[North tunnel shield.]
Southbound express tunnel.
[Constructing the McAdoo Tunnel.]
[Lincoln Tunnel Third Tube.]
Shaft No. 4, Steinway Tunnel.
[Construction of the Pennsylvania Railroad tunnels under the Hudson.]
Water color of Rendering by J.A. Gurd of tunnel.
Midtown Tunnel under Hudson River, April 24, 1935
[Battery Place demolition for Battery-Brooklyn Tunnel approach.]