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Fourche Creek Watershed Dam 12
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Fourche Creek Watershed Dam 12 Share
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Pocahontas Ark, Missouri
Flood Control
Local government owned
Built in 1978

Fourche Creek Watershed Dam 12 is an earth dam built on the Tr-Fourche Creek River and is located in Pocahontas Ark, Missouri. It was built in 1978 for the purpose of flood control.

The dam is owned by the local government. It is also known as Fourche Creek Watershed #12 Dam.

Location
Fourche Creek Watershed Dam 12
Pocahontas Ark, Missouri, U.S.
Dam type
Earth
Dam type
Flood control
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Fourche CR WTRSHD Subdst
Owner
Local government

Fourche Creek Watershed Dam 12 is owned by the local government.

Construction Share
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1978
Completed
USDA NRCS
Dam designer
Tr-Fourche Creek River
River built on
Fourche Creek Watershed Dam 12 was built in 1978.
Metrics Share
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Summary
Dam length 830 feet
Dam height 34 feet
Structural height 36 feet
Hydraulic height 34 feet
Max discharge 660 cubic feet per second
Max storage 446 acre feet
Normal storage 56 acre feet
Surface area 4 acres
Drainage area 128 square miles
830 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.

34 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.

36 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.

34 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.

660 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.

446 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.

56 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.

4 acres
Surface area

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

128 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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Low
Downstream potential hazard

Dams assigned the low hazard potential classification are those where failure or misoperation results in no probable loss of human life and low economic and/or environ-mental losses. Losses are principally limited to the owner’s property.

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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Also known as Fourche Creek Watershed #12 Dam
Former name 0
Latitude 36
Longitude -90
NID ID (National ID) MO31650

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