1873-1923 Cave Station, Va., Bollman 1/98'7" Valley Railroad of Middle River deck 1/63'5" Virginia (B. & O.) Bridge truss no. 120. The main span was a Whipple deck truss. Replaced with plate girders. Designed by Bollman. 1873-1923 Mount Crawford, Bollman 2/98'6" Valley Railroad of Va., North River deck 1/148'9" Virginia (B. & O.) Bridge truss no. 117. Designed by Bollman. 1873-1923 Verona, Va., North Bollman 3/98'7" Valley Railroad of River deck Virginia (B. & O.) Bridge truss no. 129. The main span was a 147-ft. Whipple deck truss. Designed by Bollman. 1873-? Wadesville, Va., Bollman 1/147'8" Span length given is that Opequon Creek through of previous wood span truss that burned in 1862. B. & O. RR. c. 1873- Baltimore, Md. Iron roof ? First Presbyterian trusses Church. Built by Bollman; possibly designed by him. 1873- Baltimore, Md. Cast-iron City Hall. Cost, $12,840. stairs Designed by George A. Frederick, architect; built by Bollman. 1873- Baltimore, Md. Cast-iron Dome of the City Hall. framework Cost, $70,525. Designed by George A. Frederick; built by Bollman. 1875- Baltimore, Md., Iron truss 1/? Fayette Street Bridge. c.1913 Jones Falls Cost, $9,396. Built by Bollman. 1876- Baltimore, Md., "Single- 1/? Canton Avenue (now Fleet c.1913 Jones Falls beam iron Street) Bridge. Cost, bridge" $8,904. Built by Bollman. (truss?)