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Agenda • an Overview of the Construction Schedule, Sequence and Phasing of Work on the Portion of East Link Comprised of 5-7 P.M

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Agenda • an Overview of the Construction Schedule, Sequence and Phasing of Work on the Portion of East Link Comprised of 5-7 P.M CENTRAL BELLEVUE CONSTRUCTION OPEN HOUSE EAST LINK EXTENSION The purpose of tonight’s meeting is to provide: Agenda • An overview of the construction schedule, sequence and phasing of work on the portion of East Link comprised of 5-7 p.m. Open House the East Main, Bellevue Downtown, Wilburton and Spring Meet with project staff and review District/120th Stations. information about the construction schedule, sequence and phasing. • A chance to talk with the central Bellevue project team and meet the Contractor that will build the central Bellevue 5:30 p.m. Presentation portion of the East Link project. 7 p.m. Meeting adjourns 5/ 17 LIGHT RAIL ALIGNMENT EAST LINK EXTENSION Length: 14 miles Redmond Technology Center P NE 40th Ride times: • Mercer Island Overlake to University of 520 Spring District/ Village Washington: 20 minutes 120th P • East Main to Westlake: Bel-Red/ 21 minutes Wilburton Ave NE 152nd 130th Lake NE 8th St • Redmond Technology Washington NE 6th St Bellevue Center to Bellevue Downtown Downtown: 10 minutes East Main Main St Rider projection: About 50,000 riders will use East Intl District/ Judkins Link every day by 2030 Chinatown Park Mercer Island Budget: $2.8 billion P Rainier Ave S P South Bellevue (2010 $) Start of service: 23rd Ave S Targeted 2023 77th Ave SE 80th Ave SE 2006-2011 2011-2015 2015 2016-2022 Targeted 2022 Targeted 2023 Planning and Start of Heavy civil Testing and East Link environmental Final design advanced utility construction pre-operations in service review relocation 5/ 17 CENTRAL BELLEVUE OVERVIEW EAST LINK EXTENSION Highlights: • Four stations including the East Main, Bellevue Downtown, Wilburton and Spring District/120th stations. • Nearly two miles of new light rail including at-grade track, track within a tunnel and track on an elevated structure, which includes the segment that will allow light rail to cross over I-405. Travel times • East Main to University of Washington Station: 28 minutes • Bellevue Downtown to Westlake Station: 24 minutes • Wilburton to Redmond Technology Center Station: 9 minutes • Spring District/120th to Stadium Station: 30 minutes 5/ 17 LIGHT RAIL CONSTRUCTION IN CENTRAL BELLEVUE EAST LINK EXTENSION Spring District/120th 5 120th Ave SE NE 12th St 6 NE 12th St Bellevue Way 108th Ave SE NE Bel-Red Rd Lake Bellevue 124th Ave SE 124th Wilburton NE 8th St 4 NE 8th St Bellevue 3 The Central Bellevue portion of the project NE 6th St Downtown breaks construction into six distinct areas: 116th Ave SE 116th • Area 1: East Main Station • Area 2: South tunnel portal and downtown NE 4th St Bellevue tunnel • Area 3: North tunnel portal, City Hall Downtown Park parking garage and Bellevue Downtown Station area 2 • Area 4: Elevated light rail structure and Wilburton Station area Main St • Area 5: At-grade track area near NE 12th St Map key • Area 6: Spring District/120th Station area Station Ave SE 112th Surface route East Main Tunnel route Wilburton Hill Park Elevated route 1 Retained cut/fill 5/ 17 AREA 1: EAST MAIN STATION EAST LINK EXTENSION Key construction elements Main St 108th Ave SE Ave SE 110th Ave SE 112th • Structure demolition • East Main Station SE 2nd St • New crosswalk on 112th Avenue SE East Main Map key Station 1 Surface route Typical work hours: Tunnel route SE 4th St Monday-Friday, 7 am-6 pm Approximate construction schedule 2017 2018 2019 2020 2021 2022 2023 Site preparation, clearing and demolition of structures Utility work Construction of infrastructure, East Main Station, track and amenities Light rail systems installation, testing and certifications Light rail stations open and service begins 5/ 17 AREA 2: SOUTH TUNNEL PORTAL AND DOWNTOWN BELLEVUE TUNNEL EAST LINK EXTENSION Bellevue Downtown Key construction elements • Tunnel finishes NE 4th St Downtown • Traction power substation Bellevue tunnel • New, two-acre Main Street Park (currently under construction) at the south tunnel portal NE 2nd St 2 Map key Station Main St 112th Ave SE 112th Surface route Typical work hours: Tunnel route Elevated route Monday-Friday, 7 am-6 pm Approximate construction schedule 2017 2018 2019 2020 2021 2022 2023 Demolition of temporary sound wall Utility work Construction of infrastructure and amenities Light rail systems installation, testing and certifications Light rail stations open and service begins 5/ 17 AREA 3: NORTH TUNNEL PORTAL, CITY HALL AND THE BELLEVUE DOWNTOWN STATION EAST LINK EXTENSION 108th Ave SE 110th Ave SE 110th Key construction elements NE 8th St • North tunnel portal Bellevue 3 • Bellevue Downtown Station Downtown • Reconfigured Bellevue City Hall NE 6th St plaza and garage • New crosswalk on 110th Avenue NE 112th Ave SE 112th Map key Station Tunnel route NE 4th St Typical work hours: Elevated route Monday-Friday, 7 am-6 pm Approximate construction schedule 2017 2018 2019 2020 2021 2022 2023 Site preparation, clearing and demolition of select City Hall infrastructure Utility work Construction of infrastructure, Bellevue Downtown Station, reconfigured Bellevue City Hall garage and amenities Construction of north tunnel portal Light rail systems installation, testing and certifications Light rail stations open and service begins North tunnel portal construction – traffic control This summer, Sound Transit will begin a long-term closure of a portion of 110th Avenue NE between NE 4th and NE 6th streets in order to construct the north tunnel portal near Bellevue City Hall. As early as this August, the closure on 110th Avenue NE will begin and occur in multiple phases: • Phase 1 (approximately Summer 2017 – Spring 2018): scheduled to last approximately nine months, phase 1 will require the closure of all lanes on 110th Avenue in the work area (illustrated in the graphic) from NE 6th Street to just north of the entrance to the City Center garage. • Phase 2 (approximately Spring 2018 – Winter 2018): one lane of traffic will be reopened in both the north and southbound direction. • Phase 3 (approximately Winter 2018 – Spring 2019): phase 3 will require a full closure of all lanes on 110th Avenue in the work area (illustrated in the graphic) as utilities are reinstalled and the roadway is restored. 5/ 17 AREA 4: ELEVATED LIGHT RAIL STRUCTURE AND WILBURTON STATION EAST LINK EXTENSION Map key Station Ave SE 116th 112th Ave SE 112th NE 12th St Key construction elements Surface route Tunnel route • Structure demolition Elevated route Retained cut/fill • Elevated light rail construction Lake Bellevue including a long-span over I-405 NE 10th St 110th Ave SE 110th • Sturtevant Creek pedestrian bridge • Wilburton Station Wilburton 4 NE 8th St 120th Ave SE 120th Typical work hours: Monday-Friday, 7 am-6 pm NE 6th St Work in area 4 will require night and weekend construction during select Bellevue Downtown time periods Approximate construction schedule 2017 2018 2019 2020 2021 2022 2023 Site preparation, clearing and demolition of structures Utility work Construction of infrastructure, Wilburton Station, elevated track and amenities Light rail systems installation, testing and certifications Light rail stations open and service begins Elevated guideway construction Nearly 40 columns will be constructed to support the elevated guideway that will cross I-405 and transport riders between the Bellevue Downtown and Wilburton stations. Typical elevated guideway construction consists of: 1. Drilling shafts for column foundations 2. Installing columns 3. Building the guideway, bridge spans and rail A long-span aerial guideway will be constructed to cross I-405. This work will require nighttime construction to build and remove temporary construction support and is anticipated to commence in mid-2018. After completion of the temporary construction support, work will resume during daytime hours. Additional night work will be necessary to set precast girders for the NE 8th Street crossing. 5/ 17 AREA 5: AT-GRADE TRACK NEAR NE 12TH ST EAST LINK EXTENSION 116th Ave SE 116th Key construction elements Spring • Traction power substation District/120th • Coordination with City of Bellevue’s Spring Boulevard project • Interface with Sound Transit’s 5 120th Ave SE Operations and Maintenance Map key Facility: East project Station NE 12th St Surface route Tunnel route Typical work hours: Elevated route Retained cut/fill Monday-Friday, 7 am-6 pm Approximate construction schedule 2017 2018 2019 2020 2021 2022 2023 Site preparation, clearing and demolition of existing BNSF track Utility work Construction of infrastructure, track and amenities Light rail systems installation, testing and certifications Light rail stations open and service begins 5/ 17 AREA 6: SPRING DISTRICT/120TH STATION EAST LINK EXTENSION Spring District/120th Key construction elements • Spring District/120th Station • Coordination with City of Bellevue’s 124th Ave SE 124th 120th and 124th Avenue overpass 120th Ave SE Map key projects Station Surface route Tunnel route 6 Elevated route Typical work hours: Retained cut/fill Lake Monday-Friday, 7 am-6 pm Bellevue NE 12th St NE Bel-Red Rd Approximate construction schedule 2017 2018 2019 2020 2021 2022 2023 120th Avenue overpass (City of Bellevue project) 124th Avenue overpass (City of Bellevue project) Site preparation, clearing and hardscape demolition Utility work Construction of infrastructure, Spring District/120th Station, track and amenities Light rail systems installation, testing and certifications Light rail stations open and service begins 5/ 17 EAST MAIN STATION EAST LINK EXTENSION SOUTH PLAZA VIEW EAST MAIN STATION AREA LANDSCAPE PLAN 5/ 17 BELLEVUE DOWNTOWN
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