Pennsylvania Avenue Line (Washington, D.C.) to take up such portions of their tracks as may come in way of the improvement of the Capitol Grounds". This improvement gave the Capitol Grounds their present shape, bounded by First Street West and East and B Street North and South, and the Pennsylvania Avenue Line was moved to First Street West and B Street South. The B&O station branch was moved to First Avenue West and C Street North, ending at New Jersey Avenue; this had been the route of the B&O before its tracks (actually those of the Alexandria and Washington Railroad) were ripped up in 1872.
B&O Railroad Bridge the B&O replaced the original bridge with the current one. The three-span through truss bridge with a center swing span was built by the American Bridge Company. During construction, a tugboat grounded on the nearby riverbank and was freed by a B&O locomotive. The bridge was struck by the tugboat "Radnor", hauling a barge loaded with oleum, on March 12, 1924. The bridge was originally protected by a mechanical interlocking, which was revised in 1914. It was replaced in 1946 with an electrical interlocking, which also controlled the nearby junction with the Reading Company at Eastwick. In 1977, the Chessie