Infrastructure

I-405, SR 527 work through July 31

Tuesday, July 28, 2026

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Starting Monday, July 27, multiple Washington State Department of Transportation (WSDOT) projects will cause lane closures and traffic shifts on Longview-area highways through July 31.

Southbound I-405 will have up to two lanes closed nightly from 11 p.m. to 4 a.m. between mileposts 18. 11 and 16. 45, and another section closed nightly from 9:30 p.m. to 5 a.m. between mileposts 9 and 6. 5. Southbound SR 527 will have its center lane closed nightly from 9 p.m. to 12 a.m. between 214th Street Southeast and the I-405 off-ramp.

WSDOT says flaggers and pilot cars will direct traffic during the closures, with detours in place for the I-405 off-ramp closure. The work includes paving, utility projects, and construction, with all projects scheduled to end by 5 a.m. on Friday, July 31.

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

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Starting Monday, July 27, multiple Washington State Department of Transportation projects will cause lane closures and traffic shifts on Longview-area highways through July 31No usable supporting receipt — unverified.
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Southbound I-405 will have up to two lanes closed nightly from 11 p.m. to 4 a.m. 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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Another section of Southbound I-405 will have up to two lanes closed nightly from 9:30 p.m. to 5 a.m. between mileposts 9 and 6. 5“Up to two lanes of southbound I-405 from Lake Washington Boulevard Southeast (milepost 9) to North 30th Street (milepost 6.5) will be closed nightly, 9:30 p.m. Monday, July 27 – 5 a.m. Friday, July 31.”
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Southbound SR 527 will have its center lane closed nightly from 9 p.m. to 12 a.m. between 214th Street Southeast and the I-405 off-ramp“527: The center lane of southbound SR 527 from 214th Street Southeast to the southbound I-405 off-ramp will be closed nightly from 9 p.m. Monday, July 27 to 12 a.m. Thursday, July 30.”
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WSDOT says flaggers and pilot cars will direct traffic during the closures“Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”
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Detours will be in place for the I-405 off-ramp closure“The southbound I-405 off-ramp to Northeast 30th Street will be closed nightly, 9 p.m. Monday, July 27 – 5 a.m. Wednesday, July 29. A signed detour will be in place.”
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The work includes paving, utility projects, and construction“Flaggers and pilot cars will direct alternating traffic through the remaining open lane.”
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All projects are scheduled to end by 5 a.m. on Friday, July 31“Expected end: Jul 31, 2026, 5:00 AM”