Baltimore & Ohio Railroad, Martinsburg West Roundhouse, East End of Race & Martin Streets, Martinsburg, Berkeley County, WV
Significance: West Roundhouse is a building in the former engine and machine shops complex erected by the B&O in Martinsburg beginning in 1849. Destroyed by Confederate troops in 1861, the existing shops date from 1866 and later. West Roundhouse was one of two identical buildings used for running repairs to locomotives. It is a sixteen-sided, brick-walled polygon covered by a bell-shaped roof over the locomotive turntable, with sixteen wedge-shaped work bays radiating from the turntable. What makes the building unique and architecturally distinctive is its total cast-iron frame of octagonal columns, struts and beams. It is one of the most significant cast-iron framed buildings in the United States.
Unprocessed Field note material exists for this structure: FN-4
Survey number: HAER WV-1-A
Building/structure dates: 1866 Initial Construction