- Charles C. Glover Memorial (Massachusetts Ave) Bridge - Washington DCThe Massachusetts Avenue bridge was built in 1940-1941 by the Army Corps of Engineers with federal funds provided by Congress to the District of Columbia Commissioners. It was a final step in the completion of the Rock Creek and Potomac Parkway in the New Deal era. The new bridge replace a low earth-fill causeway over the creek, built in 1901, and a tunnel under the causeway that impeded traffic on the new Rock Creek parkway. Congress appropriated $360,000 for the bridge under the District of Columbia act of 1939. Additional funding was added in 1941 to dynamite the old bridge and...