Infrastructure

I-5 Fish Passage Construction Delays Continue

Saturday, September 5, 2026

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WSDOT announced several lane closures on I-5 near Bellingham for fish passage construction through September and October.

Northbound I-5 will close one lane nightly from Sept. 8-10 near Lake Samish, and a single lane will be used on I-5 from Sept. 9-10 near Alger/Lake Samish Road. A bypass road will be used around Chuckanut Creek through October for fish passage work. Detours are in place for off-ramps closing during overnight work.

WSDOT says the work is part of a project to install new fish passable structures under I-5. The project webpage provides more details.

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

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WSDOT announced several lane closures on I-5 near Bellingham for fish passage construction through September and October“Northbound and southbound I-5 will use temporary, two-lane bypass roads near Chuckanut Creek (milepost 247) south of Bellingham around the clock through October. With traffic off I-5, crews will install new fish passable structures.”
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Northbound I-5 will close one lane nightly from Sept. 8-10 near Lake Samish“Northbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Tuesday, Sept. 8, through Thursday morning, Sept. 10, north of North Lake Samish (exit 246) for fish passage construction.”
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A single lane will be used on I-5 from Sept. 9-10 near Alger/Lake Samish Road“Northbound and southbound I-5 will be reduced to a single lane from 8 p.m. Wednesday, Sept. 9, to 5 a.m Thursday, Sept. 10, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
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A bypass road will be used around Chuckanut Creek through October for fish passage work“Northbound and southbound I-5 will use temporary, two-lane bypass roads near Chuckanut Creek (milepost 247) south of Bellingham around the clock through October. With traffic off I-5, crews will install new fish passable structures.”
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Detours are in place for off-ramps closing during overnight workNo usable supporting receipt — unverified.
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WSDOT says the work is part of a project to install new fish passable structures under I-5“Northbound and southbound I-5 will use temporary, two-lane bypass roads near Chuckanut Creek (milepost 247) south of Bellingham around the clock through October. With traffic off I-5, crews will install new fish passable structures. An advisory speed limit of 50 mph is set through the work zones.”
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The project webpage provides more details“More information on the <a href="https://wsdot.wa.gov/construction-planning/search-projects/i-5-tributaries-friday-lake-chuckanut-creeks-fish-passage">project webpage</a>.”