Watch the concrete pour on the Oroville Dam upper spillway as repairs continue

Kiewit Corp. begins pouring concrete on the upper spillway and continues rock cleaning to prepare the spillway's foundation, part of the Lake Oroville spillways recovery project, in this July 20, 2017, video.
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Kiewit Corp. begins pouring concrete on the upper spillway and continues rock cleaning to prepare the spillway's foundation, part of the Lake Oroville spillways recovery project, in this July 20, 2017, video.

Catastrophic engineering expert asks: Is Oroville Dam leaking?

July 20, 2017 05:32 PM