Infrastructure

SR 9 lane closures for fish passage project

Monday, August 24, 2026

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State Route 9 near Kalloch Road (MP 59) will operate as a single lane with alternating traffic through a bypass road starting Aug. 23, 2026, for 42 days until Sept. 14, 2026, for fish passage construction.

Alternating traffic on SR 9 just south of Mount Vernon Big Lake Road (MP 49) will begin Sept. 3, 2026, from 10 a.m. to 4 p.m. daily through Thursday, ending Sept. 3, 2026, at 4 p.m., according to WSDOT.

The fish passage project aims to improve habitat for fish in Nookachamps and Hansen Creeks. WSDOT advises drivers to expect delays in the affected areas.

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

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State Route 9 near Kalloch Road (MP 59) will operate as a single lane with alternating traffic through a bypass road starting Aug. 23, 2026“009: SR 9 is reduced to a single lane near Kalloch Road (MP 59) with a signal alternating northbound and southbound traffic through a bypass road for 42 days, until Sept. 14 for fish passage construction. Expect delays in the area.”
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The single lane operation on State Route 9 near Kalloch Road (MP 59) will last for 42 days“009: SR 9 is reduced to a single lane near Kalloch Road (MP 59) with a signal alternating northbound and southbound traffic through a bypass road for 42 days, until Sept. 14 for fish passage construction.”
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The single lane operation on State Route 9 near Kalloch Road (MP 59) will end on Sept. 14, 2026“009: SR 9 is reduced to a single lane near Kalloch Road (MP 59) with a signal alternating northbound and southbound traffic through a bypass road for 42 days, until Sept. 14 for fish passage construction.”
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Alternating traffic on SR 9 will begin just south of Mount Vernon Big Lake Road (MP 49) on Sept. 3, 2026“009: Northbound and southbound traffic will alternate from 10 a.m. to 4 p.m. daily Mondays through Thursday through Thursday, Sept. 3, just south of Mount Vernon Big Lake Road (milepost 49) for fish passage construction.”
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Alternating traffic on SR 9 just south of Mount Vernon Big Lake Road (MP 49) will start at 10 a.m. daily“009: Northbound and southbound traffic will alternate from 10 a.m. to 4 p.m. daily Mondays through Thursday through Thursday, Sept. 3, just south of Mount Vernon Big Lake Road (milepost 49) for fish passage construction. Expect delays in the area.”
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Alternating traffic on SR 9 just south of Mount Vernon Big Lake Road (MP 49) will end at 4 p.m. dailyNo usable supporting receipt — unverified.
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The fish passage project on State Route 9 aims to improve habitat for fish in Nookachamps and Hansen CreeksNo usable supporting receipt — unverified.
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WSDOT advises drivers to expect delays in the affected areas“Expect delays in the area.”