Infrastructure

I-5 Guardrail Work Closes Lane Sept. 21

Thursday, September 17, 2026

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Southbound I-5 will close the right lane near milepost 88 south of Grand Mound from 9 a.m. to 3 p.m. on Monday, Sept. 21, for guardrail repairs, according to WSDOT. The closure affects travelers between Centralia and Chehalis, requiring drivers to adjust routes during peak commute times. WSDOT advises planning ahead for delays and following flagger directions. Work is scheduled to end by 3 p.m. on Sept. 21, with no further details provided by WSDOT on the project timeline or contractor.

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

Source receipts5 of 10 claims supported · 50%

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Southbound I-5 will close the right lane near milepost 88 south of Grand Mound“From 9 a.m. to 3 p.m. Monday, Sept. 21, the right lane of southbound I-5 will close near milepost 88 south of Grand Mound for guardrail repairs.”
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The closure will occur from 9 a.m. to 3 p.m. on Monday“From 9 a.m. to 3 p.m. Monday, Sept. 21, the right lane of southbound I-5 will close near milepost 88 south of Grand Mound for guardrail repairs.”
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The closure is on Sept. 21No usable supporting receipt — unverified.
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The closure is for guardrail repairsNo usable supporting receipt — unverified.
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The closure affects travelers between Centralia and ChehalisNo usable supporting receipt — unverified.
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Drivers are required to adjust routes during peak commute timesNo usable supporting receipt — unverified.
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WSDOT advises planning ahead for delays“Plan ahead and expect delays.”
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WSDOT advises following flagger directions“Flaggers will direct travelers through the work zone.”
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Work is scheduled to end by 3 p.m. on Sept. 21“005 [6 mi from Centralia–Chehalis]: From 9 a.m. to 3 p.m. Monday, Sept. 21, the right lane of southbound I-5 will close near milepost 88 south of Grand Mound for guardrail repairs. <a href="https://content.govdelivery.com/accounts/WADOT/bulletins/42aaf9e">Read the travel advisory</a>. Effective: Sep 14, 2026, 4:55 PM Expected end: Sep 21, 2026, 9:00 AM 006 [9 mi from Centralia–Chehalis]: Monday, Sept. 14 through Monday, Oct. 12: Travelers in both directions of SR 6 will take turns moving through a single lane between Clinton Road (milepost 45.6) and Twin Oaks Road (milepost 46.5), weekdays from 7 a.m. to 3:30 p.m., for work to replace a buried water main line.”
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No further details are provided by WSDOT on the project timeline or contractorNo usable supporting receipt — unverified.