Welcome to the Sellwood Bridge Project Pre-Construction Open House

Transcription

1 Welcome to the Sellwood Bridge Project Pre-Construction Open House 5:30 7:30 p.m. Please sign in here Information stations and project staff are located throughout the room.

2 Goals for Tonight s Meeting See the latest designs for the entire project Meet the contractor and learn about upcoming construction Review the project schedule and next steps Get your questions answered

3 Bike and Pedestrian Facilities

4 Bike and Pedestrian Facilities

5 Westside construction activities through April 2012 River View Cemetery Entrance Open Staff Jennings Buildings Removed Winter 2012 Staff Jennings/Powers Marine Park Driveway Permanently Closed to Traffic Starting December 2011; Bicycle Access to Bridge Will Remain Open Highway 43 Bicycle/Pedestrian Access to Bridge Maintained Macadam Bay Floating Home Community LEGEND Construction Haul Road Spring 2012 to Winter 2015 Landslide Stabilization Construction Spring 2012 SW Miles St Detour Bridge Construction March to June 2012 Construction Zone/Closed to Public Starting December 2011 N Segment of Trolley Corridor is Closed to Public Access Starting December 2011, Use Highway 43 Sidewalk Powers Marine Park Closed to Public - December 2011 to December 2015 Powers Marine Park Parking Permanently Closed Starting December 2011 Access to Old Sellwood Ferry Ramp Closed Starting December 2011

6 Eastside construction activities through April 2012 Eastside Greenway Trail Closed to Public - December 2011 to 2015 LEGEND Spokane St Construction Access Spring to July 2012 Build East Approach Spring 2012 Entrance Closed April 2012 Staging and Riverpark Parking Springwater Trail Detour Bridge Construction March to June 2012 Construction Zone/ Closed to public Sellwood Bridge Tacoma Street Closed March 2012 to 2015 Sellwood Harbor Condominiums Construction Staging Area Closed June 2012 to 2015 N

7 Proposed Construction Schedule Time Period September October 2011 December 2011 December 2015 December 2011 December 2011 December 2011 January 2012 January March 2012 Spring 2012 Spring 2012 June 2012 Summer 2012 (as early as late June) Summer 2012 (after bridge move) July October 2012 Construction Activity Mela Building demolition on east side (completed) Powers Marine Park closes Access to Staff Jennings and westside ferry landing close permanently Contractor mobilizes at east and west staging areas In-water work (install piers for temporary detour bridge) Staff Jennings buildings removed Modifi cations to eastside condos near bridge and construction fencing; close north entrance to Sellwood Harbor Install new approaches on east and west for detour bridge Contractor mobilizes staging area on SE Tacoma block across street from Brinsfi eld Boats Close bridge less than one week to move bridge for detour alignment Traffi c shifts to detour bridge alignment In-water work (install foundations for new bridge piers, work bridges from shore over river, remove old bridge piers) July October 2012 Build new Stephens Creek culvert, with bike and ped detour to Hwy. 43 Summer 2012 December 2015 Fall 2012 Fall 2015 Summer 2014 Spring 2015 Spring 2015 December 2015 Spring 2015 December 2015 Build regional bike/pedestrian trail between bridge and SW Miles St. Rebuild Highway 43 interchange Float in main arch span Shift traffi c to new bridge Construct fi nal section of east approach Remove detour bridge Project completion

8 Bridge Design - Looking West

9 Bridge Design - Looking East

10 Bridge Design - Recommended Features The package of recommended design features for the Sellwood Bridge was informed by public feedback gathered through surveys, public comments, agency input and committee discussion. These features have been recommended for their practicality in enhancing safety, the experience of using the bridge and livability of the surrounding neighborhoods. The design elements shown here were recommended by the project Community Advisory Committee (CAC) and Public Stakeholder Committee (PSC) and approved by the Multnomah County Board of Commissioners in October The images are largely conceptual; fi nal designs will be developed this winter. The architect is Safdie Rabines Architects of San Diego, who have designed signature bridges throughout the U.S. The fi rm is part of a design team led by engineering fi rm T.Y. Lin International. Bike Lane and Path Surface Treatments Enhanced Street Lighting Structural Lighting Benches and Belvederes Enhanced Fencing Structural Element Surface Treatments Gateway Feature A colored bike lane can help improve safety by emphasizing the presence of bicycles on the roadway shoulder. Pathway decals and subtle concrete color changes on the multi-use path can improve safety for bicyclists and pedestrians by making sure faster travelers are separated from slower travelers. These treatments can be created by using low maintenance concrete stain or surface textures. Enhanced street lighting can improve the appearance of what would otherwise be standard cobra-head fi xtures by using a more artistic design and highly effi cient LED lights. These dark sky compliant fi xtures would effi ciently light the multi-use paths and roadway while eliminating glare into nearby parks and neighborhoods. Structural lighting celebrates the structure of the bridge by using low-power LED lighting to subtly illuminate the outline of the arches and piers. Several lighting schemes were considered. This horizontal lighting design was recommended due to its lower cost and ease of maintenance. The word belvedere is Italian for beautiful view. The belvederes provide space off the multi-use paths for bicyclists and pedestrians to safely step out of the fl ow of pathway traffi c to enjoy the incredible views from the bridge. There will be two belvederes on each side of the structure, located above the in-water bridge piers. A simple bench within each belvedere can provide a place for people to rest while they are crossing the 2,000 foot path. Fencing is required in areas above Highway 43 on the west and over the railroad tracks on the east and west. At a minimum it will consist of basic chain link fencing. Enhanced fencing, shown above, is a more artistic, less obtrusive design option. Structural Element Surface Treatments refer to color and texture added to the concrete underside of the bridge. These treatments help create design continuity between the rust colored steel spans and the shorter concrete approach spans and beams. They also add visual interest for passersby and residents living near the bridge. The surface treatments will also include an anti-graffi ti coating to help reduce future maintenance costs. In addition to serving as a neighborhood focal point and opportunity for public art, a gateway feature is a visual cue to drivers that they are no longer on a highway and are entering a residential neighborhood and business district. The gateway feature may be funded through the City of Portland s Two Percent for Art program.

11 Westside Design Details Sellwood Bridge Looking West Today 1 year after project completion 10 years after project completion

12 Westside Design Details Hwy. 43 Concrete Retaining Wall Today 1 year after project completion 10 years after project completion

13 Westside Design Details Hwy. 43 Looking South from Macadam Bay Today 1 year after project completion 10 years after project completion

14 Westside Design Components Landscape Topology Material Palette Corten Steel Galvanized Steel Geology Regional Trail Guardrail Powder Coated Steel Exposed Aggregate Concrete Unconsolidated Basalt Applications River Rock Cast in Place Concrete Walls With Form Liner Fluting Native Basalt Reinforced Soil Slopes With Native Plants Plant Communities Native Plants Stained Concrete Barriers Standard Stained

15 Funding Sources Secured Multnomah County $127,000,000 City of Portland $73,500,000 State of Oregon $30,000,000 Previous Federal Funding $15,600,000 Federal TIGER III $22,700,000 Grand Total $268,800,000

16 Potential Interim Interchange Design y Superintendent s House (Funeral Riverview Home) Park New Parking Signal Lot Cemetery Streetcar Exis ng Signal Powers Marine Park Sta Jennings Sta Jennings