[McAdoo Tunnel.]
[Constructing the McAdoo Tunnel.]
McAdoo Tunnel under North River, New York
Building the McAdoo Tunnel, Under the Hudson River, New York.
[William McAdoo.]
[Cheering parade of delegates after nominating McAdoo for president.]
[Tunnel construction.]
Shaft No. 4, Steinway Tunnel.
Southbound express tunnel.
Queensboro Tunnel.
East River Tunnel, New York
The Holland Tunnel
[Holland Tunnel.]
Hudson River Tunnel Curve, New York