NYPL's Public Domain Archive. Not developed or endorsed by NYPL. Part of the World's largest public domain source PICRYL.com.

manhole

public
3 media by topicpage 1 of 1
Culverts. Elmsford cut-and-cover. View showing drop inlet manhole with protective railing. Contract 52. November 27, 1913.

Culverts. Elmsford cut-and-cover. View showing drop inlet manhole with...

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description

Contact rail bands; direct current feeders from manhole to contact rail.
Sewer siphon at 149th Street and Railroad Avenue; Concrete sewer back of electric duct manhole - Broadway and 58th Street.

Sewer siphon at 149th Street and Railroad Avenue; Concrete sewer back ...

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description