WSDOT Closes Lanes for Repairs in Centralia–Chehalis

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  WSDOT announced multiple highway closures and lane reductions effective this week in Centralia–ChehalisNo usable supporting receipt — unverified.
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  The closures include one general-purpose lane of eastbound SR 522 from 8 p.m. Tuesday through 4:30 a.m. Friday“405: One general-purpose lane of eastbound SR 522 from Campus Way Northeast (milepost 10.4) to 131st Avenue Northeast (milepost 11.4) will be closed nightly from 8 p.m. Tuesday, August 18 to 4:30 a.m. Friday, August 21.”
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  The closures include one general-purpose lane of eastbound SR 522 from August 18–21“405: One general-purpose lane of eastbound SR 522 from Campus Way Northeast (milepost 10.4) to 131st Avenue Northeast (milepost 11.4) will be closed nightly from 8 p.m. Tuesday, August 18 to 4:30 a.m. Friday, August 21.”
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  A single lane of US 12 over I-5 will close nightly from 7:30 p.m. Monday, August 10, to 6 a.m. Thursday, August 20“012: From 7:30 p.m. Monday, Aug. 10 to 6 a.m. Thursday, Aug. 20: A single lane of US 12 over I-5 (milepost 66.5) will close nightly for bridge repairs.”
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  The northbound State Route 99 First Avenue South Bridge will close from 5 a.m. Saturday, August 22, to 11:59 p.m. Sunday, August 23“099: From 5 a.m. Saturday, Aug. 22 to 11:59 p.m. Sunday, Aug. 23, the northbound State Route 99 First Avenue South Bridge will close from State Route 509 to East Marginal Way South (milepost 27). The northbound SR 99/Holden Street on-ramp to State Route 509 and the northbound SR 99 off-ramp to South Michigan Street will also close.”
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  These closures support bridge repairs, guardrail installation, and pavement work“These closures support ongoing guardrail installation on eastbound I-90.”
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  Travelers are advised to expect delays and follow signed detours“Travelers who need to cross the freeway will follow a signed detour. Flaggers will direct travelers to a signed detour using northbound I-5 to Exit 71 for SR 508, then southbound back to US 12. Slow down, stay focused and expect delays.”
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  The US 12 bridge closure requires using a detour via northbound I-5 to Exit 71 for SR 508“Flaggers will direct travelers to a signed detour using northbound I-5 to Exit 71 for SR 508, then southbound back to US 12.”
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  The US 12 bridge closure requires using a detour via southbound back to US 12“Flaggers will direct travelers to a signed detour using northbound I-5 to Exit 71 for SR 508, then southbound back to US 12.”
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  The SR 99 bridge closure will close the northbound on-ramp to SR 509“099: From 5 a.m. Saturday, Aug. 22 to 11:59 p.m. Sunday, Aug. 23, the northbound State Route 99 First Avenue South Bridge will close from State Route 509 to East Marginal Way South (milepost 27). The northbound SR 99/Holden Street on-ramp to State Route 509 and the northbound SR 99 off-ramp to South Michigan Street will also close.”
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  The SR 99 bridge closure will close the off-ramp to South Michigan StreetNo usable supporting receipt — unverified.
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  The longest ongoing closure is on SR 730 between US 12 and the Oregon State LineNo usable supporting receipt — unverified.
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  The longest ongoing closure is on SR 730 between US 12 and the Oregon State Line with alternating traffic controlled by flaggers until September 18“730: SR 730 between the Jct. of US 12 and the Oregon State Line milepost 0 to 6: Monday through Friday from 6 a.m. to 6 p.m. until further notice, there will be flagger and pilot vehicle controlled alternating traffic for roadwork. Effective: Jun 7, 2026, 9:48 PM Expected end: Sep 18, 2026, 6:00 PM”
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  WSDOT will provide updates on their website for real-time changesNo usable supporting receipt — unverified.