Massive debris pile emerges from water near troubled dam
OROVILLE, Calif. — Crews worked Tuesday to clean up dirt and debris from the base of Oroville Dam and biologists rush to save stranded fish after state officials shut off the flow of water from a damaged spillway at the Northern California lake.
Officials brought in extra heavy equipment to remove sediment, concrete and debris that washed down the eroded hillside and collected at the bottom. The erosion forced authorities to order nearly 200,000 people to evacuate three weeks ago when experts feared it would undermine a concrete wall holding water in the lake and unleash a 30-foot wall of water.
Department of Water Resources officials estimated the debris pile measured 1 million cubic yards — enough to fill more than 300 Olympic-sized swimming pools.
Water officials announced Monday that they were closing the floodgates at the top of the spillway, stopping the release of water from Lake Oroville for the first time in three weeks and showing that much of the concrete spillway is now gone. It’s been replaced by a deep gash in the earth on both sides.


