I-5, SR 512, and I-90 closures scheduled for September 2026

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  The Washington State Department of Transportation (WSDOT) announced several road closures and detours effective this week for construction and maintenance projects.“WSDOT highway construction and road closures within 50 miles of Tacoma — 9/4/2026:”
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  The right lane of northbound I-5 will close from East 28th Street in Tacoma to 20th Street East in Fife through August 2027 for the City of Fife Port of Tacoma Phase 2 project.“The right lane of northbound I-5 is closed from East 28th Street in Tacoma to 20th Street East in Fife. The lane closure will remain in place through August 2027. The exit to 20th Street East remains open. Work is for the City of Fife <a href="https://fifewa.gov/m/newsflash/home/detail/186">Port of Tacoma Phase 2 project</a>.”
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  A ramp from 9th Street SW to westbound SR 512 in Puyallup will close for maintenance on September 8.“From 10 a.m.. to 4 p.m. Tuesday, Sept. 8, the ramp from 9th Street SW to westbound SR 512 in Puyallup will close for maintenance. During the work, travelers will detour to the 31st Avenue SW ramp.”
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  A detour to the 31st Avenue SW ramp will be in place for the ramp closure from 9th Street SW to westbound SR 512 in Puyallup.“During the work, travelers will detour to the 31st Avenue SW ramp.”
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  I-90 will close all lanes westbound from Island Crest Way to the Mount Baker tunnel from 10 p.m. Friday, September 11 to 6 a.m. Saturday, September 12.“From 10 p.m. Friday, Sept. 11 to 6 a.m. Saturday, Sept. 12 all lanes of westbound Interstate 90 from Island Crest Way (milepost 7) to the west portal of the Mount Baker tunnel (milepost 3) will close for maintenance. The westbound I-90 on-ramps from 76th Avenue Southeast/North Mercer Way, Island Crest Way and West Mercer Way will also close.”
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  A one-way alternating traffic schedule on SR 507 near Spanaway will be in place for a roundabout project.“Expect one-way alternating traffic around the clock on SR 507 at 208th Street South near Spanaway for a roundabout project. The contractor has one crew working between two roundabout sites. Travelers may not see crews working every day at both sites.”
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  Southbound SR 515 lane closures will occur from September 8 to 18.“From noon to 3 p.m. Tuesday, Sept. 8 and daily from 9 a.m. to 3 p.m. (except Saturday, Sunday) beginning Wednesday, Sept. 9 to 3 p.m. Friday, Sept. 18, the right lane of southbound State Route 515 from the Interstate 405 interchange to South Puget Drive (milepost 6) will close.”
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  Multiple SR 410 detours will be in place for utilities work starting September 9.“Daily (except Friday, Saturday, Sunday) from 8 a.m. to 4 p.m. beginning Wednesday, Sept. 9 until further notice: State Route 410 traffic will alternate with flaggers in multiple locations from the Scatter Creek Bridge (milepost 31) to Twin Creek Bridge (milepost 38) for utilities work.”