Lake Oroville


Lake Level
839.12 FEET
Full Pool: 728.1
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Lake Oroville News

Lake Oroville releases and Feather River flows to increase

Date: 3/30/2017 12:57:00 AM

The DWR restarted the Hyatt Powerplant Friday evening with flows around 7,550 cubic feet per second. The resulting erosion there prompted the evacuation of 180,000 people living in Oroville and other communities downstream of the spillway. The spillway has

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Water flowing down Oroville flood control spillway once again

Date: 3/30/2017 12:01:00 AM

The inflows into Lake Oroville range between 11,000 and 26,400 cfs, the DWR said. Total flows to the Feather River are approximately 50,000 cfs. As of 9:30 a.m. the lake was down nearly four feet to 860.37. Foul-mouthed Messi banned for 4 Argentina games

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Real Goods Solar, Inc. (RGSE) shows monthly volitility of 10.58%

The Oak Ridge Observer

Date: 3/29/2017 11:50:00 PM

Inflows to the dam are about 14,000 to 20,000 cubic feet per second, raising Lake Oroville to 862 feet in the last 24 hours. The Oroville Spillway has been active since Friday at 11 a.m. and the elevation of Lake Oroville has slowly decreased

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Damaged main spillway of Oroville Dam to reopen next week

Date: 3/29/2017 11:31:00 PM

The inflows into Lake Oroville range between 11,000 and 26,400 cfs, the DWR said. The lake water then rose and began pouring over an emergency spillway that had never been used and which led to a bare hillside. As a result, the lake level continues to rise

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Oroville Dam spillway to be tried Friday

Date: 3/29/2017 11:29:00 PM

The higher flows will be maintained about a week, according to a DWR press release, to make room in Lake Oroville for runoff from the storm expected this weekend and snowmelt. The agency, in a news release Thursday, said risk to workers and nearby

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9:31:02 AM
11/23/2017 - Thanksgiving
12/25/2017 - Christmas
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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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