Appendix E Preliminary Design

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1 Appendix E Preliminary Design

2 LEGEND PROPOSED POOL PROPOSED RIFFLE PROPOSED COIR CLOTH BANK TREATMENT PROPOSED VEGETATED STONE BANK TREATMENT PROPOSED VEGETATED BLOCK BANK TREATMENT PROPOSED LUNKER BANK TREATMENT PROPOSED FRENCH DRAIN SYSTEM PROPOSED FILL AREA EXISTING TREE EXISTING TRAIL

3 POND PROFILE SCALE HOR=1:300 VERT=1:

4 Wrapped Coir Cloth Bank Treatment XS ground 16.00m Inv..41m Concrete Wall XS Wrapped Coir Cloth Bank Treatment 16.00m 1.50m Bankfull ground 0.75m Stone Wall Grade to existing ground from top of bankfull at 2% min. Fill existing pond with Proposed grade compacted native and control riffle imported material Top of existing retaining wall at terrace = m m Grade out from top of bankfull at 1.30% min. Fill existing pond with compacted native and imported material 10 Vegetated block bank treatment XS m Bankfull 1.06m Vegetated block bank treatment 1.50m Bed of channel to be compacted clean material. Imported material as required depending on future sediment quality testing ground Grade to existing ground from top of bankfull at 2% min XS Grade to existing ground from top of Vegetated stone bank treatment bankfull at 2% min. Vegetated block Fill existing pond with bank treatment compacted native and imported material 20.50m 1.50m Bankfull 8:1 1.55m Grade to existing ground from top of Inv m bankfull at 2% min. Fill existing pond with 1.50m Bed of channel to be compacted clean compacted native material material. Imported material as required depending on future sediment quality testing % Sidewalk Wall Raise existing retaining wall to elev m 'Pool' Terrace Stone Wall Concrete Wall Gravel Path Concrete Wall Inv m ground Concrete Wall Inv..59m Trail Trail

5 PROPOSED IMPERVIOUS LAYER NATIVE TO FILL GRANULAR 'B' INFERRED FROM GEORADAR DATA BEDROCK (MANITOULIN FORMATION) NORTH RETAINING WALL DETAIL Coir Cloth Bank Treatment N.T.S. Live stakes Mix of topsoil and native materials to be wrapped with coir cloth and well compacted to form banks Minimum of 1m past wet edge of bank treatment for both sides of the banks CONCRETE RETAINING WALL PROPOSED WALL ±1.0m C/C FINE AGGREGATE CONCRETE VEGETATED BLOCK DETAIL N.T.S. SHRUB PLANTINGS SHRUB PLANTINGS OR LIVE CUTTINGS DEPENDING ON SEASON TOPSOIL MIX STONE SIZE MAY DECREASE TOWARDS TOP OF BANK ANGULAR STONE MIX (LARGEST STONES CONCENTRATED AT TOE OF BANK) TOPSOIL PLANTING MEDIUM MUST BE IN CONTACT WITH NATIVE PROPOSED BANK MATERIAL CHANNEL BED THICKNESS OF PROTECTION STONE TO BE 2 x D84 STONE TO BE KEYED INTO CHANNEL BED A MINIMUM OF 75% OF MAXIMUM STONE DIAMETER VEGETATED ANGULAR STONE DETAIL N.T.S

6 LEGEND PROPOSED NATURALIZED FLOODPLAIN AREA PROPOSED RIPARIAN BUFFER PROPOSED RECREATIONAL GREENSPACE EXISTING TREE EXISTING TRAIL HAZARD WARNING SIGNAGE CULTURAL HERITAGE INTERPRETIVE SIGNAGE PROPOSED FENCE

7 CONSTRUCTION NORTH TP S1 S3

8 TP S2 S3

9 TP S3 S3

10 Belfountain Dam and Headpond Class EA Preferred Alternative D4H5: Lower the spillway & backfill headpond & construct channel Preliminary Cost Estimate ITEM ITEM UNIT EST. UNIT TOTAL NO. QTY. PRICE General 1 Mobilization LS 1 $30,000 $30,000 2 Construction Access LS 1 $20,000 $20,000 3 Dewatering & Erosion & Sediment Controls LS 1 $100,000 $100,000 Subtotal General $150,000 Dam Works 4 Concrete removals m 3 80 $1,000 $80,000 5 New concrete m 3 42 $1,500 $63,000 6 Cobble surface finish m 2 30 $1,000 $30,000 7 Install shear anchors EA 12 $10,000 $120,000 8 Rehabilitate south abutment LS 1 $20,000 $20,000 9 Rehabilitation work (concrete, south abutment & north retaining wall toe erosion) LS 1 $50,000 $50, Public safety signage, fencing, etc. LS 1 $5,000 $5,000 Subtotal Dam $368,000 North Retaining Wall Mitigation 11 Impervious membrane m 2 50 $100 $5, Wall drains EA 14 $500 $7, Excavation and restoration LS 1 $5,000 $5,000 Subtotal North Retaining Wall $17,000 Headpond/Channel 14 Sediment removal and disposal m $50 $100, Fill borrow m $10 $50, Riffle stone tonne 900 $70 $63, Lunker bank treatment EA 8 $500 $4, Vegetated stone bank treatment tonne 1000 $80 $80, Vegetated block bank treatment m $10 $4, French drain m 190 $20 $3, Coir cloth bank treatment m 65 $50 $3, Topsoil m $30 $18, Floodplain planting and seeding m $20 $50,000 Subtotal Headpond/Channel $376,550 Other Structural 24 Rehabilitation of existing north terrace retaining walls m 90 $500 $45, Raise existing pool terrace retaining walls m 40 $500 $20, Headpond pedestrian bridge (18 m span) LS 1 $120,000 $120, Proposed boardwalk m $600 $234,000 Subtotal Headpond/Channel $419,000 Subtotal $1,330, Engineering, Environmental, Landscaping Design (10%) $133, Contingency (25%) $332, HST (13%) $233,512 Total $2,029,754 ITEM NO Measured quantity Allowance Measured quantity Disposal as clean fill. Higher than average unit cost considering logistical issues (remove site; limited access/staging area may allow only 1 truck on site at 14 once) and material issues (possible need to mix with other bulk source to achieve engineering/environmental requirements). Assume majority of unconsolidated sediment (2500m3) is removed only Measured quantity ASSUMPTIONS Allowance Allowance Allowance Unit cost of achors installed as part of investigation by Terraprobe (2013). Allowance. Work is completed while headpond is dewatered, if necessary Allowance Based on cut/fill balance (assumes consolidated sediment is reused as fill; unconsolidated is removed from the site) Allowance for concrete rehabilitation, and localized replacement where deterioration is advanced. Allowance for new concrete, rehabilitation, and localized replacement where deterioration is advanced. Prefabricated steel span plus abutments. Pedestrian and small vehicle loads only. 155 m long x 2.5 m wide

Appendix N. Preliminary Design

Appendix N. Preliminary Design Appendix N Preliminary Design Belfountain Dam and Headpond Class EA Preferred Alternative D4H5: Lower the spillway & backfill headpond & construct channel Preliminary Cost Estimate ITEM ITEM UNIT EST.