[The working chamber of the New York River Shaft Caisson.]
[Shaft of Ashokan Water Tunnel.]
Shaft No. 4, Steinway Tunnel.
Typical Pressure Tunnel Construction Shaft [Catskill System.]
[Towing New York River Shaft Ciasson from Staten Island Shipbuilding Company's yard.]
Subways, Fourteenth Street Cut for Subway, Rock Cut Looking West, Shaft 1.
[City Tunnel No. 2.]
Midtown Tunnel under Hudson River, April 24, 1935
Untitled [Tenement shaft.]
[Launching New York River Shaft Caisson.]
Gun Hill Road. Base Hospital #1. Interior of ward showing construction, view #9A. Taken for Captain Noble.
[Queens Midtown Tunnel.]
[Digging Shaft, Summit, Pa.]
[Digging subway tube under East River for Queensboro Subway.]
Construction Plant for City Tunnel at Shaft 9, 150th Street and St. Nicholas Avenue [Catskill System.]
The Queens Midtown Tunnel Opening Ceremonies
For a Further Unification of the People
Man inside the southern end of a river tunnel.
Triborough Bridge and Tunnel Authority