Tags: oroville | spillway | debris | dam

Oroville Spillway Debris Being Cleared After Water Flow Stopped

Image: Oroville Spillway Debris Being Cleared After Water Flow Stopped

Oroville Dam's crippled spillway is inspected via helicopter after it was shut off Monday, Feb. 27, 2017, in Oroville, Calif. (Paul Kitagaki Jr./The Sacramento Bee via AP)

Tuesday, 28 Feb 2017 10:18 AM

OROVILLE, Calif. (AP) — Water was stopped at Oroville Dam's spillway while workers start clearing out massive debris that's blocking a hydroelectric plant from working.

Water will not be released for the next five to seven days, in the hopes that workers can remove between 500,000 and 1 million cubic yards of debris by barge and excavator, said Lauren Bisnett, spokeswoman with the Department of Water Resources.

"That is certainly the goal," she said. "They've got to get down and see what's going on."

Water managers turned to the emergency spillway for the first time in the 48-year history of the country's tallest dam after a chunk of concrete tore out the main spillway following heavy rains.

But the flow of water ripped through a road below and carved out deep chasms in the ground, leading authorities to evacuate nearly 200,000 people Feb. 12 for two days for fear the emergency spillway could fail.

Monday's slowdown started at 6:45 a.m., going from 50,000 cubic feet per second to zero. The water was shut off by 2 p.m.

Removing the debris will bring officials one step closer to restarting the Hyatt Power Plant, which in turn will help remove water from the dam to make way for more water in advance of the spring runoff, Butte County Sheriff Kenneth Honea said Monday.

Mountains have swelled with a massive snowpack in Northern California this winter.

"We're in it for the long haul and I've asked the public to be aware of that and be patient as we go forward," Honea said.

The average inflow into Oroville Dam this month was 570 percent of the average for February, the department said. The reservoir's water level has been reduced nearly 60 feet since it reached capacity at 901 feet earlier this month, the department said.

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Water was stopped at Oroville Dam's spillway while workers start clearing out massive debris that's blocking a hydroelectric plant from working.
oroville, spillway, debris, dam
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2017-18-28
Tuesday, 28 Feb 2017 10:18 AM
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