I-5, SR 527 closures in Aberdeen area

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  Starting July 29, several road closures and lane restrictions began on major routes near Aberdeen, WANo usable supporting receipt — unverified.
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  The most significant changes include a right shoulder closure on northbound I-5 from milepost 9. 3 to 11. 3No usable supporting receipt — unverified.
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  Intermittent lane closures on northbound I-5 between mileposts 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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  Nightly closures on southbound I-405 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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  WSDOT reported that these closures are for maintenance and construction projects“005: Maintenance on I-5 northbound from milepost 9.3 near 179th Street to milepost 11.3 near North Bound Gee Creek Rest Area will have the right shoulder closed, use caution beginning at 7:31 am on July 29, 2026 until further notice.”
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  The I-5 shoulder closure is effective July 29 at 7:31 a.m.“005: Maintenance on I-5 northbound from milepost 9.3 near 179th Street to milepost 11.3 near North Bound Gee Creek Rest Area will have the right shoulder closed, use caution beginning at 7:31 am on July 29, 2026 until further notice. Effective: Jul 29, 2026, 7:31 AM”
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  The northbound I-5 lane closures run from July 29 at 9 p.m. to July 30 at 5 a.m.“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 southbound I-405 closures will continue nightly until July 31 at 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. Effective: Jul 27, 2026, 12:00 AM Expected end: Jul 31, 2026, 4:00 AM”
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  Drivers are urged to plan ahead and expect delays“Plan ahead and expect delays!”
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  Additional work includes a nightly closure of the center lane on southbound SR 527 from July 27 to 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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  Ongoing lane alternation on State Route 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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  The most extended project is on State Route 203No usable supporting receipt — unverified.
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  State Route 203 will have one lane closed nightly from July 27 to 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”