Road closures pile up this week as WSDOT races to beat fall weather

The Washington State Department of Transportation (WSDOT) is working to complete pavement repairs, landscaping, demolition, utility work, sign installations, and maintenance before the weather slows progress.

Drivers should plan for lane and ramp closures across the region, including along I-5, I-90, SR 520, and other highways.

I-5 pavement repairs between Mountlake Terrace and Seattle

WSDOT has scheduled crack sealing and pavement repairs on I-5 between Mountlake Terrace and Seattle’s University District through Friday morning. Multiple lane and ramp closures will affect travel times.

The following closures will begin as early as 9 p.m. and end at 5 a.m. the next day.

Tuesday night, Oct. 13:

• Up to four lanes of southbound I-5 between SR 104 and NE 115th St.
• Two lanes of northbound I-5 between NE 40th and 75th streets.
• Northbound I-5 on- and off-ramps at S 272nd St.
• NE 85th St. on-ramp to southbound I-5.
• NE 175th St. on-ramp to southbound I-5.
• King County Metro North Bus Base on-ramp to southbound I-5.

Wednesday night, Oct. 14:

• Up to three lanes of northbound I-5 between NE 40th and 115th streets.
• Up to three lanes of southbound I-5 between SR 104 and NE 75th St.
• Northbound I-5 on- and off-ramps at S 272nd St.
• Northbound I-5 off-ramp to NE 85th St.
• NE 70th St. on-ramp to northbound I-5.
• NE 85th St. on-ramp to southbound I-5.
• King County Metro North Bus Base on-ramp to southbound I-5.

Thursday night, Oct. 15:

• Up to three lanes of northbound I-5 between NE 40th and 115th streets.
• Up to three lanes of southbound I-5 between NE 115th and 75th streets.
• Northbound I-5 off-ramp to NE 85th St.
• NE 70th St. on-ramp to northbound I-5.

Overnight pavement repairs on SR 202

WSDOT has two nights of pavement work planned along a 3-mile stretch of SR 202 between Redmond and Woodinville.

Traffic will alternate from 9 p.m. to 5 a.m. the following morning on Wednesday and Thursday nights, Oct. 14-15, with one-lane reductions at the following locations:

• SR 202 between NE 143rd St. and 156th Ave. NE.
• SR 202 between 361st Ave. SE and just east of 372nd Ave. SE.

The work requires dry weather and may be rescheduled if rain is forecast.

Daytime SR 202 work near the Snoqualmie River

Landscaping work along SR 202 in Fall City will require alternating traffic just east of the SR 202/SR 203 roundabout from 9 a.m. to 2 p.m. Tuesday and Wednesday, Oct. 13-14.

The work affects a small section of roadway. Drivers should expect brief delays and watch for workers alongside the road.

This is the final stage of a project addressing erosion caused by major storms in December 2025 and March 2026.

SR 520 ramp closures in Montlake

WSDOT has overnight closures scheduled in both directions of SR 520 through Montlake, from 10 p.m. to 6 a.m.

Crews will close the eastbound SR 520 off-ramp to Montlake Blvd. nightly Monday, Oct. 12, through Thursday, Oct. 15, to continue removing the old off-ramp.

Drivers entering eastbound SR 520 from I-5 will not be able to exit at Montlake Blvd. and will continue across Lake Washington, paying the SR 520 bridge toll. Those heading to Montlake should use alternate routes.

The Montlake Blvd. on-ramp to westbound SR 520 will also close overnight Tuesday, Oct. 13, and Wednesday, Oct. 14, so crews can move equipment into the work zone. Drivers will not have access to westbound SR 520 from Montlake during those hours.

More westbound SR 520 closures later this month

Excavation work will close the westbound SR 520 off-ramps to northbound I-5 and E Roanoke St. from 10 p.m. to 6 a.m. nightly during two periods:

• Monday, Oct. 19, through Thursday, Oct. 22.
• Monday, Oct. 26, through Thursday, Oct. 29.

Westbound SR 520 traffic continuing past the Montlake Blvd. and Lake Washington Blvd. exits will detour to southbound I-5.

A single lane of westbound SR 520 between Montlake Blvd. and I-5 will also close.

Overnight I-90 closures near SR 18 in Snoqualmie

Nightly closures are scheduled in both directions of I-90 near the SR 18 interchange in Snoqualmie.

From 7 p.m. to 5 a.m. nightly, beginning Sunday, Oct. 11, through Friday morning, Oct. 16, crews will close the Snoqualmie Pkwy. on-ramp to westbound I-90. The right lane of the eastbound I-90 off-ramp to westbound SR 18 will also close.

Drivers should seek alternate routes or plan for delays.

The closures support utility work to finalize the widening of SR 18 between I-90 and Deep Creek and improvements at the I-90/SR 18 interchange.

Southbound I-5 lane closures in Kent and Federal Way

Sign installations and the removal of temporary barriers will close a couple of lanes of southbound I-5 between SR 516 and S 272nd St.

Drivers should anticipate minor backups along the 2-mile stretch from 10 p.m. to 6 a.m. nightly, beginning Monday, Oct. 12, through Friday morning, Oct. 16.

The work is part of the SR 509 Completion Project.

Pierce County closures on I-5, SR 167, SR 99 and SR 509

Sign installation work will require lane closures beginning Monday, Oct. 12, as part of the SR 167 Completion Project.

SR 167, Monday night, Oct. 12, into Tuesday morning, Oct. 13:

• One northbound lane between SR 509 and I-5 will close from 10 p.m. to 4 a.m. One lane will remain open.
• One southbound lane between I-5 and SR 509 will close from 8 p.m. to 5 a.m. One lane will remain open.

SR 99, Monday and Tuesday, Oct. 12-13:

• One southbound lane between 70th Ave. E and Wapato Way E will close daily from 7 a.m. to 3 p.m. One lane will remain open.

SR 509, Wednesday night, Oct. 14, through Friday morning, Oct. 16:

• One lane in each direction between Alexander Ave. E and Taylor Way E will close nightly from 8 p.m. to 5 a.m. One lane will remain open in each direction.

I-5, Thursday night, Oct. 15, into Friday morning, Oct. 16:

• One northbound lane from just north of Port of Tacoma Rd. to the 375th St. E overpass will close from 7 p.m. to 4:30 a.m. One lane will remain open.
• One southbound lane from the 375th St. E overpass to just north of Port of Tacoma Rd. will close from 7:30 p.m. to 6 a.m. One lane will remain open.

Southbound I-5 exit to Pacific Ave. closing in Olympia

The southbound I-5 off-ramp to Pacific Ave. in Olympia will close Friday, Oct. 16, from 8 a.m. to 3 p.m.

Crews will trim trees, cut back brush, repair guardrail, and sweep the roadway ahead of winter weather.

The northbound I-5 exit to Pacific Ave. will remain open.

Overnight ramp closures in Tumwater

Pavement repairs will close access from US 101 to northbound I-5 and from Deschutes Way to northbound I-5 in Tumwater.

The closures will run from 9 p.m. Thursday, Oct. 15, until 5 a.m. Friday, Oct. 16.

Drivers should allow additional travel time. Signed detours will be posted.

Nate Connors is a traffic reporter for KIRO Newsradio. Follow him on X. Read more of his stories here. Submit news tips here.

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