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King County Construction

Last update: 11:45 a.m. Friday, Dec. 2

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 167 | SR 202SR 203SR 513SR 515 | SR 516 | SR 518SR 522 | SR 599 |

 

SR 18

8th to 277th Southbound HOT Lane - #8665

Highway: SR 18    Region: Northwest    County: King    Location: Milepost(s) 2.88
Contacts: Sharif Shaklawun, Project Engineer, 425-456-8639, and Craig Smiley, Communications, 425-450-2559
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.
NW Region Guardrail & Glarescreen - #8923

Highway: SR 18    RegionNorthwest    County: King    Location: Milepost(s) 22.14 – 25.05
ContactMike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are installing guardrail and glare screens along SR 18 near Tiger Mountain.
Work schedule:

  • No lane or ramp closures scheduled.
 

SR 99

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:

Aurora Ave - George Washington Memorial Br 99/560 (Stage 1) - #8727

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 34.17 – 34.73
Contact: Dave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT contractor crews are cleaning and painting portions of the SR 99 George Washington Memorial Bridge, which is more popularly and commonly known as the Aurora Avenue Bridge.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.

 

SR 167

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, 425-456-8639, and Craig Smiley, Communications, 425-450-2559
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

  • Monday, Nov. 28, to the morning of Tuesday, Nov. 29 - The off-ramp to 15th St SW from northbound SR 167 will be closed from 9 p.m. to 5 a.m. for road construction.
  • Tuesday, Nov. 29, to the morning of Wednesday, Nov. 30 - The westbound 15th St SW on-ramp to southbound SR 167 will be closed from 9 p.m. to 5 a.m. for road construction.
  • Tuesday, Nov. 29, to the morning of Wednesday, Nov. 30 - The eastbound 15th St SW on-ramp to southbound SR 167 will be closed from 9 p.m. to 5 a.m. for road construction.
  • Wednesday, Nov. 30, to the morning of Thursday, Dec. 1 - The off-ramp to Ellingson Rd from southbound SR 167 will be closed from 9 p.m. to 4 a.m. for road construction.
  • Wednesday, Nov. 30, to the morning of Thursday, Dec. 1 - The Ellingson Rd on-ramp to northbound SR 167 will be closed from 9 p.m. to 5 a.m. for road construction.
  • Thursday, Dec. 1, to the morning of Friday, Dec. 2 - The 8th St E on-ramp to southbound SR 167 will be closed from 9 p.m. to 5 a.m. for road construction.

LANE CLOSURES

  • Monday, Nov. 28, to the morning of Friday, Dec. 2 - Two lanes of southbound SR 167 between 3rd Ave SW and 8th St E will be closed nightly from 11 p.m. to 5 a.m. for road construction.
  • Monday, Nov. 28, to the morning of Friday, Dec. 2 - One lane of northbound SR 167 between 8th St E and 3rd Ave SW will be closed nightly from 10 p.m. to 4 a.m. for road construction.

CITY STREET CLOSURES

  • Monday, Nov. 28, to the morning of Friday, Dec. 3 - One lane of westbound Ellingson Rd between Frontage Rd and West Valley Hwy S will be closed daily from 9 a.m. to 2:30 p.m. for road construction.
  • Monday, Nov. 28, to the morning of Friday, Dec. 3 - One lane of eastbound 8th St E between W Valley Hwy E and Thornton Ave SW 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: I-405    Region: Northwest    County: King    Location: Milepost(s) 24.80 – 26.26
Contact: Anne Broache, Communications, 425-450-2729
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.
 

SR 202

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:

  • Sunday, Dec. 11, to the morning of Thursday, Dec. 15 - 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.

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.
 

SR 203

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.
 

SR 513

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:

  • Until further notice - There will be intermittent rolling slowdowns on the Montlake Boulevard East/SR 513 on-ramp to eastbound SR 520 from 9 p.m. to 5 a.m. nightly, Monday to Friday.
    Until further notice – A single lane of Lake Washington Boulevard East between Montlake Boulevard East/SR 513 and 24th Avenue East will be intermittently closed from 9 p.m. to 5 a.m. nightly, Monday to Friday. Flaggers will alternate traffic through the open lane.
 

SR 515

I-405/SR 167 Interchange Direct Connector - #8811

Highway: SR 515    Region: Northwest    County: King    Location: Milepost(s) 6.93
Contact: Anne Broache, Communications, 425-450-2729
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.
 

SR 516

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:

  • Monday, Dec. 5, to the morning of Tuesday, Dec. 6 – The southbound I-5 off-ramp to SR 516 will be closed from 9 p.m. to 5 a.m. A signed detour will be in place. This work is weather dependent.
 

SR 518

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.
 

SR 522

Emergency Tree Removal - #8967

Highway: SR 522    Region: Northwest    County: King    Location: Milepost(s) 12.12 – 12.29
Contact: Dave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT contractor crews are removing diseased trees suffering from laminated root rot as a safety precaution in the northeast corner of the SR 522/SR 202 interchange in Woodinville.
Work schedule:

  • No lane or ramp closures are scheduled.
 

SR 599

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:

  • Thursday, Dec. 8, to the morning of Friday, Dec. 9 – The right lane of the eastbound SR 599 ramp to southbound I-5 will be closed from 9 p.m. to 5 a.m. This work is weather dependent.