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"1650, 1651 and 1652 These pictures together form a panoramic view of operations on the Nevada rim of the Canyon.
September 30th, 1932.
1657, 1658 and 1659 These pictures taken together form a panoramic view of operations on the Arizona rim...
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"1431 Excavation for benches for movable cableway towers being carried on, near Lookout Point. August 14th, 1932.
1442 ""Powder-monkeys"" load dynamite cartridges with electric primers at isolated points. August 15th, 1932.
1444 Workmen...
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"1705 Closeup of Excavation of Trench for Cutoff Wall at Upper Cofferdam. October 29th, 1932.
1704 Closeup for Excavation for Upper Cofferdam. October 29th, 1932.
1707 Telephoto picture of Excavation for Upper Cofferdam, taken from...
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"1588 View of Upper Portals of Diversion Tunnels No. 1 and No. 2 from Arizona side. September 9th, 1932.
1610 Upper Portals, showing temporary Trestle and Dyke in upper Cofferdam area. September 17th, 1932.
1662 Upstream Cofferdam progress....
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"1349 The highway which will cross the dam, under construction. Lookout Point is shown in the center of the picture. Method of riprapping fill shown in foreground. July 18, 1932
1300 Looking downstream from Lookout Point at the highway under...
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"1524 Nevada Spillway, looking upstream. August 29th, 1932.
1525 Nevada Spillway, looking downstream. August 29th, 1932.
1527 Crew drilling in Nevada Inclined Spillway Tunnel, leading down into Diversion Tunnel No. 1. August 29th, 1932."
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"1541 Lower Portals of Diversion Tunnels No. I and No. 2, during flash rise in the River. August 31st, 1932.
1542 Lower Portals of Diversion Tunnels No. 3 and No. 4, during flash rise in the River. August 31st, 1932.
1546 Closeup of Lower...
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"1674 Closeup of Bulkhead Gate at Upper Portal of Diversion Tunnel No. I. October 25th, 1932
1696 Part of shipment of Bulkhead Gate Structural Steel transported by special train from Los Angeles Plant of Consolidated Steel
Corporation....
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"1319 The danger of high water having passed for 1932, the concrete arch coffer dams are being blasted out of the lower portals of diversion tunnels. View shows Diversion Tunnel No. 2 July 15th, 1932.
1337 A protecting dike of rock is left...
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"1630 Bulkhead Gate during construction at Upper Portal of Diversion Tunnel No. 1. September 22nd, 1932.
1632 Bulkhead Gate during construction at Upper Portal of Diversion Tunnel No. I. September 28th, 1932.
1635 Bulkhead Gate...
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"1458 Interior view of Six Companies Inc. garage and automobile repair shop in Boulder City. Complete facilities are installed for overhauling all classes of automobile equipment. August 15th, 1932.
1474 Interior of tire shop of Six...
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"1411-1412 These pictures together with the two on the opposite page, form a panorama of operations being carried on at the canyon rim, on the Nevada side. Photograph was taken from the Arizona spillway site. To the left is shown the Black...
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"1304 Cloudburst in the water-shed of Las Vegas Wash assumed such proportions as to wash out a section of the railroad fill. July 12th, 1932.
1306 Twelve hours later the stream-bed is perfectly dry, but the force of the flood is graphically...
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"1687 Rip-Rapped Fills on Black Canyon Highway. October 25th, 1932.
1717 Cutoff Trench at Upper Cofferdam, looking towards cliff from dike. October 31st, 1932.
1700 Operations on Arizona rim of Canyon, taken from Old Observation Point....
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"1355 Workmen loading out for the canyon on the day shift in front of Six Companies Inc. mess hall. Dormitory shown in the background. July 20th, 1932.
1356 Transport trucks holding 48 men used for hauling workman to and from the canyon...
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"1413-1414 These pictures, together with the two on the opposite page, complete the panorama of the canyon rim operations on the Nevada side of the river. In the picture to the left is shown the open cut excavation for the Nevada spillway....
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"21519 Closeup of Drilling Operations in Arizona Inclined Spillway Tunnel. August 29th, 1932.
1605 Upper end of Arizona Inclined Spillway Tunnel. September 17th, 1932.
1518 Closeup of Portal of Arizona Inclined Spillway Tunnel leading down...
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"1450 Looking across the reservoir area, which will be submerged when Hoover Dam is completed. The flat-topped hill in the center of the picture will form a small island and the ridge in the foreground will be totally submerged. August...
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"1699 Erection of Steel Trestle and Headtower for No. 7 and No. 8 Cableway, Nevada side. October 29th, 1932.
1710 Government Materials Warehouse and Yard, near Boulder City. October 29th, 1932.
1684 Looking down on Nevada Runway for...
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"1647 Nevada Inclined Spillway Tunnel leading down into Diversion Tunnel No. 1. September 28th, 1932.
1515 Building fill, Arizona side, on which Tail Towers of Cableway No. 5 and No. 6 will run. August 29th, 1932.
1623 Arizona side of...
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"1500 Enlarged sections of the Diversion Tunnels, which are later filled with Concrete Plugs, are lined with concrete, and at the same time made to conform to an exact 50-foot circular section, by means of temporary wooden panel forms, which...
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"1725 Closeup of Upper Portal of Diversion Tunnels Nos. 3 and 4, during preparations for blast. November 13th, 1932.
1733 Dumping materials at temporary pile bridge to complete diversion of the Colorado River. November 13th, 1932.
1728...
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"1539 Crew of Highscalers stripping Canyon Wall. August 31st, 1932.
1598 Erecting Sidewall Jumbo at Upper Portal of Diversion Tunnel No. 1. September 10th, 1932."
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"1925 General view of Downstream Cofferdam and excavation m river bed for Power House, February 10th, 1933.
1996 View of the Himix Concrete Mixing Plant. February 28th, 1933.
1992 Looking downstream in Black Canyon from the upstream...
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"2336 150-ton Government Cableway, completed and in operation. August 19th, 1933.
2326 Blending Plant, recently placed in operation, at the Himix Concrete Plant. August 18th, 1933. -
2349 Hoover Dam, Cooling Tower and Refrigeration Plant,...
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