Infrastructure

I-5, I-405, and SR 527 closures announced

Wednesday, July 29, 2026

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WSDOT announced multiple road closures effective July 27 through July 31, 2026. Northbound I-5 will have intermittent lane closures between exits 59 and 60 from 9 p.m. July 29 to 5 a.m. July 30, with the Exit 59 on-ramp closed. Southbound I-405 will have up to two lanes closed nightly from 11 p.m. to 4 a.m. through July 31.

SR 527 will have its center lane closed nightly from 9 p.m. July 27 to 12 a.m. July 30. State Route 203 will have one lane closed nightly from 7 p.m. Sunday to 6 a.m. Friday through July 31 for paving. Route 96 will see alternating traffic with flaggers daily from 7 a.m. to 2 p.m. through July 31. SR 502 will remain under a single-lane closure from 7 a.m. to 5 p.m. daily until August 14.

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

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WSDOT announced multiple road closures effective July 27 through July 31, 2026No usable supporting receipt — unverified.
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Northbound I-5 will have intermittent lane closures between exits 59 and 60“The left lane of northbound I-5 will close intermittently for about 5 minutes at a time between Exit 59 for SR 506 and Exit 60 for Toledo-Vader Road (mileposts 59 to 60).”
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The intermittent lane closures on Northbound I-5 will be from 9 p.m. July 29 to 5 a.m. July 30“005: From 9 p.m., Wednesday, July 29 to 5 a.m., Thursday, July 30: • The left lane of northbound I-5 will close intermittently for about 5 minutes at a time between Exit 59 for SR 506 and Exit 60 for Toledo-Vader Road (mileposts 59 to 60). ”
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The Exit 59 on-ramp will be closed“The northbound I-5 on-ramp at Exit 59 will close during construction.”
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Southbound I-405 will have up to two lanes closed nightly“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 closure of Southbound I-405 lanes will be from 11 p.m. to 4 a.m.“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 closure of Southbound I-405 lanes will be through 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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SR 527 will have its center lane closed nightly“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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The closure of SR 527 center lane will be from 9 p.m. July 27 to 12 a.m. July 30“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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State Route 203 will have one lane closed nightlyNo usable supporting receipt — unverified.
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The closure of State Route 203 lane will be from 7 p.m. Sunday to 6 a.m. FridayNo usable supporting receipt — unverified.
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The closure of State Route 203 lane will be through July 31“203: From 7 p.m. to 6 a.m. Sunday nights through Friday mornings beginning Monday, July 27, one lane of State Route 203 will be closed for a paving project between just south of Duvall to the Monroe city limits (mileposts 12.53 to 23.20). Flaggers and pilot cars will direct alternating traffic through the remaining open lane. Effective: Jul 24, 2026, 12:48 PM Expected end: Jul 31, 2026, 6:00 AM”
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Route 96 will see alternating traffic with flaggers daily“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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The alternating traffic on Route 96 will be from 7 a.m. to 2 p.m.“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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The alternating traffic on Route 96 will be through 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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SR 502 will remain under a single-lane closure from 7 a.m. to 5 p.m. daily“502: Tuesday, June 16, through Friday, Aug. 14: Travelers on eastbound SR 502/West Main Street will see a daily single-lane closure from 7 a.m. to 5 p.m. near Northwest 15th Avenue (milepost 5.9) for safety and mobility improvement work.”
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The single-lane closure on SR 502 will be until August 14“502: Tuesday, June 16, through Friday, Aug. 14: Travelers on eastbound SR 502/West Main Street will see a daily single-lane closure from 7 a.m. to 5 p.m. near Northwest 15th Avenue (milepost 5.9) for safety and mobility improvement work.”