a tri-state road and bridge program to replace the destroyed bridge. Plans for bridges across the Potomac and Shenandoah rivers and connecting highways were completed in August 1940. The new bridge across the Potomac river was to be placed at Sandy Hook to exploit the scenic views of the Potomac Water Gap. However, in December 1940, construction was delayed and plans needed to be modified to eliminate a sharp turn at the Virginia landing of the bridge. Despite a late request from the Virginia State Highway Department to move the Potomac River crossing upstream in June 1941, the concrete substructure of the Sandy Hook bridge was started in autumn 1941. The substructure was completed in March 1943. A request for bids for the Sandy Hook bridge's steel superstructure was advertised in November 1941. However, with the U.S. entering into World War II the following month, the construction of the superstructure of the bridge would be delayed until after the war due to the unavailability of steel. The Maryland State Roads Commission advertised for bids for the Sandy Hook bridge's superstructure in December 1945. Construction started shortly thereafter and the superstructure was completed in January 1947. The Maryland and Virginia approach roads were completed later in 1947 and the bridge officially opened October 19, 1947. Although the residents of Harpers Ferry lobbied for an on-site replacement of the bridge over the Shenandoah River at Harpers Ferry so US 340 would continue to pass directly through the historic town, the West Virginia State Road Commission completed a new roadway and a new Shenandoah River crossing along US 340's present alignment in 1949. US 340 was rerouted onto its present course over the two new bridges by 1950. Future A plan is currently being devised to expand the West Virginia portion of the road between the Virginia state line and Wheatland to a four-lane highway. The two-lane portion of the highway between Harpers Ferry, West Virginia, and the Virginia state line is often burdened by heavy traffic, and the West Virginia Department of Transportation is examining ways to mitigate backups. An interchange has been planned for the future section of Monocacy Boulevard within the planned Jefferson Tech Park in Frederick, Maryland. Major intersections Special routes Virginia truck route U.S. Route 340 Truck (US 340 Truck) is a truck route of US 340 in the city of Waynesboro, Virginia. The route follows US 250/Broad