Lake Isabella

For other uses, see Lake Isabella (disambiguation).

Lake Isabella
Satellite photo
Location	Kern County, California
Coordinates	35°40′17.69″N 118°25′38.05″W
Lake type	reservoir
Primary inflows	Upper Kern River, South Fork Kern River
Primary outflows	Lower Kern River
Basin countries	United States
Surface area	11,000 acres (4,500 ha)
Water volume	568,000 acre feet (701,000,000 m3)
Surface elevation	2,500 ft (760 m)

Lake Isabella (also called Isabella Lake, often as a means of distinguishing it from the nearby town of Lake Isabella, California) is a reservoir in Kern County, California created by the earthen Isabella Dam. It was formed in 1953 when the U.S. Army Corps of Engineers dammed the Kern River at the junction of its two forks at Whiskey Flat. At 11,000 acres (45 km²), it is one of the larger reservoirs in California. The area is in the southern end of the Sierra Nevada range and the lake itself is located in low mountains at an elevation of approximately 2,500 feet (760 m) where summer temperatures reach over 100 degrees (°F) but low enough to avoid winter snows on the surrounding ridges. Lake Isabella is located about 40 miles (65 km) northeast of Bakersfield, and is the main water supply for that city. Lake Isabella can be reached by car from Bakersfield via state Highway 178 and from Delano via Highway 155. The former towns of Isabella and Kernville were flooded by the newly created reservoir.

Isabella Dam deficiency

In 2006, Isabella Dam was found to be too unstable to hold a full amount of water and approximately 40% of a full reservoir had to be let out to restabilize the earth works. Presently the U.S. Army Corps of Engineers won't let the water get above 60% of capacity until an estimated 10–15 years of studies and repairs are made. To further add to this problem the Isabella Dam bisects an active fault that could lead to a catastrophic failure if an earthquake occurs along it. This fault was considered inactive when the site was studied in the late 1940s.

The lake is a dividing point. Upper Kern River flows into Lake Isabella, Lower Kern River flows out of the dam and toward Bakersfield. The nearby towns of Lake Isabella and Kernville receive economic benefit from tourism created by the Lake Isabella Recreation Area and the whitewater rafting attraction of the Upper and Lower Kern River. Much of the wilderness surrounding the lake is part of the Sequoia National Forest.

Gallery

• 

  Southern shore of Lake Isabella.

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  The southeast fork, taken from the northern shore; Weldon, California is on the left.

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  Facing west and taken from the eastern shore between the forks.

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  Shore near town of Lake Isabella.

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  Mountain Mesa viewed from the north side of the lake.

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  View of the lake from the hills west of Bodfish.

See also

• List of largest reservoirs of California

External links

• Media related to Lake Isabella at Wikimedia Commons