Hoover Dam Detail of Work Area, Nevada Side Looking Southwest Editorial Image - Image of landmark, mountain: 137197110
Photos: Construction of Hoover Dam on the Colorado River in the 1930s
The massive spillway tunnels that reroute high water at the Hoover Dam (50 feet in diameter, 600 feet long) : r/interestingasfuck
Hoover Dam - Wikipedia
In 1983, plywood was all that kept Glen Canyon Dam from overflowing
Hoover Dam opens spillways in July 1983 — PHOTOS | Las Vegas Review-Journal
Hoover Dam Railroad Tunnel Trail | BackRoadsWest Trips Blog
Diversion and spillway tunnels at Hoover Dam — Calisphere
The Hoover Dam | The Herbert Hoover Presidential Library and Museum
File:Inside one of Hoover Dam's bypass tunnels.jpg - Wikimedia Commons
The Men Who Built the Dam | American Experience | Official Site | PBS
Hoover Dam Construction Process | Design Facts and Technical Details
The Greatest Dam in the World": Building Hoover Dam (Teaching with Historic Places) (U.S. National Park Service)
One of two spillway tunnels at Hoover Dam on the Arizona/Nevada border. 50 feet wide and 600 feet deep, you can hear rushing water down in the darkness. The walkway above gives
Hoover Dam | Bureau of Reclamation
Inlet portal, Diversion Tunnel No. 4, showing bulkhead gate steel erected in structure.; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam,
bioreconstruct on Twitter: "Diversion tunnel on Nevada side of Hoover Dam. Note gate. https://t.co/jvWjGwFjZ4" / Twitter
Inside the outer diversion tunnel of Hoover Dam, on the Arizona side, is the tunnel now empty between the iron slab in the entry gate and the concrete spillway plug? - Quora
Hoover Dam | Bureau of Reclamation
File:Looking upstream into Black Canyon toward Hoover Dam site showing outlet portals of four diversion tunnels and... - NARA - 293789.jpg - Wikimedia Commons
Powerplant tour, Hoover Dam | Inside the spillway tunnel, on… | Flickr
Hoover Dam spillway. This tunnel is fifty feet wide. | Flickr
