Construction on Hunter Mill Bridge over Colvin Run to wrap up in fall 2022

Construction on a $5.2 million bridge over Colvin Run is set to wrap up by the fall of next year.

The two-lane bridge on Hunter Mill Road over Colvin Run will replace a one-lane bridge that has been deemed structurally deficient by state and national standards.

The Virginia Department of Transportation began building in the bridge in August after launching a public engagement process in April 2018.

While VDOT is expected to fund most of the bridge through federal and state dollars, the department is asking the county to pitch in $408,000 to help construct a splitter island, median refuge, and rapid flashing beacons on bridge.

The median refuge and RRFB will improve safety and accessibility of drivers, bicyclists, and pedestrians where Hunter Mill Road and the Colvin Run Stream Valley Trail intersect just south of the bridge. The bridge is also being designed to allow a future trail crossing of Colvin Run,” according to a memo prepared by county staff.

The Fairfax County Board of Supervisors will vote on an agreement to firm up the county’s contribution at a board meeting tomorrow.

The one-lane bridge had to be reinforced in an emergency move in February last year. The maximum load of the bridge was reduced to 10 tons and the lane width was reduced to 10 feet.

Construction was first expected to begin earlier this year but was later pushed to the summer.

The bridge was built in 1974 and averages roughly 8,500 vehicles per day, according to VDOT.

A construction contract was awarded to Clearwater Construction, Inc. in April.

The county board is expected to vote on a formal project administration agreement with VDOT so that the state can continue project work.

Photo via handout/VDOT

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