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King County Construction

Last update: 2 p.m. Wednesday, July 19

This information changes frequently. Please check back often. Travelers can also call 5-1-1 for real-time traffic and weather updates.

If a highway is not listed below, there are no scheduled lane closures at this time, although emergency lane closures may still occur.

| SR 18 | SR 99 | SR 104 | SR 167 | SR 169 | SR 181 | SR 202SR 203 | SR 410SR 509 | SR 513SR 515 | SR 516SR 518 | SR 522 | SR 599 | SR 900 |

8th to 277th Southbound HOT Lane - #8665

Highway: SR 18    Region: Northwest    County: King    Location: Milepost(s) 2.88
Contacts: Sharif Shaklawun, Project Engineer, 206-949-3850, and Craig Smiley, Communications, 425-456-8639
Description: This project will widen SR 167 to add a lane in the southbound direction from Kent to Auburn and extend the existing High Occupancy Toll (HOT) Lanes system south on SR 167 in the Green River Valley.
Project website
Work schedule:

LANE CLOSURES

  • No lane closures are scheduled.

RAMP CLOSURES

  • No ramp closures are scheduled.
Downtown Seattle/SODO Construction Closures

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 29.00 – 34.30
Description: There are several projects affecting vehicle and pedestrian traffic on SR 99 and city streets through downtown Seattle and SODO.
Work schedule:

Seafair Torchlight 8k/5k Run

Highway: SR 99    RegionNorthwest    County: King    Location: Milepost(s): 30.45 – 32.67
Contact: Ally Barrera, Communications, 206-440-4457
Description: A section of the northbound SR 99 Alaskan Way Viaduct will be closed for the Seafair Torchlight run.
Schedule:

  • Saturday, July 29 – The northbound lanes of the State Route 99 Alaskan Way Viaduct between Royal Brougham Way and Harrison Street will be closed from 5 to 7:45 p.m.

8th to 277th Southbound HOT Lane - #8665

Highway: SR 167    Region: Northwest    County: King    Location: Milepost(s) 10.48 – 18.24
Contacts: Sharif Shaklawun, Project Engineer, 206-949-3850, and Craig Smiley, Communications, 425-456-8639
Description: This project will widen SR 167 to add a lane in the southbound direction from Kent to Auburn and extend the existing High Occupancy Toll (HOT) Lanes system south on SR 167 in the Green River Valley.
Project website
Work schedule:

RAMP CLOSURES

  • No ramp closures are scheduled.

LANE CLOSURES

  • Thursday, July 27, to the morning of Friday, July 28 – The right lane of northbound SR 167 between Ellingson Road and 15th Street Southwest will be closed from 9 p.m. to 5 a.m.

CITY STREET CLOSURES

  • No city street closures are scheduled.
I-405/SR 167 Interchange Direct Connector - #8811

Highway: SR 167    Region: Northwest    County: King    Location: Milepost(s) 24.80 – 26.26
Contact: Craig Smiley, Communications, 425-456-8624
Description: WSDOT contractor crews are building a new flyover ramp connecting the HOT lanes on SR 167 to the carpool lanes on I-405 in Renton. This ramp will improve traffic flow and safety at this critical interchange.
Project website
Work schedule:

RAMP CLOSURES

  • *Monday, July 17, to the morning of Friday, July 21 – The northbound SR 167 ramp to northbound I-405 will be closed nightly from 10 p.m. to 4:30 a.m. A signed detour will be in place.
  • *Monday, July 17, to the morning of Friday, July 21 – The southbound SR 167 ramp to northbound I-405 will be closed nightly from 10 p.m. to 4:30 a.m. A signed detour will be in place.
  • *Monday, July 17, to the morning of Friday, July 21– The South 180th Street to northbound SR 167 will be closed nightly from 10 p.m. to 4:30 a.m. A signed detour will be in place.

*Please note that not all the listed ramps will be closed at the same time. Select ramps will remain open to maintain a working detour for the traveling public.

LANE CLOSURES

  • Monday, July 17, to the morning of Friday, July 21 – Three lanes of southbound SR 167 from I-405 to South 180th Street will be closed nightly from 11 p.m. to 5:00 a.m.
  • Monday, July 17, to the morning of Friday, July 21 – Two lanes of northbound SR 167 from South 180th Street to I-405 will be closed nightly from 11 p.m. to 5:00 a.m.

CITY STREET CLOSURES

  • Monday, July 17, to Friday, July 21 – One lane of northbound East Valley Road between Southwest 19th Street and Lind Avenue Southwest will be closed from 9:00 a.m. to 3:00 p.m.
140th Ave SE to Blaine Dr Vic Paving and ADA Compliance - #9071

Highway: SR 169    Region: Northwest     County: King    Location: Milepost(s) 22.86 - 24.84
Contacts: Patrick Fuller, Project Engineer, 206-805-2960
Description: WSDOT contractor crews are repaving a stretch of SR 169 in Renton.
Project website
Work schedule:

  • Monday, July 17, to Friday, July 21 - The right lane of southbound SR 169 between Cedar River Park and 140th Way Southeast will be closed from 7 a.m. to 3:30 p.m. daily. This work is weather dependent.
  • Monday, July 17, to Friday, July 21 - The right lane of northbound SR 169 between 140th Way Southeast and Cedar River Park will be closed from 8:30 a.m. to 5 p.m. daily. This work is weather dependent.

Little Bear Creek Fish Barrier Removal - #8865

Highway: SR 202    Region: Northwest    County: King    Location: Milepost(s) 0.12 – 0.18
Contact: Dave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT contractor crews are building a buried bridge under SR 202 over Little Bear Creek in Woodinville and removing the existing culvert under the roadway.
Project website
Work schedule:

  • Friday, July 28, to the morning of Monday, July 31 – Both directions of SR 202/ 131st Avenue Northeast between SR 522 and Northeast 177th Place will be closed from 9:30 p.m. Friday, to 5 a.m. Monday.
Duvall Culvert Replacement Work

Highway: SR 203 Region: Northwest County: King Location: Milepost(s): 14.10 – 14.25
Contact: Shaun Tozer, City of Duvall project manager, 425-788-3434
Description: Contractor crews working for the City of Duvall will close SR 203/Main Street through Duvall for culvert replacement at Thayer Creek.
Work Schedule:

  • Monday, July 17, to Wednesday, July 26 – All lanes of State Route 203/Main Street between Northeast 143rd Place and Northeast 145th Street will be closed from 8 a.m. Monday, July 17, to 4 p.m. Wednesday, July 26.
White River Bridge to SR 164 Paving and ADA Compliance - #8994

Highway: SR 410    RegionNorthwest    County: King    Location: Milepost(s) 22.00 – 24.78
ContactMike Askarian, Project Engineer, 206-768-5861
Description: This project will repave the highway and install drainage near Mud Mountain Road to reroute the water to a nearby drainage pond. Crews will also relocate the traffic island at the SR 410 intersection with Cole Street in Enumclaw.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
Emergency Rock Slope Repair Work - #9115

Highway: SR 410    Region: Northwest    County: King    Location: Milepost(s) 51.30 - 51.70
ContactDave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT contractor crews are performing emergency rock slope repair work on SR 410 near Mount Rainier.
Work schedule:

  • This work is now complete.
S 168th St to S 112th St Vic Paving, ADA and Barrier Replacement - #9051

Highway: SR 509    Region: Northwest    County: King    Location: Milepost(s) 24.32 - 27.87
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repaving and installing concrete barriers on SR 509 in Burien.
Project website
Work schedule:

  • Sunday, July 16, to the morning of Friday, July 21 – One lane of northbound State Route 509 between South 168th Street and South 112th Street will be closed from 7 p.m. to 5 a.m. nightly.
  • Sunday, July 16, to the morning of Friday, July 21 – The northbound State Route 509 ramp to State Route 518 will be closed from 8 p.m. to 5 a.m. nightly.
  • Sunday, July 16, to the morning of Friday, July 21 – The westbound State Route 518 ramp to northbound State Route 509 will be closed from 11 p.m. to 5 a.m. nightly.
  • Sunday, July 16, to the morning of Friday, July 21- The northbound State Route 509 ramp to South 160th Street will be closed from 8 p.m. to 5 a.m. nightly.
  • Sunday, July 16, to the morning of Friday, July 21 - The northbound State Route 509 ramp to South 146th Street will be closed from 8 p.m. to 5 a.m. nightly.
  • Sunday, July 16, to the morning of Friday, July 21 - The South 128th Street ramp to northbound State Route 509 will be closed from 8 p.m. to 5 a.m. nightly.
  • Sunday, July 16, to the morning of Friday, July 21 - The northbound State Route 509 ramp to South 128th Street will be closed from 8 p.m. to 5 a.m. nightly.
West Approach Bridge North - #8625

Highway: SR 513    Region: Northwest    County: King    Location: Milepost(s) 0.00
Contact: Steve Strand, Project Engineer, 206-770-3565
Description: The West Approach Bridge North Project is the latest phase of construction of the SR 520 Bridge Replacement and HOV Program and will extend SR 520's three westbound lanes from the new floating bridge to the Montlake area in Seattle.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
I-405/SR 167 Interchange Direct Connector - #8811

Highway: SR 515    Region: Northwest    County: King    Location: Milepost(s) 6.93
Contact: Craig Smiley, Communications, 425-456-8624
Description: WSDOT contractor crews are building a new flyover ramp connecting the HOT lanes on SR 167 to the carpool lanes on I-405 in Renton. This ramp will improve traffic flow and safety at this critical interchange.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
NB S 260th St to Duwamish River Br Concrete Pavement Rehab - #8992

Highway: SR 516    Region: Northwest    County: King    Location: Milepost(s) 1.90
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are rehabilitating northbound I-5 between South 260th Street in Des Moines and the Duwamish River Bridge in Tukwila.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
SB S 320th St to Duwamish River Br Concrete Pavement Rehab - #8816

Highway: SR 516    Region: Northwest    County: King    Location: Milepost(s) 1.90
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are rehabilitating southbound I-5 between the Duwamish River Bridge in Tukwila and South 320th Street in Federal Way.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
102nd Pl SE Vic to 132nd Ave SE Paving and ADA Compliance - #9027

Highway: SR 516    RegionNorthwest    County: King    Location: Milepost(s) 7.14 – 9.44
ContactMike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are repaving a stretch of SR 516 in Kent.
Project website
Work schedule:

  • Monday, July 17, to the morning of Friday, July 21 – One lane in either direction of State Route 516/Kent-Kangley Road between 102 Place Southeast and 132nd Avenue Southeast will be closed from 8 p.m. to 5 a.m. nightly.
Des Moines Memorial Drive Interchange Improvements - #9078

Highway: SR 518    Region: Northwest    County: King    Location: Milepost(s) 0.18 - 0.65
ContactAleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are adding a new two-lane off-ramp from eastbound SR 518 to Des Moines Memorial Drive.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
S 168th St to S 112th St Vic – Paving, ADA, & Barrier Replacement - #9051

Highway: SR 518    RegionNorthwest    County: King    Location: Milepost(s) 00.50
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews will perform guardrail replacement and guardrail repair work on State Route 509 in Burien.
Work schedule:

  • Sunday, July 16, to the morning of Friday, July 21 – The westbound State Route 518 ramp to northbound State Route 509 will be closed from 11 p.m. to 5 a.m. nightly.
SB S 320th St to Duwamish River Br Concrete Pavement Rehab - #8816

Highway: SR 518    Region: Northwest    County: King    Location: Milepost(s) 3.81
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are rehabilitating southbound I-5 between the Duwamish River Bridge in Tukwila and South 320th Street in Federal Way.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
SB S 320th St to Duwamish River Br Concrete Pavement Rehab - #8816

Highway: SR 599    Region: Northwest    County: King    Location: Milepost(s) 0.00
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are rehabilitating southbound I-5 between the Duwamish River Bridge in Tukwila and South 320th Street in Federal Way.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
Green Creek Fish Barrier - #9019

Highway: SR 900    Region: Northwest    County: King    Location: Milepost(s) 15.80 - 16.00
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are removing and replacing a culvert under SR 900 in Renton.
Project website
Work schedule:

  • Monday, July 17, to Friday, July 21 – State Route 900/Renton Issaquah Road Southeast between Maple Street and 152nd Avenue Southeast will be down to a single lane from 9 a.m. to 3 p.m. daily.