Work on Marblemount bridge forces overnight closures

The Marblemount bridge on Cascade River Road will be closed to overnight traffic on weekdays beginning Monday.

According to a Skagit County news release, the closures will be in effect 8 p.m. to 4 a.m. from Monday evening through Friday morning through June 19.

The closures are needed as work is done to rehabilitate the aging bridge.

Work will be done during daytime hours as well, but the road will remain open.

Because of flood damage to Rockport Cascade Road over Jordan Creek, the closure of the Marblemount bridge means visitors and residents east of the bridge will not be able to access Highway 20.

First responders will still be able to access the area if an emergency occurs during the closures.

The Marblemount bridge is about 90 years old and has been under a weight restriction and limited to one lane of traffic.

It has corrosion to truss elements and gusset plates, rust in the steel floor system, missing fasteners, leaking joints, and bad patches on the bridge deck.

According to the release, the work being done will extend the life of the bridge, return it to two lanes of traffic and remove the weight restriction.

The $18.5 million project is fully funded through the 2022 Federal Highway Administration Local Bridge Program.

The project is set to be completed in the fall.

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This story was originally published May 28, 2026 at 7:03 AM.