Search for all of "equipment", all of "Hoover Dam ariz And Nev -- Design And Construction"

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	Title	Description
251	Upstream face of Hoover Dam, and the Arizona intake towers	Shows construction taking place on the Arizona intake towers and on the top of the dam. Catwalks, temporary buildings, the Colorado River, and construction equipment including derrick cranes are visible.
252	Upstream face of Hoover Dam, and the Nevada intake towers	Shows construction on the two Nevada intake towers. Also shows part of the upstream face of Hoover Dam with construction going on on the top of the dam. A cableway, construction equipment such as derrick cranes, and tunnel...
253	Hoover Dam construction site viewed from downstream	View of the Hoover Dam construction site in Black Canyon from downstream. Framework and concrete pouring forms are visible on the Nevada power house on the left, the Arizona power house on the right and the central portion of the...
254	Hoover Dam construction -- upstream face	Close-up view of the upstream face of Hoover Dam and part of the power houses. Hoisting machinery is visible.
255	Hoover Dam construction	Shows a box car being lowered by hoist at Hoover Dam during construction. The power houses and intake towers are visible as well as the upstream face of the dam. A cableway stretches across the canyon, supporting the...
256	High scaling operations	View of Black Canyon with construction equipment on the canyon floor and cables suspended over the canyon. High scalers can be seen on the rock face on the left side of the photo.
257	Blasting -- Hoover Dam site	View of blasting at Black Canyon during construction of Hoover Dam. Part of the Colorado River is visible as are construction buildings and equipment on the side of the canyon.
258	Hoover Dam construction	Close-up view of upstream face of Hoover Dam and the power houses during construction.
259	Hoover Dam construction	View of construction in Black Canyon at the Hoover Dam site. Construction workers are standing by the railroad tracks looking at a dynamite blast that is taking place in the distance. The Colorado River is visible as...
260	Blasting at Hoover Dam site	View of construction in Black Canyon at the Hoover Dam site. Construction workers are standing by the railroad tracks looking at a dynamite blast that is taking place in the distance. The Colorado River is visible as...
261	Hoover Dam construcion -- blasting	Shows the construction of Hoover Dam. One of the portals of the diversion tunnels is visible. Dynamite blasting is taking place in the canyon and trucks and various construction buildings are visible on the cofferdam. Also shows some...
262	Hoover Dam workers on canyon floor	Shows workers using drills on the floor of Black Canyon at the Hoover Dam construction site.
263	Hoover Dam site -- workers welding	Shows two workers welding at the Hoover Dam construction site.
264	Close-up of cement bucket used at Hoover Dam site	Close-up of 8 cubic yard capacity bucket used in placing concrete in dam forms. It is suspended by hoisting machinery. This photo is a postcard.
265	Pouring concrete -- Hoover Dam	Shows construction workers pouring concrete at Hoover Dam. The huge bucket for pouring concrete and concrete forms are visible. This photo is a postcard.
266	Cement work -- Hoover Dam	Shows a construction worker standing in concrete at the Hoover Dam construction site. Concrete forms can be seen as well as the huge bucket used to pour concrete into the forms. The bucket was lowered by hoisting machinery,...
267	Inside a diversion tunnel -- Hoover Dam construction	Shows a construction worker and power shovel inside a diversion tunnel at the Hoover Dam construction site.
268	Workers in diversion tunnels -- Hoover Dam site	Shows construction workers, truck, and power shovel inside a diversion tunnel at the Hoover Dam construction site. Electric lights illuminate the scene.
269	Construction in diversion tunnel -- Hoover Dam	View of the drilling jumbo working in one of the diversion tunnels during the construction of Hoover Dam.
270	Construction of diversion tunnel at Hoover Dam	Shows a drilling jumbo and other construction vehicles inside a diversion tunnel during the construction of Hoover Dam.
271	Construction -- Hoover Dam -- Diversion tunnel	Shows the construction of one of the diversion tunnels at Hoover Dam.
272	Construction workers inside Hoover Dam diversion tunnel	Shows a power shovel dumping concrete into a dump truck inside a diversion tunnel during the construction of Hoover Dam. Construction workers are visible at work.
273	Construction -- near Hoover Dam	Shows construction buildings, roads, and trucks in the mountains near the Hoover Dam site.
274	Colorado River -- Hoover Dam site	View looking down at the Colorado River in Black Canyon, the future site of Hoover Dam. Roads and buildings can be seen on the banks above the river and some construction equipment is visible.
275	Hoover Dam construction -- various phases	This postcard shows the construction of Hoover Dam in four different stages. All views were taken from the same point looking upstream. The first image shows Black Canyon and the Colorado River at the very beginning of construction...
276	Upper portals -- Hoover Dam site	Handwritten inscription on back of photo: "View at upper portals showing narrowed channel just prior to diversion". Construction roads, equipment, and workers are visible. Some buildings and trucks are also in the picture.
277	Work on cofferdam -- Hoover Dam	Shows men and trucks working on the cofferdam at the Hoover Dam site. Power shovels and other construction equipment are also visible.
278	Hoover Dam construction	View of the Hoover Dam construction site showing equipment being lowered by cable, buildings, and other construction equipment. The Colorado River is partially visible as is the cofferdam.
279	Hoover Dam construction	Shows construction equipment being lowered by cable at the site of Hoover Dam construction. Buildings, other construction equipment, and workers are visible.
280	Hoover Dam construction	Panoramic view of the Hoover Dam construction site. One of the lower portals to a division tunnel can be seen. Buildings, trucks, and the cofferdam are also visible. A portion of the Colorado River is...
281	Cement plant at Hoover Dam site	View of the cement plant at the Hoover Dam site. Cables, buildings, and other construction equipment are visible.
282	Construction of gravel plant near Hoover Dam site	Shows the construction of the gravel plant near the Hoover Dam site. A crane is lifing equipment. Construction workers, cars and trucks, and buildings can be seen.
283	View showing method of finishing slabs in invert lining.	Construction workers are operating machinery to finish slabs in the invert lining of a diversion tunnel at the Hoover Dam site.
284	Close-up of trimming jumbo	Shows construction workers on the trimming jumbo which was used to scale the walls of the diversion tunnels and remove projecting rock. The tunnel is at the Hoover Dam construction site.
285	Construction bridges across the Colorado River	This is a view of a truck loaded with equipment driving across a bridge spanning the Colorado River at Hoover Dam site. Construction workers and equipment are shown on the bank of the river. At the right is...
286	Concrete form construction work	View of construction workers buidling wooden forms for concrete pouring on Hoover Dam. The concrete dam wall is partially finished, and framework surrounds the beginning construction of the intake towers.
287	Spillway on Arizona side of Hoover Dam	View of the spillway on the Arizona side of Hoover Dam, showing steel gates in position. Towers to supply electric power higher up the hill.
288	Diversion tunnels during Hoover Dam construction	Photo shows the Arizona diversion tunnels during the construction of Hoover Dam. Two men, railroad trucks, a temporary bridge, some temporary structures and a cable over the canyon are also shown.
289	Hoover Dam cooling tower and refrigeration plant during construction	View of Hoover Dam during construction, looking downstream. The cooling tower and refrigeration plant are visible; also shows concrete forms, high scaling equipment, and various consruction materials and trucks. There is a man in the lower left-hand corner...
290	Hoover Dam during construction	Construction photo of Hoover Dam. Shows a train winding along the canyon, concrete forms, buildings and structures above the dam, construction roads, high scaling equipment and a cable suspended over the canyon. The Colorado River is visible above...
291	Construction of intake towers and spillway -- Hoover Dam site	Site where the intake towers and the spillway on the Arizona side of the dam are being built. Construction roads, high scaling equipment, and other construction equipment can be seen.
292	Construction of the power house foundation in Hoover Dam	View from downstream on the Colorado River of construction on Hoover Dam. The dam wall is covered with scaffolding, ladders, concrete pouring forms and other construction equipment. The base of the power house is seen in the foreground.
293	Construction on the Arizona power house	View of the Hoover Dam construction site, looking upstream on the Colorado River in Black Canyon. The partially finished dam face can be seen on the left, with concrete pouring forms and other construction equipment. Construction of the Arizona power...
294	Union Pacific "Train of Tomorrow" -- Hoover Dam site	Shows the "Train of Tomorrow" at the upstream face of Hoover Dam, where concrete is transferred from trains to the dam. Hoisting machinery, high scaling equipment, and train trestle can be seen. There is a group of people...
295	Bridge across Boulder Canyon at Hoover Dam site.	A bridge stretches from one side of Black (not Boulder) Canyon to the other side, with the Colorado River flowing beneath. The background shows scaffolding against the mountainside. A building sits against the mountain at the far end of the...
296	View of power houses being constructed at the Hoover Dam site	General view of the construction of Hoover Dam, looking upstream. The power houses are being built in this phase. A cableway spans the canyon carrying a tram across. There are several buildings, construction workers, and trucks visible....
297	Aerial view of the Hoover Dam construction site looking upstream on the Colorado River	Aerial view of the Hoover Dam construction site looking upstream on the Colorado River in Black Canyon. Construction on the power houses in the lower cofferdam is seen in the foreground. The roof of a temporary building is seen in...
298	Night photograph of power house construction.	Night view of the Hoover Dam construction site viewed from the lower cofferdam. Electric lights illuminate the dam face, the canyon walls and construction on the Nevada and Arizona power houses below. Temporary buildings are seen in the foreground on...
299	Upstream face of Hoover Dam, during construction	View of Hoover Dam construction from the Arizona side of the canyon. The upstream face of the dam is visible. The intake towers are nearing completion. Temporary bridges, scaffolding, a train trestle, and trams traveling across...
300	View of Hoover Dam during construction	View of Hoover Dam construction site with the intake towers and Colorado River visible above. The power houses are under construction at the base of the dam. A cable spans the canyon and several construction buidngs are shown....