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Project updates: Northgate Link Extension

Oct 11, 2018

Night-time Work: Monday, 10/15 to Wednesday, 11/21 closure of NE 103rd Street between 1st Avenue NE and 3rd Avenue NE

On Monday night, October 15th, to Wednesday morning, November 21st, a portion of NE 103rd Street will be closed while Sound Transit’s contractor erects steel and places concrete for the station’s platform, escalators, and stairways. 
Work hours:

  • Begins: Monday night, October 15, 8 p.m.
  • Ends: Wednesday morning, November 21, 4:30 a.m.
  • Work will be on pause on Sunday nights (10/21, 10/28, 11/4, 11/11, 11/18)

Traffic impacts:

  • Closure of NE 103rd Street east of the 1st Avenue NE intersection to west of 3rd Avenue NE intersection (see map). 1st Avenue NE will remain open in both directions. 
  • Access to Northgate Mall and Northgate Transit Center will be maintained. 

Construction equipment: Cranes, forklifts, man lifts, welding machines.

Map of Northgate transit center closure area

Oct 1, 2018

Night-time work: Thursday, Oct. 4 to Friday, Oct. 5, closure of Northeast 100th Street between 1st Avenue Northeast and 3rd Avenue Northeast

Detour map for 100th Street Northeast closure in Northgate, Oct. 4 and 5.

On Thursday night, Oct. 4th, to Friday morning, Oct. 5th, a portion of Northeast 100th Street will be closed while Sound Transit’s contractor removes falsework from the guideway.

Work hours

  • Begins: Thursday, Oct. 4th, 7 p.m.
  • Ends: Friday, Oct. 5th, 4 a.m.

Traffic impacts

  • Closure of Northeast 100th Street east of the 1st Avenue Northeast intersection to west of 3rd Avenue Northeast intersection (see map).
  • 1st Avenue Northeast will remain open in both directions.

Access to Northgate Mall and Northgate Transit Center will be maintained.

1st Avenue Northeast will have a northbound lane closure with a detouring lane shift to maintain two-way traffic.

Construction equipment

  • Crane, man lifts, forklifts, and light plants.
Sep 24, 2018

Night-time Work: Friday Sept. 28 to Saturday, Sept. 29 closure of NE 103rd Street between 1st Avenue NE and 3rd Avenue NE

On Friday night, Sept. 28th, to Saturday afternoon, Sept. 29th, a portion of NE 103rd Street will be closed while Sound Transit’s contractor places concrete for the station’s escalators and stairways. 

Work hours

  • Begins: Friday, September 28th, 8 p.m.
  • Ends: Saturday, September 29th, 3 p.m. 

Traffic impacts
Closure of NE 103rd Street east of the 1st Avenue NE intersection to west of 3rd Avenue NE intersection (see map). 1st Avenue NE will remain open in both directions. 
Access to Northgate Mall and Northgate Transit Center will be maintained. 

Construction equipment

Cranes, concrete pumps, concrete trucks, vibrators, forklifts, and man lifts.

Sep 6, 2018

On Monday night, Sept. 10 thru Friday night, Sept. 14, 1st Ave NE will be closed from NE 92nd St to NE 100th St while Sound Transit’s contractor performs trenchwork to install storm drainage utility pipes.

Work hours

  • Monday night, Sept. 10 – Friday night, Sept 14 (ends Saturday, Sept 15)
  • 7:00 p.m. – 5:00 a.m. nightly

Traffic impacts

Closure of 1st Ave NE north of the NE 92nd Street intersection to south of NE 100th Street intersection (see map).

  • Access to intersections on NE 92nd St and NE 100th St will be maintained.
  • Access to Northgate Mall and Northgate Transit Center will be maintained.
  • Local access:
    • Residents and business customers will be escorted in by flaggers.
    • When approaching the site, please turn on your hazards to inform the flagger that you need access.

Construction equipment

Excavators, light plants, dump trucks, demo saws, rollers, and front end loaders.

Map of construction area

Aug 31, 2018

Early morning concrete pour at the U District Station site

Map of traffic impacts for concrete pour at U District Station.

As early as Thursday, Sept. 6, Sound Transit's contractor will conduct concrete pours for the U District Station (UDS). All concrete trucks will enter through the designated gates, turn around and back into the UDS site to have concrete pumped out of the trucks. Once emptied they will leave the site through the gates in which they entered (see map). The contractor has obtained a Temporary Noise Variance to complete this work. The work schedule is below.

What to expect for traffic impacts: Thursday, Sept. 6

Work hours:
  • 3 a.m. to 8 p.m.
  • 3 a.m. pump set-up, 4 a.m. pour

Concrete trucks will enter and exit the UDS site at the following gates:

The North Gate: Trucks will enter on Brooklyn Avenue Northeast near Northeast 45th Street. Once the trucks have been emptied they will leave the site through this gate and proceed north to Northeast 50th Street before entering the freeway (see map). There will be a Seattle Police Officer (SPO) posted at Northeast 45th Street for traffic control.

The West Gate: Trucks will enter on Northeast 43rd Street near 12th Avenue Northeast. Once the trucks have been emptied they will leave the site through this gate and proceed to 11th Avenue Northeast, turn right and proceed north to Northeast 50th Street before entering the freeway (see map). Concrete trucks will be staged near the west gate. A flagger will be present.

The South gate: Trucks will enter on Brooklyn Avenue Northeast near Northeast 43rd Street. Once the trucks have been emptied, they will leave the site through this gate, proceed down Brooklyn Avenue Northeast to Campus Park Way, and turn left. At 15th Avenue Northeast they will turn left and proceed north to Northeast 50th Street before entering the freeway (see map). Concrete trucks will be staged near the south gate. A flagger and SPO will be present.

No parking signs: will be placed in the following locations:

  • Brooklyn Avenue Northeast south of Northeast 43rd to Northeast 42nd Street.
  • Brooklyn Avenue Northeast north of Northeast 45th to Northeast 47th Street.
  • Brooklyn Avenue Northeast south of Northeast 45th Street.
  • Northeast 43rd Street west of Brooklyn Avenue Northeast to 11th Avenue Northeast.

Sidewalk closures: The sidewalk on Brooklyn Avenue Northeast between the UDS site and Northeast 45th Street will be partially closed. Business access will be maintained.

  • The pedestrian pathway around the UDS site will be open.

Work activities: Increased vehicle traffic (10 trucks per hour at each gate).

Aug 24, 2018

Materials loading in at the Roosevelt Station Site

Tuesday, August 28, through Friday, September 21, Sound Transit’s contractor will be loading materials into the Roosevelt Station site using the tower crane. Work will be performed within the permit hours of 6AM to 7AM. A Temporary Noise Variance (TNV) has been approved for this work. Below are the times and dates of the work.

Duration of work:

  • Tuesday, August 28 – Friday, August 31
  • Tuesday, September 4 – Friday, September 7
  • Tuesday, September 11 – Friday, September 14
  • Tuesday, September 18 – Friday, September 21

What to expect:

  • Construction Activities: Materials will be loaded into the station box.
  • Traffic impacts: Temporary closure of northbound lane along west side of 12th Avenue NE between NE 65th and NE 68th Street will remain closed.
  • Sidewalk Closure: The sidewalk on the west side of 12th Ave NE between NE 65th and NE 68th street will remain closed.
  • Construction equipment: Tower crane
  • Work Hours: 6:00 am – 7:00 am Tuesday - Friday

Aug 23, 2018

Night-time Closures: Monday, Aug. 27 to Thursday, Aug. 30 & Tuesday, Sept. 4 to Thursday, Sept. 6 closure of 1st Ave NE from NE 92nd St to NE 100th St

On Monday night, Aug. 27 to Thursday night, Aug 30 and Tuesday night, Sept 4 to Thursday night, Sept 6, 1st Ave NE will be closed from NE 92nd St to NE 100th St while Sound Transit’s contractor performs trenchwork to install storm drainage utility pipes. 
Work hours

  • Monday night, Aug. 27th to Thursday night, Aug. 30th, 7:00 p.m. – 5:00 a.m.​
  • Tuesday night, Sept. 4th to Thursday night, Sept. 6th, 7:00 p.m. – 5:00 a.m.
  • Note: 1st Ave NE will be open on Labor Day weekend, Friday, Aug. 31st to Monday, Sept 3rd.

Traffic impacts
Closure of 1st Ave NE north of the NE 92nd Street intersection to south of NE 100th Street intersection (see map).

  • Access to intersections on NE 92nd St and NE 100th St will be maintained. 
  • Access to Northgate Mall and Northgate Transit Center will be maintained.
  • Local access to residents will be granted by and escorted in by flaggers. 

Construction equipment 
Excavators, light plants, dump trucks, demo saws, rollers, and front end loaders. 

Aug 22, 2018

Major changes coming to the Roosevelt Station site

As early as Monday, Aug. 27, Sound Transit's contractor will begin restoration work on Northeast 67th Street along the north side of the Roosevelt Station site. To restore the area, crews will take a three-phased approach, described below. Construction will take place during daytime hours.

Duration of the work: Aug. 27 – Mid November 2018

What to expect

Monday, Aug. 27 – Tuesday, Sept. 4

Phase 1: Temporary power relocation and demolition
  • Construction activities: Contractor will be relocating lights and temporary power along the sound wall on Northeast 67th Street.
  • Portions of the green sound wall panels and steel beams will be removed for the Seattle City Light (SCL) duct bank installation.
  • Construction equipment: Mid-size excavator, scissor lift, and a loader for hauling off debris.

Thursday, Aug. 30 – October 2018

Phase 2: Medium voltage power, excavation, trenching, concrete pours and backfilling
  • Construction activities: Excavation for SCL Vault and duct bank will begin Aug. 30th. 
  • SCL will set power poles on Northeast 67th Street the first week of September. 
  • Construction equipment: Mid-size excavator, vault setting truck, SCL pole setting truck, Vacuum Trucks, pump truck and concrete trucks. Loaders for hauling away debris. 

October 2018 – November 2018

Phase 3: Demolition, paving, sidewalk and gutters
  • Construction activities: Removing portions of the street and sidewalks and installing new pavement, sidewalks and gutters. 
  • Construction equipment: Excavators, compactors, pump truck and concrete trucks.
  • Traffic impacts: No parking will be allowed along Northeast 67th street while all phases of work are being done. 
  • Sidewalk closure: The sidewalk on the south side of Northeast 67th between Roosevelt Way Northeast and 12th Avenue Northeast will be closed during all phases of this work.
  • Work hours: 8 a.m. – 5 p.m. Monday – Friday,  9 a.m. – 5 p.m. Saturday

ConstructionAlertMap_201808

Aug 17, 2018

Night-time Closures: Monday, Aug. 20th to Wednesday, Aug. 22nd closure of NE 103rd Street between 1st Avenue NE and 3rd Avenue NE

Starting Monday, Aug. 20 to Wednesday, Aug. 22 Northeast 103rd Street will be closed nightly while Sound Transit’s contractor conducts utility installation for the new parking garage. 

  • Access to Northgate Mall and Northgate Transit Center will be maintained. 

Work hours

  • Monday night, Aug. 20 – Wednesday night, Aug. 22
  • 8 p.m. – 4:30 a.m. 

Traffic impacts
Closure of NE 103rd Street east of the 1st Avenue NE intersection to west of 3rd Avenue NE intersection (see map). 1st Avenue NE will remain open in both directions. 

Construction equipment
Excavators, rollers, light plants, front end loaders, dump trucks, demolition saw, etc. 

Aug 15, 2018

Saturday, August 18 closure of NE 103rd Street between 1st Avenue NE and 3rd Avenue NE

On Saturday, Aug. 18, Northeast 103rd Street will be closed while Sound Transit’s contractor installs temporary structural support used during construction. Access to Northgate Mall and Northgate Transit Center will be maintained.
 
Work hours

  • Saturday, August 18, 3 a.m. to midnight 

Traffic impacts
Closure of NE 103rd Street east of the 1st Avenue NE intersection to west of 3rd Avenue NE intersection (see map). 1st Avenue NE will remain open in both directions. 

Construction equipment
Cranes, semi-truck with flatbed trailer, aerial lifts, forklifts, etc. 

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