Lake Oroville


Lake Level
700.87 FEET
Full Pool: 728.1
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Lake Oroville News

The California Department of Water Resources Wins Dishonor of California Golden Fleece Award for Its “Patch and Pray” Approach to Dam Safety

Date: 10/16/2017 10:55:00 PM

In February 2017, nearly 200,000 residents of several Northern California counties were displaced from their homes after the dam’s two spillways were judged inadequate to safely relieve the rising water levels in the Lake Oroville reservoir. This

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Lake Oroville flood season operations plan starts with lower lake level

Central Valley Business Times

Date: 10/16/2017 9:03:00 PM

Lake Oroville will be kept at lower-than-average lake levels during the winter months to provide space for winter rains and to manage releases from the substantially reconstructed main spillway, the Department of Water Resources says. “This plan puts

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DWR: “Can’t say with certainty” whether spillway ramp will reopen

Oroville Mercury-Register

Date: 10/16/2017 6:05:00 PM

“That’s a homeland security concern,” Mellon said. “That is top of mind, not just at Lake Oroville.” Rep. Doug LaMalfa, R-Richvale, said closing the spillway ramp would be an overreaction and he is “100 percent opposed” to the idea

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What’s happening Monday in Oroville

Oroville Mercury-Register

Date: 10/15/2017 8:31:00 PM

Butte County Public Health Department: Oroville clinic, 78 Table Mountain Blvd. Appointments, 538-7341. Alcoholics Anonymous, Lake Oroville Fellowship: Noon, 8 p.m. 2471 Bird St. 538-8180. Victims of domestic Violence Support Group: Noon. 1931 Arline Rhine

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Editorial: Hits and misses

Chico Enterprise-Record

Date: 10/13/2017 9:47:00 PM

But here’s the problem, and it dates back to the evacuation of the Feather River corridor after the Lake Oroville spillway disaster. There was looting, and in one case a person caught looting was given probation by a judge when found guilty by a jury

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12:08:58 AM
11/23/2017 - Thanksgiving
12/25/2017 - Christmas
1/1/2018 - New Year's Day
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• River: Feather River
• Length: 167 Miles
• Surface Area: 15,810 Acres
• Volume: 3,537,577 Acre Feet
Lake Oroville, is a reservoir formed by the Oroville Dam impounding the Feather River, located in Butte County, northern California. The lake is situated 5 miles northeast of the city of Oroville, within the Lake Oroville State Recreation Area, in the western foothills of the Sierra Nevada.

At over 3,500,000 acre feet, it is the second-largest reservoir in California, after Shasta Lake. The lake is fed by the North Fork, Middle Fork, West Branch and South Forks of the Feather River.

The lake has an unmarked 9,000 ft diameter landing area for seaplanes. The lake is a popular nationally renowned bass fishing location, while coho salmon are stocked from the Feather River Fish Hatchery.

Prior to impoundment by the Oroville Dam, the current main basin of Lake Oroville was the location of the confluence of the North Fork Feather River with the Feather River and the now-inundated towns of Bidwell and Land. Completed in 1968, Oroville Dam is an earthen dam and is the tallest dam located in the United States, measuring over 770 feet high and 6,920 feet across. The dam was the largest earth-fill dam in the world until succeeded by Aswan High Dam in Egypt. It was built by the California Department of Water Resources as part of the California State Water Project. The dam houses the Edward Hyatt Powerplant, an underground hydro-electric plant that was completed in 1967. Six generators are used to provide a maximum generating capacity of 819 MVA.

The Hyatt Generating-Pumping Plant source water for the Feather River is released from two discharge tunnels at up to 17,500 cu ft/s during peak demand and "little or no release the remainder of the day". The power plant also routinely draws up to 5,610 cu ft/s of Feather River water for "pumpback" into Lake Oroville. Hyatt releases are stored in the 4.40 miles serpentine river channel (Thermalito Diversion Pool) which extends from the river's source to the Thermalito Diversion Dam.
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