- The Library Shop
- Privacy Policy
- Rules and Regulations
- Using the Internet
- Website Terms and Conditions
- Gifts of Materials to NYPL
-
© The New York Public Library, 2025
The New York Public Library is a 501(c)(3) | EIN 13-1887440
Photographs of the Catskill water supply system in process of construction
General Research Division, The New York Public Library. "Hudson pressure tunnel. Fourteen-foot cast-steel dome for Drainage shaft showing method of stressing anchor-bolts. Contract 90. February 19, 1914." The New York Public Library Digital Collections. 1918. https://digitalcollections.nypl.org/items/510d47da-ddda-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. "Hudson pressure tunnel. Fourteen-foot cast-steel dome for Drainage shaft showing method of stressing anchor-bolts. Contract 90. February 19, 1914." New York Public Library Digital Collections. Accessed June 20, 2025. https://digitalcollections.nypl.org/items/510d47da-ddda-a3d9-e040-e00a18064a99
General Research Division, The New York Public Library. (1918). Hudson pressure tunnel. Fourteen-foot cast-steel dome for Drainage shaft showing method of stressing anchor-bolts. Contract 90. February 19, 1914. Retrieved from https://digitalcollections.nypl.org/items/510d47da-ddda-a3d9-e040-e00a18064a99
<ref name=NYPL>{{cite web | url=https://digitalcollections.nypl.org/items/510d47da-ddda-a3d9-e040-e00a18064a99 | title=
(still image)
Hudson pressure tunnel. Fourteen-foot cast-steel dome for Drainage shaft showing method of stressing anchor-bolts. Contract 90. February 19, 1914., (1918)|author=Digital Collections, The New York Public Library |accessdate=June 20, 2025 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>