geo.wikisort.org - Reservoir

Don Pedro Reservoir, also known as Lake Don Pedro, is a reservoir formed by the construction of the New Don Pedro Dam across the Tuolumne River in Tuolumne County, California, United States.[1]

Don Pedro Reservoir
Reservoir and Sierra Nevada foothills
Don Pedro Reservoir Show map of California Don Pedro Reservoir Show map of the United States
Location	Tuolumne County, California
Coordinates	37.7415°N 120.3735°W / 37.7415; -120.3735
Type	Reservoir
Primary inflows	Tuolumne River
Primary outflows	Tuolumne River
Catchment area	1,500 sq mi (3,900 km2)
Basin countries	United States
Surface area	13,000 acres (5,300 ha)
Water volume	2,030,000 acre⋅ft (2.50 km3)
Shore length1	160 mi (260 km)
Surface elevation	245 m (804 ft)
Islands	Laughlin Ridge
References	U.S. Geological Survey Geographic Names Information System: Don Pedro Reservoir
1 Shore length is not a well-defined measure.

The California Office of Environmental Health Hazard Assessment has issued a safety advisory for any fish caught in Don Pedro Reservoir due to elevated levels of mercury and PCBs.[2]

Geography

The reservoir is located in the foothills of the Sierra Nevada. Communities located nearby are Moccasin and La Grange. It is the sixth-largest reservoir in California.

Also referenced as Don Pedro Lake when the name is qualified, the first projects in 1923 are generally referred to as the Old Don Pedro Dam and reservoir, and the 1971 upgrades are the New Don Pedro Dam and reservoir.[3] Don Pedro Reservoir takes its name from Don Pedros Bar.[4] Pierre ("Don Pedro") Sainsevain was one of the first prospectors after the discovery of gold in 1848 that began the California Gold Rush.

When full, the reservoir's shoreline is approximately 160 mi (260 km).[5] The reservoir submerges some 26 mi (42 km) of Tuolumne River bed, and has a surface area of about 13,000 acres (5,300 ha). The 2,030,000 acre⋅ft (2.50 km³) stored here comes from a watershed of over 1,500 sq mi (3,900 km²), and is used by the Modesto Irrigation District (MID) and the Turlock Irrigation District (TID) for the irrigation of several hundred square miles of San Joaquin Valley farm land.

Some of the water is treated by the MID and used as drinking water in Modesto. The two irrigation districts and the BLM control the land 15 feet (4.6 m) above the high lake level.

Recreation

The Don Pedro Recreation Area is operated in and around the lake by the Don Pedro Lake Recreation Agency. There are drive-in and boat-in campgrounds, houseboat areas, fishing, water skiing, and mountain biking and hiking trails.[6][7]

There are three public boat ramps on the shoreline, in the Blue Oaks Area, Moccasin Point Area, and Fleming Meadows Area.[6][8]

Hetch Hetchy project

While Don Pedro Reservoir is not part of the Hetch Hetchy Aqueduct, the project's tunnels cross under the upper end of the reservoir. The reservoir could easily be tied into the Hetch Hetchy Project in the future, and the efforts of the Restore Hetch Hetchy group to drain the reservoir in the Hetch Hetchy Valley depend largely on that possibility. The San Francisco Public Utilities Commission (SFPUC), of which Hetch Hetchy Water and Power is a division, provided about 45% of the funds for construction of the 1971 New Don Pedro Dam and so has the right to store 570,000 acre-feet (700,000,000 m³) of water in the reservoir. Each year, San Francisco takes about 230,000 acre-feet (280,000,000 m³). The rights of the MID and the TID are senior to those of SFPUC, however, so in dry years MID and TID can draw down the reservoir to meet their own needs before providing water to San Francisco's Hetch Hetchy Water and Power.

See also

• List of dams and reservoirs in California
• List of largest reservoirs of California
• Tuolumne River topics

References

External links

• U.S. Geological Survey Geographic Names Information System: Don Pedro Reservoir
• Official Don Pedro Lake Recreation Agency website
• Don Pedro Lake Recreation Agency: Don Pedro Recreation Area access + recreation facilities Map
• Turlock Irrigation District
• Modesto Irrigation District
• Virtualguidebooks.com: "The Highway 49/120 Bridge over Don Pedro Reservoir"

На других языках

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[de] New-Don-Pedro-Talsperre

Die New-Don-Pedro-Talsperre (englisch Lake Don Pedro, Don Pedro Lake, Don Pedro Reservoir bzw. "Don Pedro Dam") am Tuolumne River ist die fünftgrößte Talsperre in Kalifornien. In der Nähe des Stausees liegt die Stadt Moccasin.

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- [en] Don Pedro Reservoir

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[fr] Lac Don Pedro

Le lac Don Pedro – Don Pedro Lake ou Don Pedro Reservoir en anglais – est un lac de barrage dans le comté de Tuolumne, en Californie, dans le sud-ouest des États-Unis. Situé sur le cours de la Tuolumne, il est franchi par le James E. Roberts Bridge et le Jacksonville Road Bridge.

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