd. bridge to compensate for the loss of roadside vegetation. Landscape plants to mitigate visual impact and provide a solid landscape screen. Restore, and where possible enhance, vegetation communities within the highway ROW. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Woodlot edge management techniques. Heritage Streetscape plants at the Thornton Rd. and Winchester Rd. bridge to compensate for the loss of vegetation. Landscape plants to mitigate visual impact and provide a solid landscape screen. Native landscape plants to slopes next to the culvert in order to stabilize the steep grades. Planting will also be used to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages.

75 Design and Construction Report #6 73 of DRRCGPR Highway Segment A4 A4 A4 A4 A4 A4 A5 Location N & S of Hwy 407, E of Simcoe St., N to Ritson Rd. Simcoe St./ Interchange W side of Simcoe St./ Hwy 407 Interchange Simcoe St./ Hwy 407 Interchange Simcoe St. Bridge Oshawa Creek E Tributary culvert Oshawa Creek E & Ritson Rd./ Hwy 407 Potential Environmental Effect or Community Area of Interest/Concern Visual impact of the highway needs to be minimized from the rural properties to the south. Loss of roadside vegetation due to the land area required to accommodate the interchange ramps and bridge. Winter winds will blow salt spray to the south potentially causing damage to vegetation. Local Heritage. Aboriginal Commemorative Strategy. The proposed approach slopes adjacent to the culvert will require wildlife funnel fencing and bank stabilization plants. Loss of habitat and vegetation with the Oshawa Creek East stream/valley corridor. Slopes and bridge abutment require wildlife fencing and plants. CVP and Landscape Design Elements to be Implemented Landscape plants to mitigate visual impact and provide a solid landscape screen. Woodland plants are to be added to areas within the interchange. Linear planting of evergreen trees to mitigate the effects of the salt spray on the environment. Opportunity to include community gateway signage/features to be examined. Columbus Historical Community. Bridge Architecture enhancements to be implemented as part of Aboriginal Commemorative Strategy. Landscape plants to slopes next to the culvert in order to stabilize the steep grades. Planting will also be used to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Restore vegetation communities within the highway ROW. Provide landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Woodlot edge management techniques will also be applied. A5 A5 A5 A5 Hwy 407, N side at Ritson Rd. N & S of Hwy 407 to Wilson Rd. Oshawa Creek E Tributary W of Harmony Rd./ Hwy 407 Harmony Rd./ Hwy 407 Interchange Noise from highway traffic requires screening for the residential properties on Ritson Road North. Visual impact of the highway needs to be minimized from rural properties. Loss of habitat/vegetation with the Oshawa Creek East stream corridor. The approach slopes and bridge requires wildlife fencing and plants. Loss of roadside vegetation due to the land area required to accommodate the interchange ramps and bridge. Visual/noise screen plantings within the ROW to buffer the adjacent property owners. Landscape plants to mitigate visual impact and provide a solid landscape screen. Restore vegetation communities within the highway ROW. Provide landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Woodlot edge management techniques will also be applied. Woodland plants are to be added to areas within the interchange.

76 Design and Construction Report #6 74 of DRRCGPR Highway Segment A5 B1 B1 B1 B1 B1 B1 B1/B 2 B1/ B2 B2 B3 Location Harmony Rd. overpass Hwy 401 & WDL Interchange Hwy 401 east of WDL WDL ramps onto Almond Village West Lynde Creek & Lynde Creek Bridge Hwy 401 at Whitby N ROW Dundas St. & WDL Interchange West Whitby & Halls Rd. Community West Lynde Creek corridor & Halls Rd. Lynde Creek Tributary at Rossland Rd. Taunton Rd. WDL Interchange Potential Environmental Effect or Community Area of Interest/Concern Construction and grading will result in the removal of roadside vegetation. Loss of habitat and vegetation due to the land area required to accommodate the interchange ramp and bridge. Highway noise and visual impact of the new highway on the residential community (Whitby). Visual and noise concerns of community from the new highway ramps. Loss of habitat and vegetation continuity at water course crossings. Loss of tree buffer zone and shifting of Hwy 401 to the residential properties along Flemington Crt. & Michael Blvd. Loss of habitat and vegetation due to the land area required to accommodate the interchange ramp and bridge. Visual impact of the highway ramps due to the flat topography. Visual impact of the highway on the rural environment. The proposed watercourse realignment of the tributary will require wildlife funnel fencing and associate plants. Loss of habitat and vegetation due to the interchange and Lynde Creek Tributary Realignment. CVP and Landscape Design Elements to be Implemented Heritage Streetscape plants at Harmony Rd. bridge to compensate for the loss of roadside vegetation. Woodland plants are to be added to areas within the interchange. A 5 m high noise barrier wall will be constructed to replace the existing barrier along the north side of highway from Lynde Creek to just west of Annes Street, a distance of 1057 m. Trees and shrubs are to be planted on backside of the wall as an additional buffer for adjacent property owners. Mitigation will include tree planting and berm to provide a visual screen and address noise concerns. Vegetation plants to restore, and where possible enhance, habitat conditions. Planting enhancements along the riparian corridor will be coordinated with fish habitat restoration and geomorphology for channel stability for the subject Lynde Creek crossings. Tree plants to address removal of vegetation and to enhance the visual screening of the highway. Woodland plants are to be added to areas within the interchange. Landscape plants to mitigate visual impact and provide a solid landscape screen. Landscape plants to mitigate visual impact of the highway and provide a landscape screen. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat of the realigned watercourse. Woodland plants are to be added to areas within the interchange.

77 Design and Construction Report #6 75 of DRRCGPR Highway Segment B3 B3 B3 B3 B3/ A2 A1/A 2/A3 /A4/ A5/B 1/B2 /B3 Location N section of Halls Rd. Lynde Creek Tributary on WDL Wildlife Crossing WDL Terrestrial zone, E of the WDL Windscreen on the W side of WDL SWM Ponds Potential Environmental Effect or Community Area of Interest/Concern Visual impact of the WDL to be minimized from local property. The proposed watercourse realignment of the tributary will require wildlife funnel fencing and associate plants. The proposed structures will require wildlife funnel fencing and associate plants. The highway ROW is located at the edge of the terrestrial zone resulting in potential negative impacts. Evergreen buffer plants to augment wildlife fence plants and address winter wind conditions. Control water quality and storm event quantities prior to discharge. CVP and Landscape Design Elements to be Implemented Landscape plants to mitigate visual impact and provide a solid landscape screen. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat of the realigned watercourse. Planting enhancements along the riparian corridor will be coordinated with fish habitat restoration and geomorphology for channel stability for the subject watercourse crossing. Landscape plants to enhance the effects of the wildlife fencing and improve the habitat and ecological linkages. Enhance terrestrial edge with landscape screening to buffer from potential salt spray damage. Mitigate edge vegetation losses due to grading by incorporating edge management. Additional evergreen wind screen plants along the perimeter of the ROW to address concerns with seasonal winds and blowing snow. Mitigate the effects of warm water entering the pond from the stormwater pond by providing plants around the perimeter of the SWM pond and outlet channel to assist in cooling of storm water during the summer months.

78 Design and Construction Report #5 76 of DRRCGPR Vegetation Restoration Plans Vegetation compensation and ecological restoration for the Project is an environmental commitment outlined in the 407 East Extension EA and associated MOE Notice of Approval, Condition 18; and as a condition of the Permits issued to MTO for Species at Risk (SAR) under the Endangered Species Act (ESA). Specifically, the commitment to vegetation compensation and ecological restoration involves: Restoring/enhancing/creating forest and wetland communities at a ratio of 1:1 for the direct removal of vegetation; and Providing Overall Benefit through ecological habitat restoration activities for SAR as a condition of the ESA Permits for Butternut, Bobolink and Eastern Meadowlark, Barn Swallow and Redside Dace. To address the above environmental commitments, MTO developed the East Phase 1 Vegetation Restoration Plan Framework (VRPF) (May, 2012) as a guide on the initial conceptual restoration plan options for meeting the compensation/restoration requirements for the Project. Building on the VRPF, 407ECGP developed a Vegetation Compensation/Replacement Ecological Restoration Plan (VCRER). The VCRER encompasses individual Detailed Site Vegetation Restoration Plans to provide compensation for the loss of forest and wetland communities, including SAR habitat, which have been developed in consultation with provincial and federal regulatory agencies, and local conservation authorities. The establishment of new forests, wetlands and SAR habitat as compensation will be undertaken on surplus MTO owned lands (outside the highway corridor). These surplus lands, referred to as the Project Lands, are remnant parcels of lands that were acquired by MTO as part of the 407 East project, but which are not directly required for the construction of the highway Vegetation Removals and Compensation for Habitat Loss Vegetation removals identified in the 407 East Extension EA (Phases 1 and 2) included the entire transportation corridor, encompassing the highway and a designated future Transitway. Vegetation removals required for construction of the Project are limited to the area within the highway rightofway, and excludes the future Transitway. As such, the design and implementation of vegetation compensation for the direct removal of vegetation within the Transitway will be undertaken by the Province in the future and is not part of the current Project. As previously documented in DCR #1, the Project will result in a loss of ha of forest and 12.5 ha of wetland. The Project will also require the removal of ha of grassland/graminoid meadow that is considered breeding habitat for two SAR

79 Design and Construction Report #6 77 of DRRCGPR Eastern Meadowlark and Bobolink. Additionally, the works will result in the removal of riparian vegetation/habitat for Redside Dace and 148 Butternuts, both SAR. In order to determine suitable compensation sites for replacement of vegetation, the 407ECGP Team carried out an extensive review and analysis of potential restoration sites identified by MTO. Assessments were undertaken to characterize the existing site conditions and to select and/or confirm appropriate Restoration Objectives for each site. Based on this review and assessment, a final set of compensation/replacement restoration sites were selected for the project. Criteria used in this selection process included but were not limited to the following: 1. Restoration sites were selected on Project Lands identified by MTO as potential restoration sites in the VRPF; 2. Restoration sites were selected with a preference to maximize size and connectivity (linkages) of natural and/or restored habitat areas and linkages; 3. To replace like habitats at a 1:1 ratio, by habitat type, and to the extent possible, on a watershed basis; 4. To restore the highest quality habitats possible (i.e., those which can be expected to sustain a high level of natural biodiversity and/or a higher relative abundance of species); 5. To maximize Overall Benefit for SAR within the selected restoration compensation sites; and 6. To maximize the amount of forest interior habitat within the Project Lands. In total, 407ECGP has selected 34 sites on the Project Lands to achieve the required compensation for forest and wetlands, and Overall Benefit for SAR. Species At Risk Establishment of habitat and vegetation management for SAR includes: 1. Butternut (Juglans cinerea) and companion tree planting, tending and monitoring. The ESA Permit for Butternut requires the planting of approximately 705 Butternut at a density of no more than 200 Butternut per hectare (ha) and planting of 1,410 trees of other compatible species (e.g., white pine, oak, maple) in proximity to the Butternut planting areas. 2. Bobolink (Dolichonyx oryzivorus) and Eastern Meadowlark (Sturnella magna) habitat creation, tending and monitoring. The ESA Permit for Bobolink/Eastern Meadowlark requires that ha of prime breeding habitat (i.e., grassland/graminoid meadow) be established and maintained.

80 Design and Construction Report #6 78 of DRRCGPR Barn Swallow (Hirundo rustica) foraging habitat restoration/creation/enhancement in areas where Barn Swallow nesting structures are to be constructed, and subsequent monitoring to evaluate performance of these benefit activities. As per the ESA permit for Barn Swallow, 407ECGP and MTO have constructed 24 large and small nesting structures with a total of 750 nesting cups for Barn Swallow, placed along the ceiling joist in the structures. 4. Redside Dace (Clinostomus elongatus) habitat restoration within defined regulated habitat area for species (i.e., stream meander belt width plus 30 m), which includes riparian tree/shrub plantings along streams, forest and wetlands (Total ha) in East Duffins Creek, Carruthers Creek and Lynde Creek watersheds, including subsequent vegetation monitoring as outlined in the Permit. In addition to these vegetation replacement works, other Overall Benefit activities for Redside Dace will also be undertaken, such as the removal of an online pond, decommissioning of agricultural tile drain outlets and removal of instream barriers to allow for fish passage. MTO is also contributing funding towards other Overall Benefit activities in all three watersheds Restoration Templates and Vegetation Site Restoration Plans Restoration templates have been developed to achieve ecological restoration outcomes. The restoration templates are developed as specific lists of ecologically appropriate plant species by stock type to achieve ecological restoration objectives, as well as a list of herbaceous species that are considered appropriate for restoring the herbaceous layer. The seed and plant species in the Detailed Vegetation Site Restoration Plans for the Project are contained in the VCRER. The site restoration plans were developed using natural vegetation inventory information for the Durham Region and as identified in the EA for the Project. In total, over 800 native species of vascular plants that are known to occur in the Durham Region were considered as potential species for development of the seeding and planting plans. Detailed Restoration Site Plans for all the restoration areas include the following key elements: Site Description (existing conditions); Site Specific Restoration Objectives, including Reference Model(s); Restoration Maps (showing restoration vegetation unit boundaries); Site Constraints and any Special Provisions, where applicable (e.g., to SAR, damage from unauthorized All Terrain Vehicles, etc.); Seed and Planting Plan; Site Preparation Instructions;

81 Design and Construction Report #6 79 of DRRCGPR Invasive Species Management Instructions; and Adaptive Management Considerations and Instructions (e.g., invasive species control watering/irrigation, pest management, etc.) Illumination From the illumination assessment completed by 407EDGs, the locations along the 407 East Phase 1 mainline, the West Durham Link, and the realigned Highway 401 require illumination as per the warranting criteria established by MTO. There are generally two types of lighting used for highway illumination, Conventional Cantilevered Arm Lighting and High Mast Lighting. Conventional Cantilever Arm Lighting High Mast Lighting The following is a summary of the sections warranting illumination. Mainline High Mast Lighting at: Lake Ridge Road Interchange and 407 East mainline; and At WDL and East mainline Interchange. Freeway conventional lighting at: Lake Ridge Road interchange ramps and WDL and Highway interchange ramps; and 2 km section on the highway 407 mainline eastbound approach to termination limit at Harmony Road. Interchange ramps with conventional lighting at:

82 Design and Construction Report #6 80 of DRRCGPR Baldwin Street EastNorth/South, WestNorth/South, SouthEast and North West exit Ramps; Thickson Road EastNorth/South, WestNorth/South, SouthEast and North West exit Ramps; Simcoe Street EastNorth/South, WestNorth/South, SouthEast and North West exit Ramps; and Harmony Road WestNorth/South, SouthEast and NorthWest exit Ramps. Realigned Highway 401 High Mast Lighting at: West Durham Link High Mast Lighting at: Highway 401 and WDL Interchange From existing Highway 401 high mast lighting 1 km east of Salem Road to WDL. From the realigned Highway 401 Interchange to Dundas Street. Conventional lighting at: Light Trespass Taunton Road interchange; Truck laby exit ramps; and Dundas Street interchange. MTO guidelines limit light levels at the edge of a highway RightofWay in residential areas to 5 lux. 407EDG s designers have conducted computerized modelling of the light spread from the highway illumination to predict the light levels. In a few locations the levels will exceed 5 lux. Where this occurs, lower wattage lamps have been specified for the contributing light fixtures to ensure the 5 lux level is not exceeded, while maintaining safety standards Structures and Stream Realignments Lynde Creek Tributary A Culvert (Structure W17) and Stream Realignment For the works in DCR #6, a realignment of approximately 205 m of Lynde Creek Tributary A (Watercourse Crossing Site No. 97) and construction of a 6.0 m wide x 3.0 m high box culvert at Rossland Road is required in order to accommodate the ultimate configuration of the WDL and

83 Design and Construction Report #6 81 of DRRCGPR Rossland Road interchange. The ultimate configuration of the WDL/Rossland Road interchange will include a ramp from Rossland Road eastbound to southbound WDL to be constructed in the future. As such, the stream realignment and culvert are proposed to be constructed in advance of the ultimate interchange work, and will also to help facilitate the construction of the future intersection improvements at Lake Ridge Road and Rossland Road. A natural channel design approach has been adopted for the required stream realignment by fluvial geomorphologists and hydrologists, with input from fisheries biologists and landscape architects, to ensure that the specific fish habitat elements and their functions are reinstated and, where possible, enhanced. The stream realignment will be constructed to mimic the existing channel attributes with respect to form (width, depth), function and channel slope. Fish habitat elements, such as natural substrate, poolriffle morphology, and planting of trees and shrubs to promote shading and reduce erosion, will be implemented throughout the realigned tributary. Further details on the fish habitat mitigation and compensation measures for the subject stream realignment are provided in Section Design Modifications to Structures and Stream Realignments in Past DCRs A DCR is required to document the Detail Design phase of a project, including modifications made to designs developed in previous phases of the project. DCR #6 documents a number of changes to designs of structures and stream realignments presented in previous DCRs. It should be recognized that the design process is evolutionary by nature, with assumptions and knowledge used in the earlier stages of the design often giving way to more specific information obtained through ongoing investigations, consultation and design optimization processes. These processes often result in refinements to the design, including minor changes in the geometry of structures, or even the location of specific design elements. In general, the design of structures and stream realignments for the Project were documented in DCRs at what is typically referred to as the 50% design level or better. As the design elements progressed through the design process, the final Detail Design in some instances resulted in modifications that are significant enough to warrant documenting the changes in this DCR, even though they meet the technical and environmental design criteria set out for the Project, as defined in the EA. The changes to structures and/or stream realignment designs presented in previous DCRs are described below. The Detail Design drawings for these structures and stream realignments are included in Appendix A.

84 Design and Construction Report #6 82 of DRRCGPR Carruthers Creek Tributary A Bridge, Structure M17 (Water Crossing Site 11) Carruthers Creek Tributary A Bridge, Structure M17, carries the mainline over Carruthers Creek Tributary A (Water Crossing Site 11). The general arrangement of this bridge was modified from what was presented in DCR #3 as it became apparent that the construction staging of the bridge foundations and the stream channel realignment was problematic. The final bridge design now has abutment walls that are fully perpendicular to the highway, where previously there was a considerable skew. The stream channel realignment design has changed to suit the new bridge arrangement. The total span of the bridge is reduced from 31.6 m to 27 m, while the total area under the shadow of the bridge is reduced by the squaring up of the arrangement. Caruthers Creek Tributary E Bridge, Structure M21 (Water Crossing Site 15) Carruthers Creek Tributary E Bridge, Structure M21, carries the mainline over Carruthers Creek Tributary E (Water Crossing Site 15). The original design of this bridge structure in DCR #3 had it located in line with the existing Sideline 4 section that was to be permanently closed. Since the existing stream channel followed the ditch of this road through the site, the coordination logistics of building the foundations and realigning the channel became unfeasible. The final design relocates the structure 29 m west of the original plan, moving it away from the roadway. The stream channel realignment was also modified. Lynde Creek Tributary A Culvert, Structure M22 (Water Crossing Site 16) Lynde Creek Tributary A Culvert, Structure M22, carries the over Lynde Creek Tributary A (Water Crossing Site 16). This structure was presented in DCR #5 as a 14.6 m wide by 3.25 m high open bottom arch culvert. Optimization of the design to achieve a more costeffective solution, improve manufacturing lead times and reduce duration of construction resulted in the current design, which is a 8.0 m wide by 3.5 m high box culvert. The box culvert meets the key environmental criteria (i.e., fisheries and wildlife passage) that were considered significant in preliminary design, as documented in the Watercourse Crossing Report (AECOM, 2010) for Water Crossing Site 16 (Structure M22). As well, the reduction of the culvert width from 14.6 m to 8.0 m was reviewed by Fluvial Geomorphologist and deemed to be satisfactory to address anticipated stream meander movement and erosion elements. The box culvert will be embedded below the existing stream bed, with stone materials placed inside the culvert to provide suitable substrate and create a low flow channel to facilitate fish passage. The wildlife Openness Ratio (OR) of the box culvert is 0.27 and exceeds the EA wildlife target of 0.05 that is suitable for use by small animals. The Openness Ratio is the crosssectional area of a structure (square metres) divided by the distance wildlife must travel through or under (in metres), and is a measure of the tunnel effect of a structure that may influence use by various wildlife species.

85 Design and Construction Report #6 83 of DRRCGPR Winchester Road Bridge, Structure M50 The Winchester Road Bridge, Structure M50, carries the mainline over Winchester Road. This large structure was presented in DCR #2 as a rectilinear shape with an overall span length of 231 m. Design changes to minimize the structure length were implemented, with the end result being a reduced overall length of 198 m. Other design enhancements include a fire proofing treatment to the underside of the deck structure, a fire detection and alarm monitoring system, as well as a dry standpipe system for fire fighting. Oshawa Creek East Branch Bridge, Structure M55 (Water Crossing Site 35) The Ritson Road and Oshawa Creek East Branch Bridge, Structure M55, carries the Highway 407 mainline over Ritson Road and Oshawa Creek East Branch. This structure has not changed significantly from what was presented in DCR #4. However, the realignment of the watercourse has been shifted to the east and now passes through the clear span between Piers #2 and #3 of the structure, where it previously was between Piers #1 and #2. This relocation was implemented to reduce the length of the required stream realignment downstream of the bridge and associated impacts to fish habitat, and also to increase the separation between the watercourse and Ritson Road. The subject stream realignment was reviewed by Fisheries and Oceans Canada (DFO) and an Authorization was secured under the Fisheries Act for these works. Lynde Creek Tributary Bridge, Structure W6 (Water Crossing 51) The Highway 401 Bridge, Structure W6, carries Highway 401 over Lynde Creek Tributary A (Water Crossing Site 51) and was originally presented in DCR #2. Although, the structure has not changed in form it has been moved to the west 18 m from its original position to accommodate an alternative pier design configuration for Structure W7 (see below). The stream realignment associated with this structure has been modified to suit the new bridge pier locations and was reviewed and approved by DFO under the Fisheries Act. Highway 401 West WDL North Ramp Bridge, Structure W7 The Highway 401 West WDL North Ramp Bridge, Structure W7, carries the subject ramp over Lynde Creek Tributary A (Water Crossing Site 51C) and Highway 401. This structure was included in DCR #2 and has not changed significantly other than that the piers have changed from single large pier supports to multiple piers. This change impacted the location of Structure W6 as noted above. Lynde Creek Tributary T Culvert, Structure W1 (Water Crossing 99) Lynde Creek Tributary T Culvert, Structure W1, carries the realigned Highway 401 over Lynde Creek Tributary T (Water Crossing Site 99) and is located approximately 225 m west of Lake Ridge Road. This structure appeared in DCR #3 as a 165 m long x 9 m wide x 2.4 m high

86 Design and Construction Report #6 84 of DRRCGPR precast box culvert. The structure dimensions have been changed to 154 m long x 8 m wide x 2.1 m high. The initial structure span width was established based on geomorphic data that applied three times the maximum bankfull width of the creek as conservative approach, which resulted in a 9 m span. Further geomorphic assessment and hydraulic analysis subsequent to DCR #3 deemed that a 8 m width x 2.1 m high culvert is sufficient to meet the EA design criteria and will accommodate the channel width, meander amplitude and migration trends of the creek. The Openness Ratio of the revised structure is 0.10 and exceeds the EA wildlife target of 0.05 that is suitable for use by small animals. Lynde Creek Bridge, Structure W10 (Water Crossing 100) The Highway 401 Bridge, Structure W10, carries Highway 401 over the Main Branch of Lynde Creek (Water Crossing Site 100). This structure appeared in DCR #2 and has not changed significantly other than the span being increased by 6 m to mitigate impacts on the existing watercourse and Provincially Significant Wetland. Lynde Creek Tributary B Culvert, Structure W14 (Water Crossing Site 47) The WDL over Lynde Creek Tributary B, Structure W14, is located on the WDL about 500 m south of Rossland Road (Water Crossing Site 47). This structure appeared in DCR #1 as a 12.8 m wide by 4.0 m high arch culvert. The height of this arch has been changed to 3.4 metres, which is a more commercially available size. The Openness Ratio is 0.56 and exceeds the EA wildlife target of 0.05 that is suitable for use by small animals. Wildlife Crossing Culvert, Structure W23 (Crossing Site 43B) The WDL/Wildlife Crossing, Structure W23, is on the WDL about 1,350 m north of Taunton Road (Wildlife Crossing Site 43B). The width of this box culvert has been reduced from 5 metres in DCR #1 to 3.5 metres, while the length has been reduced by 4 metres to 59 m. The height of the box culvert remains unchanged at 2.0 m. The changes are a result of the final highway profile, affecting required culvert length, and selection of more standard size precast box culvert to accelerate construction and realize cost efficiencies. The Openness Ratio is 0.12 compared with the EA wildlife target of 0.05 that is suitable to encourage use by a range of small animals, including common amphibian species. Wildlife Crossing Culvert, Structure W24 (Crossing Site 43A) The WDL/Wildlife Crossing, Structure W24, is on the WDL about 2,650 m north of Taunton Road (Wildlife Crossing Site 43A). This structure was shown in DCR #1 as a 14.6 m wide by 4.1 m high arch culvert. The final design is an 8.5 m wide by 3.5 m high box culvert. The culvert has also been relocated approximately 25.0 m to south of its existing location to address highway drainage design concerns. The revised crossing location is not considered a significant change from a wildlife connectivity perspective and will continue to provide a link from

87 Design and Construction Report #6 85 of DRRCGPR Lynde Creek Tributary to a large forest unit to the east, as well the Lynde Creek Iroquois Beach Environmentally Significant Area (ESA) further east. The final openness ratio of the modified culvert is 0.62 compared to the EA target ratio range of , which is suitable to encourage use by a range of small and large animals Maintenance Facility The 407 Project scope of work includes the design and construction of a Maintenance Facility to support the operations of the highway. The Maintenance Facility is to be located on the east side of Salem Road, immediately south of the East mainline. The 4.2 hectare (ha) facility will be completely fenced, with access from Salem Road for staff, material deliveries and saltwater disposal (see below). Maintenance vehicles, including snow plows and sanders, will access the facility from the highway rightofway off the Salem Road northbound to eastbound ramp. The facility will include: 983 square metre administration building with offices, a lunchroom, staff washrooms and showers, a truck service bay and a truck wash bay; Staff and visitor parking; 1,881 square metre covered sand/salt storage building; Outdoor materials storage; Maintenance vehicle parking; A brine making plant; A saltwater pond; and A stormwater management pond. The administration building will be designed and built to achieve LEED (Leadership in Energy and Environmental Design) certification. It is a singlestory building with a mezzanine. It will be clad in painted steel siding with a gabled steel deck roof. This building will be serviced by a septic system, including a sand leaching bed, all contained within the compound. Potable water for the facility will be drawn from a drilled well. Buried concrete water tanks will be used to store water for emergency fire fighting purposes. The sand/salt storage building will have concrete foundation walls with a white flexible curved roof. It will be accessed by two overhead doors. Loading of sand and salt onto service trucks for highway winter deicing operations will be done within this building.

88 Design and Construction Report #6 86 of DRRCGPR Water from the vehicle wash bay will drain to the salt pond and then subsequently be used to make brine solution for highway prewetting. Saltwater will not be discharged to the environment but will be trucked away for disposal as per MTO and MOECC policy and guidelines. The exterior of the property, and particularly the east side of Salem Road fronting the facility, will be landscaped with a mixture of deciduous and coniferous trees. Site lighting will minimize impacts to adjacent properties (zero LUX at 3 m from the property line). The engineering and landscape design drawings for the Maintenance Facility are presented in Appendix A Noise Barrier Walls The noise impact assessment conducted as part of the EA for the Project, and confirmed in Detail Design, concluded that two permanent noise barrier walls are required. One is along the mainline of the highway at the Village of Brooklin (407 East mainline) and the other is along the shoulder area of the Highway 401 Westbound lanes east of the West Durham Link Interchange. The latter replaces an existing barrier along Highway 401 that will be removed to accommodate the realignment of Highway 401. The noise barrier wall structures for noise attenuation consist of precast concrete panels, with soundproof insulation and decorative/liner patterns. The architectural finish and colour proposed is a natural or tan finish that will look like a stone block motif. Based on the location of the noise barrier in close proximity to the road platform, landscape plantings for visual screening of the structures are limited to the side of the noise barrier walls that are facing residential areas, where spacing permits. Engineering design drawings of the noise barrier walls, along with details of the plantings (Landscape Plan), are contained in Appendix A Highway 401 East of WDL Along the Highway 401 Westbound lanes, in the Town of Whitby, a 5 m high noise barrier wall will replace the existing barrier along the north side of the highway from Lynde Creek to just west of Annes Street, a distance of 1,057 m (Station to Station , refer to Exhibit 3.6). The location of the new replacement barrier will be to the north of its current position based on the overall realignment and northerly shift of Highway 401. The west limit of the new barrier wall will be the bridge structure over West Lynde Creek, and the east limit of the wall will overlap/extend slightly past the existing corrugated steel barrier wall near Annes Street. The replacement barrier wall will be constructed to allow for the short term construction staging works for Highway 401 and will be situated at the ultimate development scenario for Highway 401 that includes future lanes for the expansion of the Highway 401 and associated ramps at the Highway 401/WDL Interchange.

89 Design and Construction Report #6 87 of DRRCGPR Exhibit 3.6: Location of the noise barrier wall barrier along the north side of Highway 401 from Lynde Creek to approximately Annes Street LANDSCAPE PLANTING AREA Exhibit 3.7: Typical crosssection view of Highway 401 noise barrier wall The predicted mitigation of sound levels as a result of the noise barrier wall from the analysis conducted during the Detail Design phase are described in Section

90 Design and Construction Report #6 88 of DRRCGPR Brooklin Area South of the Village of Brooklin, a noise barrier wall will be constructed from west of Lynde Creek to Anderson Street, a distance of approximately 750 m (refer to Exhibit 3.7). The noise barrier wall will be 5 m in height with the exception of at the Lynde Creek Bridge structure, where a 4 m high transparent wall will be installed on the bridge to maintain visual openness. Exhibit 3.7: Length and location of the noise barrier wall near the Village of Brooklin Exhibit 3.8: Transparent noise barrier wall typically installed on highway bridge structures

91 Design and Construction Report #6 89 of DRRCGPR Exhibit 3.9 Crosssection view of the noise barrier wall located on the bridge parapet wall; and along the roadside shoulder area of the westbound lanes of the highway at Brooklin The predicted mitigation of sound levels as a result of the noise barrier wall from the analysis conducted during the Detail Design phase are described in Section Stormwater Management Ponds The design of drainage systems for includes a number of interrelated elements: highway and interchange drainage, stormwater management (SWM) ponds, water crossing structures and stream realignments, all of which have been documented in past DCRs for the Project. The purpose of this section of the DCR is to provide further design details on the stormwater management ponds for the Project. Detail Design drawings (Plan view) of the stormwater management ponds are contained in Appendix A4, with other related cross sectional views and details available on 407EDG s Project website. The following is intended to provide an overview of the key design elements of the stormwater management ponds for the Project. There are thirtytwo (32) stormwater management (SWM) ponds that will be constructed for water quality treatment, extended detention/erosion control and quantity control; these have been designed in accordance with applicable MTO and MOECC design standards and guidelines. Figure 32 shows the location of the SWM ponds for the Project. The pond facilities are designed to provide an enhanced level (Level 1) of water quality protection with the removal of 80% of Total Suspended Solids in highway runoff by settlement. For water quality treatment, the greater of the extended detention or first flush storm event (25 mm) will provide a minimum drawdown time of 24 hours. In addition to the ponds, enhanced grass swales and wet swales are being used as part of a treatment to provide additional quality control for the highway runoff.

92 Design and Construction Report #6 90 of DRRCGPR The water from SWM ponds will be released through controlled means to adjacent existing localized drainage features and watercourses with the objective to attenuate the increase in peak flow as a result of the highway to predevelopment flow rates. The ponds will provide quantity control utilizing the runoff allowable rates as prescribed in specific watersheds by the local conservation authorities from the 2year through 100year design storm events. Quantity control will be provided via outlet structures with weir and orifice controls and an active storage depth area within the ponds. The SWM pond outflows at each pond (controlled by an outlet structure) will be conveyed through an outlet pipe and channel that drains at a controlled rate to existing watercourses. In general, each SWM pond includes a sediment forebay, which traps sediment particles near the inlet area of the pond, a permanent pool, extended detention, active storage detention, freeboard, and emergency spillway for the regional storm event. The outlet of SWM ponds have been designed with a bottom draw system to drain the cooler water from the base of the ponds in order to reduce the potential thermal impact of water released to existing watercourses. Pond outlet configuration, as well as other measures such as strategic planting around each pond, was also considered as part of a multiple mitigation strategy to reduce the thermal impact and protect coldwater streams that support aquatic species, which are sensitive to temperature increases. In addition to the above engineering design criteria for SWM ponds, as per condition 9(b) of MNR Permit (AUC00111) issued under the Endangered Species Act, for Redside Dace, ponds that discharge to this species habitat/streams have been designed to meet the water quality objectives as described in the Ministry of Natural Resources Draft Guidance Document Development Activities in Redside Dace Protected Habitat (February 2011). Specifically, these discharge design targets are: No more than 25 mg/l of total suspended solids (TSS) above the background stream level of TSS; Water temperatures below 24ºC; and Dissolved oxygen levels of at least 7 mg/l. All stormwater management ponds will be graded with a 5:1 (horizontal:vertical) side slope, and will be surrounded by plantings to better blend into the natural landscape. The SWM ponds will be shaped with gentle curves and 5 m wide access roads for maintenance purposes. Detail Design drawings that show the planting plan for each pond are contained in Appendix A1.

93 Design and Construction Report #6 91 of DRRCGPR Design Modifications to Stormwater Management Ponds in Past DCR s SWM Pond 48N The preliminary design for Segment B2 of the WDL included two stormwater management (SWM) Ponds 47N and 48N. During detail design, it was determined that it would not be feasible to discharge into the intended watercourse from pond 48N based on the review of the profile elevations of the WDL through the catchment area and the actual elevation of the watercourse. Pond 48N was therefore eliminated from the drainage design with all intended flows being conveyed to Pond 49E in Segment B1 to the south. SWM Pond 51A The preliminary design for Segment B1 of the WDL included ponds on the north side of Highway 401 on either side of the WDL ramps within the Highway 401/WDL interchange. During the detail design phase, the geometry of the ramps had changed with the end result being that there was a larger triangular area between the ramps and Highway 401 which allowed for the placement of a single central pond instead of two ponds. This new pond has been designated as SWM Pond 51E. SWM Pond 21W During preliminary design, SWM Pond 21W was intended to provide runoff control and water quality treatment for the rightofway west of Water Crossing #21. During detail design, it was determined that only a very short section of the highway west of the crossing would actually drain from west to east to Lynde Creek Tributary I. Therefore, it was decided that the flows were not significant enough to warrant a pond and instead enhance swales are now proposed to meet the stormwater management design criteria. SWM Pond 16E1 The preliminary design for Segment A2 included SWM Pond 16E1, located just west of Kinsale Road to provide runoff control and water quality treatment for the rightofway. During detail design, it was determined that only approximately 1.80 ha of roadway improvements out of the overall ha drainage catchment area could be conveyed to SWM Pond 16E1. The majority of the contributing drainage area consisted of offsite flows, significantly increasing the pond storage volume and size of the pond required. The available rightofway does not provide adequate area to create a diversion swale to route offsite drainage areas around the pond. As a result of this constraint, and the minimal drainage area from the roadway improvements to be captured, SWM Pond 16E1 was eliminated. The portion of flow that would have been conveyed to Pond 16E1 is now being directed to Pond 16E2 which was increased in size to accommodate the additional catchment area.

94 Westney Road Kinsale Road Lake Ridge Road Brougham Road Sideline 16 Road Paddock Road Harwood Avenue South Kent Street Halls Road North Garden Street Scott Street Concession Road 7 Urfe Creek Brougham Creek 8W Spring Creek 8E East Duffins Creek 11W 10E Concession Road 6 12E Salem Road 15E Highway 7 16E2 43S 42E 41W 18W 42S Lynde Creek Country Lane Columbus Road West 20W 20E Winchester Road West 43NE 21E Lynde Creek 24W Thickson Road North 26E Pringle Creek West Oshawa Creek 28W Thornton Road North 28E West Oshawa Creek 32E Simcoe Street North 34W 35W Oshawa Creek Columbus Road East 38E Winchester Road East Harmony Road North Whitevale Road Concession Road 5 Lynde Creek Conlin Road Concession Road 4 Taunton Road West 44N1 44N2 45N Concession Road 3 Finch Avenue Kingston Road Ganatsekiagon Creek Brock Road Church Street North Kingston Road West Harwood Avenue North Rossland Road Kingston Road East Audley Road Highway 401 CP Rail 47N 51W 45S Coronation Road Dundas Street West 49E 51E Brock Street Ash Street Dundas Street East Rossland Road East Corbett Creek Goodman Creek King Street West West Oshawa Creek King Street East 51S GO Transit / CN Rail Legend Redside Dace Stormwater Management Ponds Stormwater Management Ponds Proposed Hwy 407 Route Railway µ km Key Plan: Location of Stormwater Management Ponds Date: December 05,2014 File Number: 0000 Sub Code: 0000 Watercourses Roads Figure: 32 Rev.: Document Path: Z:\011712Hwy407\407 Organized\PondOutletSummary\MXD\RedsideDaceSWMPonds.mxd