Search for exactly "Construction"

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351. Dump trucks on temporary dike in front of portals of diversion tunnels no. 3 and...
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352. Panoramic view of the Upper Cofferdam, looking downstream
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353. Hoist House and Nevada Anchorage, Government Cableway.
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354. Trains on Elevation 720 Railroad Bench, hauling conrete to Hoover Dam.
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355. Hoover Dam cooling tower and refrigeration plant during construction
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356. Hoover Dam during construction
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357. Interior of spillway tunnel, Hoover Dam site
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358. Boulder Canyon.
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359. Construction of intake towers and spillway -- Hoover Dam site
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360. Himix Concrete Plant at Hoover Dam site
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361. Forms for transition at the downstream plug of Diversion Tunnel No. 2.
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362. Nevada spillway weir section.
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363. Construction of the power house foundation in Hoover Dam
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364. Close-up of slot at the upstream face of Hoover Dam
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365. Arizona intake tower derrick.
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366. Excavation for downstream plug, Diversion Tunnel No. 2.
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367. View of two hundred ton two-way trailer, with test load
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368. Excavation for downstream plug, Diversion Tunnel No. 3.
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369. Aerial view of Hoover Dam construction site looking upstream on the Colorado River
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370. Forms for Arizona power house retaining wall.
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371. Closeup of cooling pipe layout in panel H-3.
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372. Train at Himix Concrete Plant -- Hoover Dam site
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373. Close-up of construction site, Hoover Dam.
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374. Intake towers being constructed for Hoover Dam
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375. View of power houses being constructed at the Hoover Dam site
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376. Close-up of no. 3 Arizona intake tower, showing the cylinder gates being placed.
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377. Close-up of the Arizona intake towers, from the high catwalk.
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378. Aerial view of the Hoover Dam construction site looking upstream on the Colorado River
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379. Night photograph of power house construction.
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380. Upstream face of Hoover Dam, during construction
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381. View of Hoover Dam during construction
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382. View of the power house and valve houses from top of Hoover Dam
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383. Signing of the contract between the U.S. government and Six Companies for construction of Hoover...
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384. Diversion tunnel no. 2, showing the pumpcrete line to the upstream plug
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385. Number 3 plug and raise
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386. View of no. 4 plug, Hoover Dam site
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387. Arizona intake towers, from the Nevada side
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388. Nevada intake towers, from the Arizona side.
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389. Switchyard at Hoover Dam during construction
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390. Arizona spillway, looking upstream.
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391. Hoover Dam from the Arizona side
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392. Looking into the Arizona spillway raise.
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393. View of the Hoover Dam costruction site from the lower cofferdam
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394. Diversion tunnel no. 1 trashrack and counterweight assembly just prior to the diverting of the...
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395. Construction -- Hoover Dam outlet works
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396. Night construction -- intake tower at Hoover Dam
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397. Hoover Dam during construction
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398. Night view of outlet works at Hoover Dam during construction
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399. Arizona valve house viewed from the Nevada side of Hoover Dam
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400. Interior of the Nevada valve house
 

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