Work, traffic impacts on I-5 south of Bellingham expected for months next year

WHATCOM COUNTY, Wash. — Officials with the Washington State Department of Transportation are reporting a project expected to impact motorists at multiple points on I-5 south of Bellingham will begin the spring of 2025.

This project will replace existing fish barrier culvert crossings on I-5 at South Unnamed Tributary to Friday Creek (milepost 240.92 and 240.95), Middle and North Unnamed Tributaries to Friday Creek (mileposts 240.99 to 241.10), Lake Creek draining to Lake Samish (milepost 245.76), Unnamed Tributary to Lake Creek (mileposts 246.12 and 246.22), and Chuckanut Creek (milepost 246.75) with fish passable structures.
– Washington State Department of Transportation (December 13, 2024)

Initial construction activities are planned to begin on I-5 near Lake Samish.

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Motorists are warned to expect single lane nighttime closures, slowdowns and temporary bypass lanes around work zones during the duration of the project. Work is anticipated to occur between April and October 2025.

Work is anticipated to occur between April and October of 2025.

During Friday Creek construction, southbound I-5 will close for 15 days. During this time both directions of traffic will use northbound I-5 (one lane each direction). Shortly following that closure, northbound I-5 will close for 12 days during this time both directions of traffic will travel on southbound I-5 (one lane each direction). Travelers should expect extended back-ups during this time.
– Washington State Department of Transportation (December 13, 2024)