Orville Dam Rebar Grid Section Collapses

For those who are not enamored by California’s management of Oroville Dam, this article from Capital Public Radio will lend some more perspective.

An excerpt.

A temporary section of the new Lake Oroville main spillway project fell over last week after two iron braces failed to hold it in place. But the Department of Water Resources says the spillway was not damaged.

The section was a grid made of rebar that was to be used as a guide when pouring concrete. Tony Meyers, the project manager for the Department of Water Resources, says the weight of the grid caused the telescoping braces to bend and fail.

“The braces were engineered by a registered engineer. They’re all good,” he said.

But he added that there was “one caveat”: “The manufacturer’s specifications that if the braces, if they are extended past 30 feet, need to have a secondary brace on them.”

The wall was higher than 30 feet, however, and the braces did not have a secondary brace to support them.

Meyers says the structure took about 10 seconds to fall and people working nearby were able to move to safety. No one was injured.

DWR says it chose to disclose the incident in the interest of the public receiving accurate information.

Crews are working to replace the top section of spillway after completing the bottom two sections last year. This incident has not delayed construction.

Retrieved August 28, 2018 from http://www.capradio.org/121936?utm_source

About David H Lukenbill

I am a native of Sacramento, as are my wife and daughter. I am a consultant to nonprofit organizations, and have a Bachelor of Science degree in Organizational Behavior and a Master of Public Administration degree, both from the University of San Francisco. We live along the American River with two cats and all the wild critters we can feed. I am the founding president of the American River Parkway Preservation Society and currently serve as the CFO and Senior Policy Director. I also volunteer as the President of The Lampstand Foundation, a nonprofit organization I founded in 2003.
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