![Penstocks, or water intake towers, in Lake Mead at Hoover Dam on the Colorado River near, Nevada. Arizona United States Stock Photo - Alamy Penstocks, or water intake towers, in Lake Mead at Hoover Dam on the Colorado River near, Nevada. Arizona United States Stock Photo - Alamy](https://c8.alamy.com/comp/2J6E4K2/penstocks-or-water-intake-towers-in-lake-mead-at-hoover-dam-on-the-colorado-river-near-nevada-arizona-united-states-2J6E4K2.jpg)
Penstocks, or water intake towers, in Lake Mead at Hoover Dam on the Colorado River near, Nevada. Arizona United States Stock Photo - Alamy
![Photograph of penstock pipe at Hoover Dam, circa 1935-1940 - Photograph Collections (1 of 2) - Welcome to UNLV's Digital Collections Photograph of penstock pipe at Hoover Dam, circa 1935-1940 - Photograph Collections (1 of 2) - Welcome to UNLV's Digital Collections](https://d.library.unlv.edu/digital/api/singleitem/image/pho/1201/default.jpg)
Photograph of penstock pipe at Hoover Dam, circa 1935-1940 - Photograph Collections (1 of 2) - Welcome to UNLV's Digital Collections
![The Godbey family poses in a penstock pipe section that is slatted for the Hoover Dam construction project, on Christmas Day, December 25, 1934, in this family snapshot. Family members, from left, … The Godbey family poses in a penstock pipe section that is slatted for the Hoover Dam construction project, on Christmas Day, December 25, 1934, in this family snapshot. Family members, from left, …](https://www.reviewjournal.com/wp-content/uploads/2014/10/web1_46_patty_penstock_6.jpg)
The Godbey family poses in a penstock pipe section that is slatted for the Hoover Dam construction project, on Christmas Day, December 25, 1934, in this family snapshot. Family members, from left, …
![Penstock Towers At Hoover Dam On The Colorado River, The USA Stock Photo, Picture And Royalty Free Image. Image 134365059. Penstock Towers At Hoover Dam On The Colorado River, The USA Stock Photo, Picture And Royalty Free Image. Image 134365059.](https://previews.123rf.com/images/elec/elec1911/elec191100093/134365059-penstock-towers-at-hoover-dam-on-the-colorado-river-the-usa.jpg)