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.
Cleveland Short Line Railway more than half used only that portion of the line west of the former Pennsylvania Railroad's Cleveland and Pittsburgh Railroad (then Conrail's Cleveland Line). In 1997, Conrail was jointly purchased by CSX and the Norfolk Southern Railway. CSX obtained the Cleveland Short Line. , CSX maintained of double track, and of single track. The Cleveland Short Line east of Short Line Junction is now CSX's Short Line Subdivision. As originally constructed, the Cleveland Short Line had of track and of sidings. The track grade was an extremely light 0.3 percent. The Cleveland Short Line connected with the Lake Shore &