Infrastructure

Tacoma Road Closures Begin for Construction and Maintenance

Thursday, September 10, 2026

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Multiple road construction and maintenance projects began in Pierce County on Monday, Sept. 8, according to Washington State Department of Transportation (WSDOT) public records.

The most significant project is a roundabout construction on SR 507 at 208th Street South near Spanaway, which will cause one-way alternating traffic around the clock through Sept. 14. Other closures include nightly lane shifts on I-405 between Sept. 8 and 10, a northbound I-5 lane closure from Sept. 10 to 11, and ongoing lane closures on SR 515 through Sept. 18.

WSDOT notes that crews may not work every day at all sites, and drivers should expect delays during the specified hours. Detours will be in place for some closures.

📄 Source: WSDOT — Highway Construction & Closures — https://wsdot.wa.gov/travel/road-construction

Source receipts6 of 12 claims supported · 50%

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Multiple road construction and maintenance projects began in Pierce County on MondayNo usable supporting receipt — unverified.
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The projects began on Sept. 8No usable supporting receipt — unverified.
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The projects began according to Washington State Department of Transportation (WSDOT) public recordsNo usable supporting receipt — unverified.
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The most significant project is a roundabout construction on SR 507 at 208th Street South near SpanawayNo usable supporting receipt — unverified.
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The roundabout construction will cause one-way alternating traffic around the clock“Expect one-way alternating traffic around the clock on SR 507 at 208th Street South near Spanaway for a roundabout project.”
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The roundabout construction will last through Sept. 14“Effective: Sep 8, 2026, 9:55 AM Expected end: Sep 14, 2026, 7:00 AM”
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Other closures include nightly lane shifts on I-405 between Sept. 8 and 10No usable supporting receipt — unverified.
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A northbound I-5 lane closure will occur from Sept. 10 to 11“005 [17 mi from Tacoma]: From 10 p.m. Thursday, Sept. 10 to 5 a.m. Friday, Sept. 11 the right lane of northbound Interstate 5 from South 144th Street to State Route 599 (milepost 155) will close for maintenance.”
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Ongoing lane closures on SR 515 will last through Sept. 18“515 [19 mi from Tacoma]: 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. The sidewalk in this area will also close.”
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WSDOT notes that crews may not work every day at all sites“Travelers may not see crews working every day at both sites.”
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Drivers should expect delays during the specified hoursNo usable supporting receipt — unverified.
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Detours will be in place for some closures“A signed detour will be in place.”