Lyons Dam | |
---|---|
Country | United States |
Location | Tuolumne County, California |
Status | Operational |
Opening date | 1916 |
Lyons Dam (National ID # CA00387) is a dam in Tuolumne County, California.
The concrete single-arch dam was constructed in 1930 by the Pacific Gas and Electric Company, with a height of 132 feet, and a length of 535 feet at its crest. [1] It impounds the South Fork Stanislaus River for the municipal water supply of the Twain Harte, California area. Owned and operated by Pacific Gas and Electric Company, the largest private owner of hydroelectric facilities in the United States, it is one of the company's 174 dams.
The reservoir it creates, Lyons Reservoir, has a normal water surface of 184 acres (74 ha), and a maximum capacity of 6,400 acre-feet (7,900,000 m3). [2] Recreation includes fishing. The site is surrounded by the Stanislaus National Forest. In 2012, about 625 acres (253 ha) of adjacent land known as the Rushing Meadows parcel was transferred from PG&E's ownership to the National Forest Service, as part of the utility's bankruptcy settlement. [3]
The Salt River Project (SRP) encompasses two separate entities: the Salt River Project Agricultural Improvement and Power District, an agency of the state of Arizona that serves as an electrical utility for the Phoenix metropolitan area, and the Salt River Valley Water Users' Association, a utility cooperative that serves as the primary water provider for much of central Arizona. It is one of the primary public utility companies in Arizona.
New Melones Dam is an earth and rock filled embankment dam on the Stanislaus River, about 5 miles (8.0 km) west of Jamestown, California, United States, on the border of Calaveras County and Tuolumne County. The water impounded by the 625-foot-tall (191 m) dam forms New Melones Lake, California's fourth-largest reservoir, in the foothills of the Sierra Nevada east of the San Joaquin Valley. The dam serves mainly for irrigation water supply, and also provides hydropower generation, flood control, and recreation benefits.
New Bullards Bar Dam is a variable radius concrete arch dam constructed in the early 1960s in California on the North Yuba River. Located near the town of Dobbins in Yuba County, the dam forms the New Bullards Bar Reservoir, which can hold about 969,600 acre⋅ft (1.1960×109 m3) of water. The dam serves for irrigation, drinking water and hydroelectric power generation.
Castaic Dam is an embankment dam in northwestern Los Angeles County, California, in the unincorporated area of Castaic. Although located on Castaic Creek, a major tributary of the Santa Clara River, Castaic Creek provides little of its water. The lake is the terminus of the West Branch of the California Aqueduct, part of the State Water Project. The dam was built by the California Department of Water Resources and construction was completed in 1973. The lake has a capacity of 325,000 acre-feet (401,000,000 m3) and stores drinking water for the western portion of the Greater Los Angeles Area.
The Stanislaus River is a tributary of the San Joaquin River in north-central California in the United States. The main stem of the river is 96 miles (154 km) long, and measured to its furthest headwaters it is about 150 miles (240 km) long. Originating as three forks in the high Sierra Nevada, the river flows generally southwest through the agricultural San Joaquin Valley to join the San Joaquin south of Manteca, draining parts of five California counties. The Stanislaus is known for its swift rapids and scenic canyons in the upper reaches, and is heavily used for irrigation, hydroelectricity and domestic water supply.
Courtright Reservoir is a reservoir in Fresno County, California. The reservoir is at an elevation of 8,170 feet in the Sierra National Forest, in the Sierra Nevada Mountain Range, bordering the John Muir Wilderness and the Dinkey Lakes Wilderness.
Lake Pillsbury is a lake in the Mendocino National Forest of Lake County, California, created from the Eel River and Hull Mountain watershed by Scott Dam. Elevation is 1,818 ft (554 m) with 65 mi (105 km) of shoreline and covering 2,003 acres (811 ha). Activities in the Lake Pillsbury Recreation Area include powerboating, fishing, swimming, sailing, picnicking, hiking and hang gliding. There are two main access roads to the lake. At the north end of the lake is a small gravel airstrip. About 400 vacation cabins including National Forest Recreational Residences ring the lake.
Lake McCloud is a reservoir on the McCloud River in Northern California. The lake forms behind an earthen dam finished in 1965 by the Pacific Gas and Electric Company to control water flows and for generating hydro-electric power. McCloud Dam is 235 feet high, 630 feet long at its crest, and impounds a maximum capacity of 35,200 acre-feet.
Pit No. 6 Dam or Pit 6 Dam is a hydroelectric dam on the Pit River in northern California. Its power station generates up to 79 MW.
Merritt Dam is a dam in Cherry County, Nebraska, southwest of Valentine, in the north-central part of the state. The 126-foot (38 m) earthen dam impounds the Snake River as it flows along the southern edge of the Samuel R. McKelvie National Forest in the Sandhills. It created Merritt Reservoir in 1964 as a project of the United States Bureau of Reclamation. The reservoir holds almost 75,000 acre⋅ft (93,000,000 m3), with about 44 miles (71 km) of sandy shoreline and 3,000 surface acres (1,200 ha) of water.
Lake Spaulding Dam is a dam in Nevada County, California.
Wishon Dam is a dam in Fresno County, California in the Sierra National Forest, in the Sierra Nevada Mountain Range. It impounds the North Fork Kings River to form Wishon Reservoir.
Iron Canyon Dam is a dam in Shasta County, California.
Soda Dam, also known as Alexander Dam, is a dam in Caribou County, Idaho, directly west of the town of Soda Springs.
Beardsley Dam is a dam on the Middle Fork Stanislaus River in Tuolumne County, California. The site is surrounded by the Stanislaus National Forest.
Bear River Dam is a dam in Amador County, California, due east of Sacramento.
Strawberry Dam, also known as Main Strawberry Dam, is a dam in Tuolumne County, California.
Donnells Dam is a concrete arch dam located on the Middle Fork of the Stanislaus River in Tuolumne County, California. The water impounded by the 291-foot (89 m) high dam forms Donnell Lake in Stanislaus National Forest. The dam and reservoir are co-owned by the Oakdale Irrigation District and South San Joaquin Irrigation District, and the dam is one of three in the Tri-Dam Project. The other two dams in the project are Beardsley Dam and Tulloch Dam.
The Upper North Fork Feather River Project is a hydroelectric scheme in the Sierra Nevada of California, within Lassen and Plumas Counties. The project consists of three dams, five power plants, and multiple conduits and tunnels in the headwaters of the North Fork Feather River, a major tributary of the Feather—Sacramento River systems. The total installed capacity is 362.3 megawatts (MW), producing an annual average of 1,171.9 gigawatt hours (GWh). The project is also contracted for the delivery of irrigation water between March 31 and October 31 of each year. The project is owned and operated by Pacific Gas and Electric Company.
Relief Dam is a rockfill dam on Summit Creek, a tributary of the Middle Fork Stanislaus River, in Tuolumne County, California. The dam is part of the Spring Gap-Stanislaus Hydroelectric Project, and is owned and operated by Pacific Gas and Electric (PG&E).
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