Archival objects in this container: Bucyrus-Erie 43-B gas-air shovel was the only piece of equipment caught by the flood: photographic print, 1932 February 10 Close-up of drag line loading 30 cubic yard western side-dump car. Plymouth gasoline locomotive switiching: photographic print, 1932 February 10 Close-up of Number 1074 to the left. Workmen are 700 feet above river: photographic print, 1932 April 01 Close-up of upper portals of diversion tunnels Number 3 and 4, showing flow in diversion tunnel Number 4, shortly after blast: photographic print, 1932 November 13 First "jumbo" for pouring concrete lining in top or arch section of tunnels was erected on "beach" in front of tunnel Number 2 and transported across river in sections by cableway: photographic print, 1932 May 20 Flashlight close-up of workmen drilling on invert excavation: photographic print, 1932 March 07 Interior of diversion tunnel Number 3, showing method of pouring alternate slabs in side wall section of tunnel lining. Lining form is shown in background: photographic print, 1932 June 22 Interior of one of many drill sharpening stations, showing forge and Ingersoll-Rand drill sharpener: photographic print, 1932 February 15 Jackhammer men scaling loose rock from canyon walls near site of Nevada spillway: photographic print, 1932 February 15 Looking downstream from same point as photograph number 989. Lower portals of diversion tunnels are just below. This picture presents graphic view of problem of muck disposal: photographic print, 1932 March 14 Mack truck with 14 cubic yard body being loaded at Nevada spillway cut. Five similar trucks being used on this operation: photographic print, 1932 March 18 Night view, looking upstream from below lower portals of diversion tunnels. Canyon presents a spectacular sight at night with myriads of lights: photographic print, 1932 April 08 One of four photographs, forming panorama of operations being carried on at canyon rim, on Nevada side. Photo was taken from Arizona spillway site. To the left is shown Black Canyon Highway. High level mixing plant will be located behind fill on the road. To the right is shown highway extension road to Nevada spillway. Note shovel boom projecting at former site of Lookout Point: photographic print, 1932 August 12 Panoramic view of upper cofferdam, looking downstream: photographic print, 1932 November 26 Photograph of blast at same place shown above, taken from opposite, on Black Canyon Highway: photographic print, 1932 August 16 Same blast as photograph number 1063, taken from river-level looking downstream: photographic print, 1932 March 28 Section of arch jumbo form being transported across river by overhead cableway. Note workman on top of form: photographic print, 1932 June 10 Skip-load of workmen being transported across Colorado River from Arizona side: photographic print, 1932 April 01 View of gravel plant, showing live storage of screened aggregate and sand in foreground. Storage pile for raw aggregate in background: photographic print, 1932 March 02 View of warehouse and machine shop area. Boulder City in background: photographic print, 1932 February 15 View showing method of pouring concrete in invert section of tunnel lining: photographic print, 1932 March 18 Visitors to project are intrigued by the multiplicity of dish pans used as reflectors, which are scattered all over the project where night work takes place. This is the crew that installs them: photographic print, 1932 August 15 Workmen loading holes with dynamite, in preparation for blast on cableway bench excavation: photographic print, 1932 August 15 "Powder-monkeys" load dynamite cartridges with electric primers at isolated points: photographic print, 1932 August 15 Blast in scaling down canyon walls for construction of intake towers: photographic print, 1932 March 28 Load More
