Infrastructure

US 12 Bridge Repairs, I-5 Paving, SR 9 Closure

Monday, August 17, 2026

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US 12 over I-5 will close nightly from Aug. 10 to Aug. 20 for bridge repairs, with a signed detour using I-5 Exit 71 and SR 508. WSDOT warns of delays and urges travelers to slow down.

I-5 will close up to two lanes southbound nightly from Aug. 16 to Aug. 18 between Barnes Drive and Exit 49. SR 9 closes until 6 a.m. Aug. 19 south of Mount Vernon Big Lake Road for a fish passage project, with detours via SR 534, I-5, and SR 538/College Way.

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

Source receipts8 of 9 claims supported · 89%

Legacy automated check: the original source text was not preserved. These earlier verdicts have not passed the current publication checks and may contain errors. Source: original document ↗

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US 12 over I-5 will close nightly from Aug. 10 to Aug. 20 for bridge repairs“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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A signed detour using I-5 Exit 71 and SR 508 will be in place“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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WSDOT warns of delays“Travelers should slow down, move over and expect delays through the work zone.”
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WSDOT urges travelers to slow downNo usable supporting receipt — unverified.
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I-5 will close up to two lanes southbound nightly from Aug. 16 to Aug. 18“005: From 7 p.m., Sunday, Aug. 16 to 5 a.m., Tuesday, Aug. 18: Up to two lanes of southbound I-5 will close nightly between Barnes Drive (milepost 52.6) and Exit 49/SR 504 (milepost 50) for paving work.”
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The closure of I-5 is between Barnes Drive and Exit 49“005: From 7 p.m., Sunday, Aug. 16 to 5 a.m., Tuesday, Aug. 18: Up to two lanes of southbound I-5 will close nightly between Barnes Drive (milepost 52.6) and Exit 49/SR 504 (milepost 50) for paving work.”
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SR 9 closes until 6 a.m. Aug. 19 south of Mount Vernon Big Lake Road“Both directions of SR 9 are closed until 6 a.m. Wednesday, Aug. 19, south of Mount Vernon Big Lake Road (milepost 49) to install a fish passage. Signed detours use SR 534, I-5 and SR 538/College Way around the closure. Please add time to your travel plans.”
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The closure of SR 9 is for a fish passage project“009: Both directions of SR 9 are closed until 6 a.m. Wednesday, Aug. 19, south of Mount Vernon Big Lake Road (milepost 49) to install a fish passage. Signed detours use SR 534, I-5 and SR 538/College Way around the closure. Please add time to your travel plans.”
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Detours via SR 534, I-5, and SR 538/College Way will be in place“Both directions of SR 9 are closed until 6 a.m. Wednesday, Aug. 19, south of Mount Vernon Big Lake Road (milepost 49) to install a fish passage. Signed detours use SR 534, I-5 and SR 538/College Way around the closure. Please add time to your travel plans.”