WELCOME TACOMA TRESTLE TRACK & SIGNAL PROJECT OPEN HOUSE REVIEW AND COMMENT ON TRESTLE AND PLATFORM PRELIMINARY STRUCTURAL DESIGN

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1 WELCOME TACOMA TRESTLE TRACK & SIGNAL ROJECT OEN HOUSE REVIEW AND COMMENT ON TRESTLE AND LATFORM RELIMINARY STRUCTURAL DESIGN LEARN ABOUT TIMING FOR AESTHETIC ELEMENTS NEXT STES

2 CURRENT AND FUTURE SOUND TRANSIT SERVICE Everett MA KEY Link Light Rail Central Link (SeaTac/Airport Westlake/Seattle) Tacoma Link (Tacoma Dome Theater District) Under Construction In Design In lanning/ lanned Mukilteo Ash Way South Everett Sounder Commuter Rail Everett Seattle Sounder Lakewood Tacoma Seattle Sounder ST Express Regional Bus Express Bus Service Future Bus Rapid Transit (BRT) Edmonds Lynnwood Mountlake Terrace Shoreline 145th Bothell Canyon ark Woodinville Supporting Investments ark & Ride Rail Station or Bus Facility Rail Station, Transit Center or Bus Stop Improvements First Hill Streetcar (Opens 2014) HOV/Transit Improvements HOV Direct Access Ramp, Freeway Station or Overpass Ferry Terminal Sea-Tac Airport Amtrak Future projects at a glance n Expanded new light rail service to Lynnwood, Overlake and Kent/ Des Moines n New First Hill streetcar connecting Capitol Hill and ioneer Square n Four new round-trip Sounder trains between Lakewood and Seattle n Sounder station improvements n ermanent Sounder station in Tukwila n Bus Rapid Transit service across SR 520 Seattle Westlake University Street ioneer Square International District/ Chinatown & King Street Stadium SODO Westwood Village Tukwila/ International Blvd Burien SeaTac /Airport Northgate Roosevelt U District University of Washington Capitol Hill First Hill Rainier Beacon Hill Mount Baker Tukwila Mercer Island Columbia City Othello Rainier Beach Kirkland Bellevue Transit Center East Main South Bellevue Totem Lake Overlake Transit Center Overlake Village 130th 120th Hospital Renton Redmond Bellevue Eastgate Issaquah SE Redmond Construction not currently funded South Sammamish Issaquah Highlands Angle Lake Kent/Des Moines Kent S 272nd/ Federal Way Construction not currently funded To Gig Harbor and urdy Tacoma Community College South Tacoma Tacoma Federal Way Theater District/ S 9th Commerce Street/ S 11th Convention Center/ S 15th Union Station/ S 19th S 25th Tacoma Dome uyallup Auburn Sumner Bonney Lake Lakewood Duont 2/14

3 ROJECT OVERVIEW Length:.65 miles roject budget: $62M (2014 dollars) Completion date: 2017 TACOMA TRESTLE TRACK & SIGNAL ROJECT Sound Transit is replacing the aging wooden single-track trestle with a new, concrete double-track bridge to increase rail capacity for additional Sounder and Amtrak trains and improve reliability of passenger service. New East G Street overpass bridge New extended passenger platform Freighthouse Square t e Replace retaining walls S ee t roject area Str E G e r t New bridge body The project also includes: Upgrade railroad signals Minor street construction and utility relocations E L Street Replace retaining walls E J The Tacoma Trestle project was approved by voters in 2008 as part of the Sound Transit 2 ballot measure and is independent of the implementation of the oint Defiance Bypass roject.

4 TIMELINE/ROCESS TACOMA TRESTLE TRACK & SIGNAL ROJECT WE ARE HERE Conceptual reliminary Final Construction Fully Engineering / Engineering/ Design Operational Environmental Environmental NOVEMBER SUMMER Summer Late % design concept Environmental work State Environmental olicy Act (SEA) Archaeological Survey Wetlands Survey & Impact Analysis 60%, 90%, final design UBLIC INVOLVEMENT Aesthetic/architectural elements Construction impacts identify construction mitigation Develop business mitigation program Test pile program (Winter 2015)

5 BRIDGE BODY TACOMA TRESTLE TRACK & SIGNAL ROJECT BRIDGE BODY COMMUNITY INUT From spring 2014 survey referred: Two round column supports Two round bridge columns Support alternatives that were considered: Two, square Four, round Four, square latform extension column Note: This preliminary design does not include aesthetic treatments. Those treatments will be added during the final design phase.

6 EAST G STREET OVERASS TACOMA TRESTLE TRACK & SIGNAL ROJECT EAST G STREET OVERASS New steel girder overpass Replacement wall Steel girder overpass that includes pedestrian walkway 13ft. 10in. COMMUNITY INUT From February 2014 meeting Freighthouse Square Create an open design No column between East G Street and East 26th Street Improved sightlines due to new wall Take advantage of opportunities to incorporate aesthetics Existing column removed East 25th Street Aesthetic treatments will be added during final design phase Note: This preliminary design does not include aesthetic treatments. Those treatments will be added during the final design phase.

7 LATFORM EXTENSION LATFORM EXTENSION TACOMA TRESTLE TRACK & SIGNAL ROJECT Signal bungalow Baggage cart turnaround Safety rail latform Features Amtrak requirements latform Between feet wide Space for baggage cart movement Safety rail Emergency exit Walled stairway, allowing protection of occupants for up to one hour Emergency exit Refuge for ADA Building to be demolished East 25th Street East G Street Freighthouse Square Note: This preliminary design does not include aesthetic treatments. Those treatments will be added during the final design phase.

8 AESTHETICS TACOMA TRESTLE TRACK & SIGNAL ROJECT Aesthetic treatments will be included during the final design of the new bridge. ublic feedback recommended: Lighting Incorporate lighting to enhance safety and serve as an artistic element Concrete forms Use form liners to treat concrete and create patterns on elements of the bridge Steel cut panels Integrate steel patterns into the bridge design and construction hyllis J. Tilley Memorial Bridge, Fort Worth, TX I-5 retaining wall, Tacoma, WA Shelby Street edestrian Bridge, Nashville, TN Interurban edestrian Bridge, Shoreline, WA Interurban edestrian Bridge, Shoreline, WA Beacon Hill Light Rail Station, Seattle, WA John Walser Bremerton Multi-modal Terminal, Bremerton, WA Art Grice Vicki Scuri Ray ower Artistic elements Transit Station wall, Charlotte, NC Loto Street Bridge, Eagle oint, OR

9 OTHER LATFORM EXTENSION Tacoma Link OMF COMMENTS Bridge body Building to be demolished latform extension East 25th Street East G Street Overpass East G Street Freighthouse Square BRIDGE BODY EAST G STREET OVERASS