DOT revises weekend detour for Skagit bridge due to cycling event

Expect hundreds of cyclists on Whatcom County roads Saturday


Washington Department of Transportation officials said Friday, June 14 they are revising the southbound alternate route for Interstate 5 in Mount Vernon and Burlington this weekend due to several large community events. Drivers should expect extra delays.

The annual Ride to Conquer Cancer, a two-day charity ride from Surrey, B.C., to the Seattle area, will draw up to 3,000 cyclists through the area. And Burlington is hosting its 76th annual Berry Dairy Days on Saturday and Sunday.

Drivers taking exit 230 onto westbound Highway 20 in Burlington will see signs directing them to use Best Road to travel to southbound I-5 via Fir Island Road (SR 534). Extra law enforcement will be monitoring the area and DOT engineers will monitor several signals and manually adjust timing if necessary. "We hope people will come to participate and enjoy these events," said Jay Drye, WSDOT assistant regional administrator. "We're putting in the extra effort to keep traffic running smoothly and we're asking for everybody to pack their patience and drive safely to help us make that happen."

The bicycle event will wind its way through Whatcom County and into Skagit County Saturday taking two different routes. Most will travel close to the shore after crossing the border at Peace Arch State Park. Those seeking a more challenging route will head east after crossing the border and wind through Lynden and Nooksack before heading south.

Near Burlington, bicyclists will take Cook Road to Avon Allen Road, crossing Highway 20 and Memorial Highway, then turning west onto McLean Road into downtown Mount Vernon, where they will cross the Skagit River and ride to the Skagit County Fairgrounds.

Drivers can view detour maps and the bicycle event route, and monitor traffic conditions by checking this Mount Vernon camera page, or looking at the this DOT page on the Skagit River bridge project.

For more information on the bike ride, go to The "event schedule and information" link has Google maps of the exact expected routes.

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