Wallkill South cut-and-cover. Inside steel forms in place with outside forms not set. Contract 15. May 23, 1910.

Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description

water supply new york state new york science industry and business library general collection photographs of the catskill water supply system in process of construction wallkill south cut and cover steel forms forms high resolution new york n y board of water supply compiler wallkill steel place contract catskill construction new york public library

1918

New York Public Library

http://digitalcollections.nypl.org/

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