Search for all of "Transportation"

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	Title	Description
101	Aerial view of Hoover Dam and reservoir (Lake Mead)	Aerial view of Hoover Dam showing reservoir (Lake Mead), the spillways and intake towers, and the crest of the dam. Cars are parked on the road leading across the dam and the road leading to the dam is visible...
102	Construction of Hoover Dam diversion tunnel	Shows a dump truck and construction workers framed at the mouth of a diversion tunnel during the construction of Hoover Dam.
103	Construction of Hoover Dam	Shows a truck and wood forms inside a diversion tunnel during the construction of Hoover Dam.
104	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.
105	Portals, Hoover Dam construction	"Shows men placing dynamite to flood entrance blocks away from #3 and #4 Arizona side."(inscription on back of photo) The portals to the diversion tunnels are visible. The Colorado River is shown below the portals and buildings and trucks...
106	Railroad cars and siding	Railroad cars and siding in the vicinity of Hoover Dam. They were used to transport construction materials to the dam site.
107	Transport trucks at Hoover Dam site	Shows transport trucks and construction workers in Black Canyon next to railroad tracks.
108	Construction -- near Hoover Dam	Shows construction buildings, roads, and trucks in the mountains near the Hoover Dam site.
109	Barge on Colorado River near Hoover Dam	Shows a car and a barge on the Colorado River near the Hoover Dam site.
110	Railroad cars transporting materials for Hoover Dam construction	Shows railroad cars transporting materials for the construction of Hoover Dam. A man is standing on one of the railroad cars.
111	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...
112	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...
113	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.
114	Hoover Dam construction	"Downstream from upper portals. Note the two portals on Arizona side of river and new suspension bridge under construction."[hand-written inscription on the back of the photo] Cables are visible overhead and a truck is also in the picture.
115	Hoover Dam construction	"Upstream from observation point. Note car going down road." [hand-written inscription on back of photo] Taken from high above the Colorado River, this view shows roads, bridges, buildings and structures, and a car on the side road.
116	Penstocks at Hoover Dam construction site	Shows the giant penstocks used in the tunnels at Hoover Dam. One is on a railroad flatcar, the other is being hoisted from the railraod car. There is a construction worker standing on top of the penstock in...
117	Penstock pipe at Babcock & Wilcox Plant	Shows a huge penstock pipe on a railroad flatcar. A man is posed standing inside the pipe. "13' diameter penstock pipe". (hand-written inscription on back of photo)
118	Penstock pipes at Babcock & Wilcox Plant	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.
119	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...
120	Construction of Hoover Dam	"First load of muck used in coffer dam [sic]. Looking at Arizona portals #3 & #4. Water now flowing thru these." (hand-written inscription on back of photo) Shows a dump truck dumping the muck and construction...
121	Penstock pipes at Babock & Wilcox Plant	Shows giant penstock pipes and two automobiles at the Babcock & Wilcox Plant, near the construction site of Hoover Dam.
122	Penstock pipes at Babcock & Wilcox Plant	Shows a huge penstock pipe at the Babcock & Wilcox Plant near the site of Hoover Dam construction. Several workers are pictured, and a steam train engine is parked on the railroad tracks inside the huge pipe.
123	Penstock pipe at Babcock & Wilcox Plant	Shows giant penstock pipes at the Babcock & Wilcox Plant near the Hoover Dam construction site. Construction workers are visible standing next to one of the pipes, which is 30 feet in diameter. The pipe is on...
124	Hydraulic turbine for Hoover Dam	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).
125	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.
126	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.
127	Construction -- Hoover Dam	Handwritten inscription on back of photo: "Rex motor mixer that has been picked off a white truck and being swung into position at tunnel #1 with load of cement." Shows hoisting machinery, railroad tracks, a steam locomotive, a...
128	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.
129	Construction equipment -- Hoover Dam	Shows a box of equipment being lowered by cable into Black Canyon during the construction of Hoover Dam. Roads and a truck are visible.
130	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...
131	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...
132	Cement plant -- Hoover Dam site	Shows the cement plant in Black Canyon at the Hoover Dam construction site. A train is visible on the tracks above the plant.
133	Rock and gravel plant near Hoover Dam site	Handwritten inscription on back of photo: "Rock and gravel plant -- Picture taken before its completion." Other buildings and trucks are visible.
134	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.
135	Construction of gravel plant	View of the gravel plant being constructed near the Hoover Dam site. Railroad tracks and a flatbed railroad car are visible.
136	"Big Bertha" transporting dam workers	View of a transport bus called a "Big Bertha", transporting construction workers to the Hoover Dam construction site. A car is visible behind the truck and there are pipes in the background of the photo which were used in...
137	Six Companies Inc. truck, employees	Vew of a Six Companies Inc. trailer loaded with building materials. Some employees are posed, standing next to the truck. "La Crosse Tu-way Trailer"--Sign on trailer. The truck is loaded with rebar.
138	Six Companies trailer	Shows Six Companies' employees standing around a trailer loaded with construction materials for Hoover Dam. A tractor is also visible. Sign on the truck says: "Six Companies Inc. LaCross Tu-Way trailer. Net load 185 tons. Total load...
139	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...
140	Construction at lower portal of Hoover Dam	Shows construction at the lower portal of Hoover Dam. Part of the bridge is visible as are trucks, buildings, and construction workers. Part of the Colorado River is visible and also the wall of Black Canyon.
141	Power houses being constructed at Hoover Dam	Shows the concrete pouring forms for the base of the dam. The upper cofferdam is in the background. Cableways, buildings, construction workers and trucks are visible. A railroad track runs along the side of the wall of Black Canyon.
142	Aerial view of Hoover Dam and Lake Mead	Aerial view of Hoover Dam shows part of the downstream face of the dam, the intake towers, and Lake Mead (reservoir) starting to fill. Roads around the dam and across the top of it are visible. Photo shows...
143	Aerial view of Hoover Dam site	Aerial view of Hoover Dam taken from the Arizona side. Part of the upstream face is visible as are the intake towers. The reservoir (Lake Mead) is forming and cars are visible on the road across the top...
144	Construction of Hoover Dam	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...
145	Boulder City department store at night	Night view of the Boulder City Company Store. Cars are parked alongside the store.
146	Construction of Hoover Dam	"Head tower hoist house and anchorage of permanent 150 ton cableway at Boulder Dam runs from upper end of hi[gh]mix gulch." (handwritten inscription on back of photo) Construction workers, trucks, and buildings are also visible.
147	Hoover Dam construction	Panoramic view of Black Canyon and Hoover Dam under construction. Two of the portals to the diversion tunnels are visible. The face of the dam is nearing completion and the concrete pouring forms can be seen. Part...
148	Construction of Hoover Dam	Construction photo showing the Colorado River with temporary suspension bridges, roads along the side of the canyon, trucks, and buildings.
149	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...
150	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.