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Construction Updates for Whatcom, Skagit and Island Counties

Last update:  2:00 p.m. Friday, April 28

This information changes frequently. Please check back often. Travelers can also call 5-1-1 or follow @WSDOT_North on Twitter for real-time traffic and weather updates.

If a highway is not listed below, there are no scheduled lane closures at this time, although emergency lane closures may still occur.

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Click here for construction and maintenance closures on I-5 from Blaine to Federal Way.

WSDOT Bridge Inspection

Highway: SR 539 Region: Northwest County: Whatcom Location: Milepost(s) 9.4
Contact: Andrea Petrich, Communications, 360-757-5963
Description: WSDOT crews will be doing a bridge inspection.
Work Schedule:

  • Tuesday, May 16 - WSDOT bridge crews will close the right lane of northbound SR 539/The Guide Meridian over the Nooksack River Bridge from 8 a.m. until 12 p.m. for bridge inspection.
  • Wednesday, May 17 - WSDOT bridge crews will close the left lane of northbound SR 539/The Guide Meridian over the Nooksack River Bridge from 8 a.m. until 12 p.m. for bridge inspection.

Mount Baker Highway guardrail installation - 8981

Highway: SR 20 Region: Northwest County: Whatcom Location: Milepost(s) 16 and 41to 47
Contact: Gabe Ng, Project Engineer, 360-788-7403
Description: Contractor crews from Peterson Bros. Inc. will be installing new guardrail along SR 542.
Work Schedule:

  • Monday, May 1 through Friday, May 19 - Crews will close the eastbound lane of SR 542/Mount Baker Highway from 7:45 a.m. until 6:00 p.m. to install new guardrail at milepost 16 near Deming and between mileposts 41 and 47 east of Glacier. Flaggers will alternate traffic through the open lane.


Slater Road County Fish Passage

Highway: SR 548  Region: Northwest County: Whatcom Location: Milepost(s) 4.93
Contact: Andrea Petrich, Communications, 360-757-5963
Description: Whatcom County crews are replacing a fish passage on county roads. The detour route includes SR 548. Stop signs have been added to SR 548/Grandview Road at Kickerville Road during this construction. These signs are temporary and this intersection will go back to a two way stop when construction is complete.
Project webpage

WSDOT Bridge Inspection

Highway: SR 9 Region: Northwest County: Snohomish/Skagit Location: Milepost(s) 29.7
Contact: Andrea Petrich, Communications, 360-757-5963
Description: WSDOT crews will be doing a bridge inspection.
Work Schedule:

  • Wednesday, May 17 - WSDOT bridge crews will close one lane of SR 9 over the Stillaguamish River Bridge from 11 a.m. until 1 p.m. for bridge inspection.

Sedro-Woolley to Concrete Vicinity - #8989

Highway: SR 20 Region: Northwest County: Skagit Location: Milepost(s) 67.10 - 90.52
Contact: Dave Crisman, Project Engineer, 360-848-7100
Description: This resurfacing project will rehabilitate the existing pavement and preserve SR 20 from near Fruitdale Road in Sedro-Woolley to the eastern Concrete city limits.
Project webpage
Work schedule:

  • Monday, May 1 through Friday, May 5 - Contractor crews from Granite Construction will be working from 8 a.m. until 6:30 p.m. to repair some areas of the roadbed and bridge decks. Flaggers will alternate traffic through the work zone. This is work is weather dependent.

SR 525 and SR 20 Paving and Intersection Improvements - #9050

Highway: SR 525 & SR 20 Region: Northwest County: Island Location: Milepost(s)SR 525 9.06 to 30.52 and SR 20 20.53 to 26.49
Contact: Dave Crisman, Project Engineer, 360-848-7100
Description: WSDOT contractor crews are working on upgrading intersections, sidewalks and repaving more than 30 miles of  highway from Clinton to Coupeville.
Project webpage
Work schedule:

  • Friday, April 28 through Friday, May 5 - Crews will be working overnight from 7 p.m. until 5 a.m. to upgrade intersection ramps and sidewalks on SR 525 at the Fish Street/East Main Street and Bayview Road intersections/mileposts. Improvements are being made to meet Americans with Disabilities Act (ADA) standards. Working through the weekends is allowing crews to finish intersection work in a quarter of the time. Flaggers will be on scene to help pedestrians through the intersection. Occasional lane closures could happen when concrete trucks need access to pour.

City of Oak Harbor Maintenance Work

Highway: SR 20    Region: Northwest    County: Island/Skagit    Location: Milepost(s) 41.80-42.00
Contact: Arnie Peterschmidt, Oak Harbor Public Works Project Engineer, 360-279-4525
Description: City of Oak Harbor maintenance crews are replacing a waterline hanger on SR 20.

  • Until Friday, May 26 - A single lane in either direction of SR 20 on the Deception and Canoe Pass bridges will be closed from 8 p.m. to 6 a.m. nightly, Monday through Thursday. Flaggers will alternate traffic through the open lane.

Skagit Valley Tulip Festival

  • Saturday, April 1, through Sunday, April 30 - Plan ahead for extra congestion on I-5 and other state, county and city streets in Skagit County during the Skagit Valley Tulip Festival.

McClinchy Mile Bicycle Ride

  • Sunday, April 30 - Drivers and cyclists should expect extra cyclists on the road on multiple state routes in Skagit and Snohomish counties during this 7:30 a.m. to 4:30 p.m. event. All routes leave from Haller Park in Arlington and head toward Granite Falls, Standwood and Lake Mc. Murray.

Skagit Spring Classic Bicycle Ride

  • Saturday, May 13 - Starting at 7 a.m. cyclists will be using areas along SR 9, SR 11 and I-5 in the Bow Hill and Alger areas for this event.