Capital Transit Co.

Calvert Street Bridge (Washington, District of Columbia)
Built 1891; Replaced 1935
Lost Deck truss bridge over Rock Creek on Calvert Street
Replaced by a new bridge

W&GF - Foundry Branch Bridge (Washington, District of Columbia)
Built 1895 for the The Washington and Great Falls Electric Railway, taken over by successor companies and Capitol Transit, which merged with WMATA; abandoned 1962 or before
Pratt deck truss bridge over Foundry Branch on The Washington and Great Falls Electric Railway
Derelict/abandoned; owned by Washington Metropolitan Area Transit Authority