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Allen Dam
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Allen Dam Share
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Overview Share
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3.7, California
Water Supply
Privately owned
Built in 1955

Allen Dam is an earth dam built on the TR Kelsey CR River and is located in 3.7, California. It was built in 1955 for the purpose of water supply.

The dam is privately owned by Private Entity.

Allen Dam
3.7, California, U.S.
Dam type
Dam type
Water supply
Foundation type
Core type
Ownership Share
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Private Entity

Allen Dam is privately owned by Private Entity.

Construction Share
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Dam designer
TR Kelsey CR River
River built on
Allen Dam was built in 1955.
Metrics Share
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Dam length 250 feet
Dam height 33 feet
Hydraulic height 24 feet
Normal storage 85 acre feet
Surface area 11 acres
Drainage area 1 square miles
250 feet
Dam length

Length of the dam is defined as the length along the top of the dam. This also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included.

33 feet
Dam height

Height of the dam is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed.

24 feet
Hydraulic height

Hydraulic height of the dam is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed.

85 acre feet
Normal storage

Normal storage is defined as the total storage space in a reservoir below the normal retention level, including dead and inactive storage and excluding any flood control or surcharge storage. For normally dry flood control dams, the normal storage will be a zero value.

11 acres
Surface area

Surface area, in acres, of the impoundment at its normal retention level.

1 square miles
Drainage area

Drainage area of the dam, in square miles, which is defined as the area that drains to a particular point (in this case, the dam) on a river or stream.

Safety Share
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Downstream potential hazard

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be located in areas with population and significant infrastructure.

No emergency action plan
Emergency action plan

An emergency action plan is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.

Most recent inspection date

Inspections are every 1 ear.

About Share
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Latitude 38
Longitude -122
NID ID (National ID) CA00569

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