Bridges at Lorton Road, Beach Mill Road, and Towlston Road in Northern Virginia were destroyed by high water.
Crews for Virginia's Department of Transportation are assessing and repairing damage to area bridges and roads left by the recent heavy rains.
Initial assessments suggest up to $10 million in damages to bridges and roads in Fairfax County alone.
Bridges at Lorton Road, Beach Mill Road, and Towlston Road were destroyed by high water, and are being replaced with temporary structures.
The Lorton Road bridge over Giles Run is the busiest, carrying approximately 6,000 vehicles a day. The posted detour is several miles long.
Damage from the flooding has also forced six road closures in Fairfax County.
A V-DOT spokesperson warns more pavement, slope failures and potholes could appear in the coming days.