WSDOT Travel Advisory: Southbound I-5 off-ramp at Alger to close Sunday night, Oct. 11, to install pavement markings

Washington State Department of Transportation sent this bulletin at 10/09/2026 09:30 AM PDT

Washington State Department of Transportation

Northwest Region – 15700 Dayton Ave. N. – Shoreline, WA 98133 – 206-440-4000

TRAVEL ADVISORY
Oct. 9, 2026

Contact: David Rasbach, communications, 206-719-0603 (mobile)

Southbound I-5 off-ramp at Alger to close Sunday night, Oct. 11, to install pavement markings

ALGER – The southbound Interstate 5 off-ramp to Alger/Lake Samish Road will close Sunday night, Oct. 11, to install permanent pavement markings. Southbound I-5 also will be reduced to one lane near exit 240, as work continues on a project correcting 17 barriers to fish migration near Lake Samish.

What to expect
People traveling through the area should expect:

  • The southbound I-5 off-ramp to Alger to close from 8 to 11:59 p.m. Sunday, Oct. 11. A signed detour will use the southbound I-5 off-ramp to Nulle Road (exit 242).
  • The right lane of southbound I-5 to close from 8 to 11:59 p.m. Sunday, Oct. 11.
  • The left lane of southbound I-5 to close from 11:59 p.m. Sunday, Oct. 11, to 5 a.m. Monday, Oct. 12.

Contractor crews working for the Washington State Department of Transportation will add permanent lane markings where a new fish-passable box culvert was installed beneath I-5 last summer. The work needs dry weather and may be rescheduled if rain is forecast.

People also should expect overnight lane reductions along northbound I-5 (mileposts 240 to 242) from 8 p.m. to 5 a.m. nightly Monday, Oct. 12, through Friday morning, Oct. 16, and at the same times Sunday, Oct. 18, through Friday morning, Oct. 23, as crews continue restoring natural habitat along a tributary to Friday Creek.

Real-time travel information is available via the WSDOT mobile app, the WSDOT travel map or by signing up for WSDOT's email updates.

 

Hyperlinks within the release:

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