How A Bridge is Built Over the Canyon - Hoover Dam Bypass - Arch Bridge
With a very limited ground support, 900 ft above the river, in the middle of the air, a gigantic bridge is built across the canyon. Hoover Dam Bypass Bridge - Mike O'Callaghan Pat Tillman Memorial Bridge
0:00 Bridge Segments
1:28 Cable Cranes
3:29 Pier Foundation
4:27 Skewback & Piers
6:16 Building the Arch
8:57 Spanrdel Columns
9:45 Arch Bridge Load Bearing
Sound and Music license from SoundStripe
Alex Kipp - Bright and Warm Horizon
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