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

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	Title	Description
1	Construction of Hoover Dam	View of construction on the canyon floor of Black Canyon. Trucks and roads are visible. Some buildings can be seen also. The concrete pouring forms and a cofferdam are also visible.
2	Hoover Dam construction	View of the construction of Hoover Dam, looking upstream. Shows concrete forms, high scaling equipment, construction roads, and a train winding along the side of the canyon. The Colorado River is visible above the construction site; various...
3	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...
4	Hoover Dam construction	View of the Hoover Dam construction site from high above the canyon. The Colorado River is visible above the dam site. A cable spans the canyon, there is a train winding along the canyon wall, and construction roads...
5	Looking downstream on the Hoover Dam construction site	This view, taken from the Nevada side of the canyon, shows the lower cofferdam being excavated. Trucks, buildings, , and construction roads are visible. The Colorado River can be seen below the site. There is a temporary...
6	Construction view of Hoover Dam, looking downstream	A view, looking downstream, of the spillways and intake towers during the construction of the dam. Temporary bridges and cables with trams span the canyon. Various buildings, a trestle, and construction roads can also be seen.
7	View of the power house and valve houses from top of Hoover Dam	View of the power house and valve houses from the top of the dam. Various buildings and structures can be seen as well as concrete forms. There are construction roads below the dam and a temporary bridge spans...
8	View of Arizona spillway during construction	A telephoto view of the Arizona spillway during the construction of Hoover Dam. Shows the bridge and control house. Trucks, various buildings, and some construcion workers are visible. Cables are overhead and construction roads snake up the...
9	Hoover Dam during construction, from the Nevada side	Shows the dam from the Nevada side. The completed road, parapets, and intake towers are visible. One of the spillways can be seen in the background. There are trucks and people on the new road.
10	Hoover Dam under construction	Aerial view of the downstream side of Hoover Dam showing the intake towers and spillways. Construction equipment, buildings, and roads are visible. There are some cars on the road crossing the dam.
11	Switchyard control house, yard and present substation -- Hoover Dam site	Shows the switchyard control house, yard and substation. Workers, trucks, construction equipment and roads are visible.
12	Downstream view of Hoover Dam construction	Shows a downstream view of the Hoover Dam project from the crest of the dam. Power house and lower portals of diversion tunnels are seen. Buildings and structures, trucks and roads are visible also.
13	Hoover Dam switchyard during construction	Shows the Hoover Dam switchyard during construction and excavation. Buildings, roads, and building materials are visible. Trucks and a power shovel are also shown.
14	Top of Hoover Dam during construction	Shows the road approaching Hoover Dam from the Nevada side and the top of the dam during construction. Note the rubble wall being built and excavation for tower footings. Trucks, hoisting machinery, and cables with trams are visible....
15	Looking downstream at Hoover Dam under construction	View of Hoover Dam during construction. The view was taken from high above, looking downstream, and shows the intake towers, roads, buildings and structures, a cable across the dam, and the reservoir (later known as Lake Mead).
16	Spillway and Hoover Dam during construction	Shows the Nevada spillway and the face of the dam in the background. Cars are visible on the road across the top of the dam. Some of the intake towers are also visible. Construction equipment, buildings, and...
17	Hoover Dam during construction	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.
18	Looking across the top of Hoover Dam during construction	View from above of the dam, showing the road across the top. Intake towers are visible also. Cars are on the road across the top of the dam.
19	Power house during construction -- Hoover Dam	View of the power house from the top of Hoover Dam, looking down. The valve houses are visible on the sides of the canyon. Roads, trucks, buildings, and the concrete pouring forms can also be seen.
20	Hoover Dam during construction	Upstream view of Hoover Dam construction. Buildings, trucks, and roads are visible. Trams are crossing the canyon on a cableway suspended above the dam.
21	Preliminary construction at Hoover Dam site	"Down-stream from Observation Point -- note tunnel in center of picture. Trucks hauling muck from Nevada portals must go through this tunnel to dumping grounds one mile away. [150 feet to river straight down]"-- [hand-written inscription on back...
22	Hoover Dam construction	"Down stream from Observation Point. Buildings on the right side are water sedimentation plants. Water treated for Boulder City. Left side is Arizona side of River." [hand-written inscription on back of photo] This photo was taken high...
23	Colorado River, early stages of dam construction	View of The Colorado River and the construction roads on the sides of the canyons and mountains. Taken from very high above. Some buildings and structures are also visible.
24	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.
25	Hoover Dam construction equipment	Shows a box of equipment being lowered into Black Canyon during the construction of Hoover Dam. Cables, roads, and a truck are visible.
26	Hoover Dam construction	Shows a general view of dam construction. Cables, buildings, and roads are visible. Concrete pouring forms can be seen at the bottom of the canyon. A portion of the Colorado River is also visible. The...
27	Early stages of construction of Hoover Dam	Handwritten inscription on back of photo: "Hoover Dam -- Down the Colorado River. Dump trucks are on Arizona side and hauling muck to dumping grounds -- no muck can be dumped in the river." The road along...
28	Construction of Hoover Dam	Construction photo showing the Colorado River with temporary suspension bridges, roads along the side of the canyon, trucks, and buildings.
29	Aerial view -- Hoover Dam construction	Aerial view of Hoover Dam, Black Canyon, and the Colordo River during the construction of the dam. Two portals of the diversion tunnels are visible. There are trucks and buildings on the cofferdam. The face of the...
30	Construction -- Hoover Dam	Close-up view of the face of the dam with the concrete pouring forms. The face is nearly completed. A road is visible behind the dam.
31	Future Hoover Dam reservoir area seen from Black Canyon	View from Black Canyon of the area which, when submerged, will become the Hoover Dam reservoir. In the foreground, a car is seen traveling a dirt road, and a lone construction worker views the scene from atop the rocks....
32	Constructing highway to dam site	A view of construction workers operating tractors as they construct a highway across the desert floor during the summer of 1931.
33	Hoover Dam and area	Panoramic view of Hoover Dam and surrounding area. The photo is looking down towards the intake towers and the crest of the dam. The mountains and roads in the background can be seen. Cars are visible on...
34	Hoover Dam and surroundings	View of the intake towers and crest of Hoover Dam, taken from the side, looking down. Cars are parked on the road which crosses the dam and the roads and mountains are visible in the background.
35	Crest of Hoover (not Boulder) Dam	View of the top of the dam from the Arizona side. Intake towers are observed on the Arizona and on the Nevada side. The reservoir (Lake Mead)is more than two-thirds filled with water. Automobiles are seen on the road across...