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Haskins Number 1 Dam
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Haskins Number 1 Dam Share
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Overview Share
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Fort Pierre, South Dakota
Water Supply
Privately owned
Built in 1935

Haskins Number 1 Dam is an earth dam built on the Branch Willow Creek River and is located in Fort Pierre, South Dakota. It was built in 1935 for the purpose of water supply.

The dam is privately owned by W.T. Mcilravy.

Location
Haskins Number 1 Dam
Fort Pierre, South Dakota, U.S.
Dam type
Earth
Dam type
Water supply
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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W.T. Mcilravy
Owner
Private

Haskins Number 1 Dam is privately owned by W.T. Mcilravy.

Construction Share
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1935
Completed
USDA NRCS
Dam designer
Branch Willow Creek River
River built on
Haskins Number 1 Dam was built in 1935.
Metrics Share
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Summary
Dam length 870 feet
Dam height 17 feet
Structural height 17 feet
Hydraulic height 17 feet
Max discharge 1,560 cubic feet per second
Max storage 120 acre feet
Normal storage 68 acre feet
870 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.

17 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.

17 feet
Structural height

Structural height of the dam is defined as the vertical distance from the lowest point of the excavated foundation to the top of the dam. Top of dam refers to the parapet wall and not the crest.

17 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.

1,560 cubic feet per second
Max discharge

Number of cubic feet per second the spillway is capable of discharging when the reservoir is at its maximum designed water surface elevation.

120 acre feet
Max storage

Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.

68 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.

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Significant
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.

Not required
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.

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Latitude 44
Longitude -100
NID ID (National ID) SD00254

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