drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio railroad Bridge
drawbridges:
B&O Railroad Bridge
drawbridges:
B&O Railroad Strauss Railroad Bridge010
drawbridges:
B&O Strauss Railroad Bridge
drawbridges:
Baltimore & Ohio railroad Strauss bascule closed
drawbridges:
Baltimore & Ohio railroad bridge1
drawbridges:
Baltimore & Ohio Railroadbascule span
drawbridges:
Calumet River ( B&O railroad ) bridge
drawbridges:
Calumet River Strauss railroad bridge
drawbridges:
Baltimore & Ohio railroad bridge
drawbridges:
Baltimore & Ohio Railroad drawbridge
drawbridges:
Baltimore & Ohio Railroad drawbridge
drawbridges:
Baltimore & Ohio Railroad bascule liftspan
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad Bridge
drawbridges:
Baltimore & Ohio Railroad bridge
drawbridges:
B&O Strauss bascule bridge Framework and Counterweight
drawbridges:
B&O Calumet River Railroad Bridge