The Washington State Department of Transportation expects 8,000 bicyclists to pass through Cowlitz and Columbia counties this weekend during the annual Seattle-to-Portland bike ride, bringing with them intermittent closures of the southbound lanes of the Lewis and Clark bridge on Sunday.
The 206-mile route takes riders on side-roads hugging Interstate 5. They will pass through Castle Rock, Lexington, West Kelso and Longview via Westside Highway, turn onto Industrial Way and cross the Lewis and Clark Bridge to finish the last stretch of the ride in Oregon via Highway 30.
According to WSDOT, drivers should prepare for the following periods of congestion:
- Early Sunday on Westside Highway/SR 411 from Castle Rock to Kelso.
- All day Sunday on SR 432 and SR 433 (Industrial Way and Oregon Way) across the Lewis and Clark Bridge.
Drivers on SR 432/SR433 can expect delays of up to 20 minutes from 8:30 a.m. to 2:30 p.m. Sunday, according to WSDOT. Washington State Patrol and flaggers will periodically stop southbound (Oregon-bound) traffic on the bridge to allow riders to cross.
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Bicyclists still have a few days to sign up for the 40th annual Seattle to Portland bike ride.
Online registration has closed, but latecomers can still register at packet pick-up events from 10 a.m. to 8 p.m. on Thursday and Friday at the Cascade Bicycle Club near Seattle’s Magnuson Park or on the day of the ride at the start line at the University of Washington E-1 parking lot.
Riders attempting the trek in one day will start from 4:45 to 5:15 a.m. The majority of riders will spend two days making the journey; the starting line will be open from 5:15 to 7:30 a.m. for them.
Centralia College is the midpoint of the race, where riders can either spend the night or refresh before continuing the ride. The race ends at Holladay Park in Portland.