Infrastructure

I-405, SR 529 closures impact Everett commuters

Tuesday, August 25, 2026

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I-405 will have multiple closures starting Monday, including northbound lanes from milepost 0 to 1. 5 nightly from 9 p.m. to 5 a.m. through Wednesday, and a three-lane closure from Northeast 85th Street to Northeast 100th Street from 11 p.m. Friday to 4 a.m. Monday.

SR 529 northbound will have a left lane closure just south of 19th Street starting Tuesday, and SR 20 near Loup Loup Pass will have alternating one-lane traffic until Aug. 27. SR 9 near Kalloch Road will have single-lane traffic for 42 days through Sept. 14 for fish passage construction.

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

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I-405 will have multiple closures starting Monday“405: Up to two lanes of northbound I-405 from I-5 (milepost 0) to milepost 1.5 will be closed nightly, 9 p.m. Monday, Aug. 24 – 5 a.m. Wednesday, Aug. 26.”
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Northbound lanes from milepost 0 to 1.5 will have nightly closures from 9 p.m. to 5 a.m.“405: Up to two lanes of northbound I-405 from I-5 (milepost 0) to milepost 1.5 will be closed nightly, 9 p.m. Monday, Aug. 24 – 5 a.m. Wednesday, Aug. 26.”
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The nightly closures will continue through WednesdayNo usable supporting receipt — unverified.
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A three-lane closure from Northeast 85th Street to Northeast 100th Street will occur from 11 p.m. Friday to 4 a.m. Monday“405: Up to three lanes of northbound I-405 will close from the Northeast 85th Street on-ramp to Northeast 100th Street from 11 p.m. Friday Aug. 28 to 4 a.m. Monday, Aug. 31. A signed detour will be in place.”
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SR 529 northbound will have a left lane closure just south of 19th Street starting Tuesday“529: On SR 529 northbound just south of 19th St (MP 2) just south of Alverson Blvd (MP 4) the left lane is closed due to maintenance. Effective: Aug 25, 2026, 8:57 AM”
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SR 20 near Loup Loup Pass will have alternating one-lane traffic until Aug. 27“020: Travelers on SR 20 near Loup Loup Pass will encounter slowdowns and delays while contractor crews perform pavement repairs and paving throughout the pass Mondays to Thursdays from 6 a.m. to 8 p.m. until Aug. 27. Expect alternating, one-lane, two-way traffic, automatic flaggers, temporary rumble strips and reduced speed limits.”
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SR 9 near Kalloch Road will have single-lane traffic for 42 days through Sept. 14“SR 9 is reduced to a single lane near Kalloch Road (MP 59) with a signal alternating northbound and southbound traffic through a bypass road for 42 days, until Sept. 14 for fish passage construction. Expect delays in the area.”
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The single-lane traffic on SR 9 near Kalloch Road is for fish passage construction“SR 9 is reduced to a single lane near Kalloch Road (MP 59) with a signal alternating northbound and southbound traffic through a bypass road for 42 days, until Sept. 14 for fish passage construction.”