Transcript for Challenge at Glen Canyon, segment 09 of 11

What remained was the dramatic test of one of the spillways to make sure it would operate as planned, hopefully without cavitation.

One seven five. Instrumentation ready, Wade?

Ready here.

Seven one eight oh. You ready on top, Mudeye?

Yeah, everything's set up here.

Okay. Five. Four. Three. Two. One. Start.


After each phase of the five days of testing, Bureau of Reclamation officials carefully inspected the left spillway for any damage. Absolutely no cavitation damage could be detected. The design and installation of the air slot was a complete success. Through the spillway had roared water at over one thousand five hundred tons per second, at a velocity exceeding one hundred miles per hour, yet it had caused no cavitation.

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