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A section of pipe is moved into a tunnel

Name: A section of pipe is moved into a tunnel
Uploaded: 2026-08-31T03:00:18.622Z
Duration: 1 min 14 s

In the dark mouth of a tunnel cut into the rock, a huge riveted section of steel pipe rests on a low carriage, held from above by a cable; a worker in a vest stands at the left and another is at work beside the carriage, both small against the pipe. The sections were lowered into the canyon by cableway and moved into the tunnels, where they were joined into the penstocks that carry water to the turbines.

Period: c. 1934–1935
Credit: US National ArchivesPublic Domain (NARA) · Digitalisierung und Bearbeitung: © zb Media GmbH

Specifications

Clip name: HFE004111
Length: 1' 14"
Aspect Ratio: 16:9
Frames per Second: 24 fps
Chroma Subsampling: yuv422p10le
Resolution: 1920 × 1080
Format: MOV
File Size: 1,635,594,756 bytes

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