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New bridge over Pilchuck Creek complete
ARLINGTON — One of the last single-lane bridges on a Washington state highway became history on Tuesday, May 6. That's when a new two-lane, 36-foot-wide bridge across Pilchuck Creek on State Route 9 opened north of Arlington. The new bridge, on a new alignment, reduces sharp curves at both ends.
Opening the new bridge required Washington State Department of Transportation contractor crews to link the existing highway to the new roadway.
The new bridge replaces the original 17-foot-wide, 120-foot-long bridge built in 1916. With just one lane, the aging bridge was too narrow for modern traffic safety standards. Additionally, drivers needed to yield to oncoming traffic before crossing.
"Drivers won't have to wait for traffic on the bridge anymore, and we've taken out some sharp curves," WSDOT Project Engineer Dave Crisman said. "This makes the highway a more enticing option for people traveling between Arlington and north Snohomish County, or Mount Vernon."
The new span is about 800 feet southwest of the old one-lane structure. In addition to a 12-foot-wide lane in each direction, the new bridge features four- to six-foot-wide shoulders. The entire new section of roadway is a little more than half a mile long.
The project finished a few weeks ahead of schedule, and under its $10 million budget.
WSDOT plans to turn over the old section of highway right-of-way to Snohomish County.