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Two head tri-color mast signal at 21st st. Interlocking
This is 21st Street interlocking, remotely controlled from B Tower, looking toward the west. The main tracks, connected here by universal crossovers and signalled in both directions, are on the right. The track at center comes from the eastbound…
Swing Bridge at New York, NY
Harlem River four track swing bridge.
Vertical Lift Bridge at New York, NY
Joining two sections of new Harlem River bridge.
Vertical Lift Bridge at New York, NY
Joining two sections of new Harlem River bridge.
Vertical Lift Bridge at New York, NY
Joining two sections of new Harlem River bridge.
Vertical Lift Bridge at New York, NY
Raising 30 ton sheaves for new Harlem River Bridge.
Vertical Lift Bridge at New York, NY
Raising 30 ton sheaves for new Harlem River Bridge.
Vertical Lift Bridge at New York, NY
Construction of new Harlem River Bridge.
Vertical Lift Bridge at New York, NY
Construction of new Harlem River Bridge.
Vertical Lift Bridge at New York, NY
Unloading girder sections for Harlem River Bridge. 76 ton piece in well car.
Vertical Lift Bridge at New York, NY
138th. St. bridge lift tower.
Vertical Lift Bridge at New York, NY
138th. St. bridge lift tower.
Tunnel at Oscawana, NY
Oscawana Tunnel.
Tunnel at Oscawana, NY
Oscawana Tunnel.
Vertical Lift Bridge at Cleveland, OH
Bridge 2.