1922 and 2012 topo maps
Just east of 21st Bridge on the WM there is now a connection with the B&O. Today this is as far east that the original WM mainline extends. However this connection is no longer used. A connection a few miles west at West Virginia Central Junction is how CSX accesses the WM in 2012 and has for several years now. 21st bridge got its name from the B&O's crossing of the Potomac River 21 miles west of Cumberland, Md.
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