Results
376 - 400 of 1628 Items << < 11 12 13 14 15 16 17 18 19 20 > >>
376 - 400 of 1628 Items << < 11 12 13 14 15 16 17 18 19 20 > >>
|
Shows the Nevada power house under construction at the dam site. Various buildings, concrete forms, and the wall of the rising dam can be seen. Behind the dam, part of an intake tower is visible as well as a cable across the canyon.
1934-05-29
|
|
View from the Arizona side of the Hoover Dam construction site of work on the foundations of the Nevada intake towers in the wall of Black Canyon. A railroad bench for delivering concrete is seen near the bottom, in front of the partially...
1934-02-20
|
|
View of construction on the foundations of the Arizona power house in the Colorado River bed in Black Canyon. Concrete pouring forms stand in the river bed below the partially finished face of Hoover Dam, and other construction equipment can be...
1934-04-01
|
|
View of initial construction of the Nevada intake towers in the Hoover Dam construction site in Black Canyon. Temporary stairs are seen attached to the canyon wall, and a railroad bench is seen near the bottom of the canyon wall.
1933-12-27
|
|
View of the weir section of the Nevada Spillway nearing completion. Construction equipment and concrete pouring forms are seen around the area. Two small buildings, one raised on a trestle and one below the spillway, are also visible. Two...
1934-01-24
|
|
Cables run through a tower in Black Canyon. Two men stand at the foot of the anchoring cables outside a hoisting mechanism building in the Hoover Dam construction site. Trucks and temporary buildings are seen outside the hoisting house.
1933-08-09
|
|
Overhead view of the construction of Hoover Dam in Black Canyon. Looking upstream, the Colorado River is visible above the dam site. Also shows concrete forms, a train winding along the side of the canyon, and various construction buildings.
1933-09-07
|
|
Aerial view of multiple concrete pouring forms on Hoover Dam, seen from downstream on the Colorado River in Black Canyon. Cables, pulleys and catwalks are suspended over the river. Some construction equipment can been seen on the mountains.
|
|
This photo shows the construction of the foundation of Hoover Dam on the floor of Black Canyon. Trucks, construction equipment, and cranes can be seen as well as several construction buildings. Photo taken from high above the canyon.
1933-07-22
|
|
This is a view of the wooden concrete forms used in the construction of Hoover Dam, looking upstream. Buildings and vehicles are visible. The photo was taken from high above the site.
1933-08-15
|
|
Shows the head tower hoist house and permanent cableway. Cars and trucks are visible on the road across the dam as well as next to the hoist house. A transmission tower can be seen and construction workers are walking along the road.
|
|
Shows a box of equipment being lowered by cable into Black Canyon during the construction of Hoover Dam. Roads and a truck are visible.
|
|
Shows a hydraulic turbine being transported to Hoover Dam. The sign on the turbine says "Hydraulic turbines, Boulder Dam, Allis Chalmers". A man is standing next to the turbine, which is fastened to a flat car (railroad car).
|
|
Shows a giant penstock pipe being lifted by hoisting machinery. Several construction workers are looking on and one is helping with the lifting. A tractor is also visible.
|
|
Close-up view of the upstream face of Hoover Dam and part of the power houses. Hoisting machinery is visible.
|
|
View of the power house at Hoover Dam during construction. This photo was taken from above, looking down on the power house. A crane is lowering a piece of equipment to the cofferdam. Cables, trucks, and construction equipment can be seen.
|
|
View of construction on the bridge above the Arizona spillway. Concrete pouring forms are in place and an electric dragline sits above the spillway on the top left. The walls of Black Canyon are seen in the background.
1935-01-28
|
|
View looking toward the Arizona spillway while it is under construction. Note the excavation for the float well supply line. Power shovels are visible.
1935-08-26
|
|
View looking upstream of the dam and power house. Cables with trams and temporary bridges span the canyon. Trucks, roads, buildings and construction equipment can be seen.
1935-07-25
|
|
Shows the upstream side of Hoover Dam during construction. Cableways with trams span the canyon. Intake towers and power houses are visible along with other buildings and structures.
1935-01-02
|
|
Shows the Nevada intake towers at Hoover Dam under construction. Hoisting equipment and cables are visible. At the left of the photo is the face of Hoover Dam. Some buildings and structures are visible at the base of the towers.
1935-02-25
|
|
Shows a power house at Hoover Dam being built. Note the Universal crane on top. The girder on the flat car has just been lowered by means of the government cableway. This photo was taken from the Nevada side of the canyon.
1935-04-25
|
|
Telephoto view of the Nevada valve house under construction, taken from the Arizona side of the canyon. Railroad tracks, various buildings, and cables are visible on the side of the canyon.
1935-02-25
|
|
Two construction workers standing on a suspended scaffold work on the drum gates on the Arizona spillway.
1934-06-21
|
|
View of construction on the Nevada power house. Framework and concrete pouring forms cover the site. Penstock tunnel openings are visible in the canyon wall in the background. Construction equipment, vehicles, temporary buildings and construction...
1934-07-20
|
