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King County Construction

Last update: 11:40 a.m. Friday, March 24

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 164 |SR 167 | SR 202SR 203 | SR 513SR 515 | SR 516 | SR 518 | SR 599 |

8th to 277th Southbound HOT Lane - #8665

Highway: SR 18    Region: Northwest    County: King    Location: Milepost(s) 2.88
Contacts: Sharif Shaklawun, Project Engineer, 425-450-2559, 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:

  • No lane or ramp closures are scheduled.
Auburn Bridge Inspection Work

Highway: SR 18    RegionNorthwest    County: King    Location: Milepost(s) 6.60
Contact: Ally Barrera, Communications, 206-440-4457
Description: WSDOT maintenance crews are inspecting a bridge on SR 18 in Auburn.
Work schedule:

  • Saturday, April 1 – The left lane of eastbound SR 18 at the Green River Bridge will be closed from 6:30 to 9:30 a.m.

Downtown Seattle/SODO Construction Closures

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 29.00 – 34.30
Contact: En Lammers, Communications, 206-805-2874
Description: There are several projects affecting vehicle and pedestrian traffic on SR 99 and city streets through downtown Seattle and SODO.
Work schedule:

Hydraulic Pump Replacement Work

Highway(s): SR 99 and SR 509    RegionNorthwest    County: King    Location: Milepost(s): SR 509 29.60 – SR 99 26.93
Contact: Ally Barrera, Communications, 206-440-4457
Description: WSDOT maintenance crews will replace a temporary hydraulic pump on the 1st Avenue South Bridge.
Work schedule:

  • Saturday, April 1 – The two left southbound lanes of the 1st Avenue South Bridge will be closed from 6:30 a.m. to 11:30 a.m.
SE 408th Street to 196th Avenue SE Vic – Pavement Repair and ADA - #8988

Highway: SR 164    RegionNorthwest    County: King    Location: Milepost(s) 8.07 – 10.23
Contacts: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repairing damaged concrete panels on SR 164 between Southeast 408th Street and 196th Avenue Southeast in Auburn.
Project website
Work schedule:

  • **HIGH IMPACT** Monday, March 27, to Friday, April 7 – A single lane in either direction of SR 164 between 408th Street and 196th Avenue Southeast will be closed from 9 a.m. to 3 p.m. daily. A pilot car will alternate traffic through the open lane.
  • **HIGH IMPACT** Monday, March 27, to the morning of Thursday, April 6 – A single lane in either direction of SR 164 between 408th Street and 196th Avenue Southeast will be closed from 7 p.m. to 5 a.m. nightly. A pilot car will alternate traffic through the open lane.

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, 425-450-2559, 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

  • No lane closures are scheduled.

CITY STREET CLOSURES

  • Monday, March 13 to Friday, March 17 - One lane of eastbound Eighth Street East between West Valley Highway East and Thornton Avenue Southwest will be closed daily from 9 a.m. to 2:30 p.m. for road construction.
  • Monday, March 13 to Friday, March 17 - One lane of westbound Eighth Street East between Thornton Avenue Southwest and West Valley Highway East will be closed daily from 9 a.m. to 2:30 p.m. for road construction.
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

  • Saturday, March 25, to the morning of Sunday, March 26 – The southbound SR 167 on-ramp to northbound I-405 will be closed from 10 p.m. to 6:00 a.m. A signed detour will be in place.
  • Saturday, March 25, to the morning of Wednesday, March 29 –The northbound SR 167 off-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.

Lane closures

  • Saturday, March 25, to the morning of Friday, March 31 – One lane of northbound SR 167 between South 43rd Street and I-405 will be closed nightly from 9 p.m. to 4:30 a.m.
  • Saturday, March 25, to the morning of Sunday, March 26 – One lane of southbound SR 167 between I-405 and South 43rd Street will be closed from 9 p.m. to 4:30 a.m.

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 webpage
Work schedule:

  • Until further notice - A single lane in either direction of SR 202/ 131st Avenue Northeast between SR 522 and Northeast 177th Place will be closed from 9 p.m. to 5 a.m. nightly. On Fridays, a single lane will be closed from 10 p.m. to 7 a.m.

NE 124th St Vic to Tolt River Bridge Paving and ADA Compliance - #8866

Highway: SR 202    Region: Northwest    County: King    Location: Milepost(s) 4.40 – 13.93
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repaving areas of SR 202 in Redmond and between Redmond and Fall City and upgrading 17 pedestrian ramps in Redmond.
Work schedule:

  • No lane or ramp closures are scheduled.
NE 124th St Vic to Tolt River Bridge Paving and ADA Compliance - #8866

Highway: SR 203    Region: Northwest    County: King    Location: Milepost(s) 0.09 – 5.23
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repaving SR 203 between Fall City and Carnation.
Project webpage
Work schedule:

  • No ramp or lane closures are scheduled.
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.
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.
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.