Infrastructure

I-405, SR 532, and SR 522 closures for maintenance

Friday, July 31, 2026

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Multiple Washington State Department of Transportation (WSDOT) projects begin this week with lane closures affecting Tacoma-area highways. I-405 will have southbound lane closures nightly from July 27 to July 31 between mileposts 18. 11 and 16. 45. SR 532 will shift westbound traffic between mileposts 4 and 3 from August 2 to August 3. SR 522 will close its right lane northbound from August 5 to August 6 between mileposts 12 and 13.

WSDOT's notices detail specific times and locations for each closure, including alternating traffic with flaggers on SR 96 from July 27 to July 31 and lane closures on SR 203 from July 27 to July 31. Residents should expect delays during overnight and early morning hours when these closures are active. The department states that pilot cars and flaggers will direct traffic through affected areas.

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

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Multiple Washington State Department of Transportation (WSDOT) projects begin this weekNo usable supporting receipt — unverified.
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Lane closures will affect Tacoma-area highwaysNo usable supporting receipt — unverified.
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I-405 will have southbound lane closures nightly from July 27 to July 31“405: Monday, July 27 to the morning of Friday, July 31: Up to two lanes of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 11 p.m. – 4 a.m.”
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The southbound lane closures on I-405 are between mileposts 18. 11 and 16. 45“405: Monday, July 27 to the morning of Friday, July 31: Up to two lanes of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 11 p.m. – 4 a.m.”
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SR 532 will shift westbound traffic between mileposts 4 and 3 from August 2 to August 3“532: From 9 p.m. Sunday, Aug. 2 to 4 a.m. Monday, Aug. 3, the westbound traffic on SR 532/Camano Island Highway between 102nd Avenue Northwest (milepost 4) and 104th Drive Northwest (milepost 3) will see a traffic shift for maintenance paving.”
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SR 522 will close its right lane northbound from August 5 to August 6“522: From 8 p.m. Wednesday, Aug. 5 to 3 a.m. Thursday, Aug. 6, the right lane of northbound State Route 522 from State Route 202/132nd Avenue to the State Route 9 overpass (milepost 12-13) will close for maintenance.”
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The right lane closure on SR 522 is between mileposts 12 and 13“522: From 8 p.m. Wednesday, Aug. 5 to 3 a.m. Thursday, Aug. 6, the right lane of northbound State Route 522 from State Route 202/132nd Avenue to the State Route 9 overpass (milepost 12-13) will close for maintenance.”
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WSDOT's notices detail specific times and locations for each closure“405: Monday, July 27 to the morning of Friday, July 31: Up to two lanes of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 11 p.m. – 4 a.m.”
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Alternating traffic with flaggers will be on SR 96 from July 27 to July 31“096: Daily from 7 a.m. to 2 p.m. beginning Monday, July 27 to 2 p.m. Friday, July 31, State Route 96 traffic will alternate with flaggers from East Lowell Larimer Road (milepost 4) to State Route 9 (milepost 6) for utilities work.”
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Lane closures will be on SR 203 from July 27 to July 31No usable supporting receipt — unverified.
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Residents should expect delays during overnight and early morning hoursNo usable supporting receipt — unverified.
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These delays will occur when the closures are activeNo usable supporting receipt — unverified.
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The department states that pilot cars and flaggers will direct traffic through affected areas“Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”