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Evans Dam
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Evans Dam Share
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Fairmont, Missouri
Grade Stabilization
Privately owned
Built in 1994

Evans Dam is an earth dam built on the Tr-Little Wyaconda River and is located in Fairmont, Missouri. It was built in 1994 for the purpose of grade stabilization.

The dam is privately owned by Gilford Evans.

Location
Evans Dam
Fairmont, Missouri, U.S.
Dam type
Earth
Dam type
Grade stabilization
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Gilford Evans
Owner
Private

Evans Dam is privately owned by Gilford Evans.

Construction Share
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1994
Completed
Tr-Little Wyaconda River
River built on
Evans Dam was built in 1994.
Metrics Share
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Summary
Dam length 198 feet
Dam height 32 feet
Structural height 34 feet
Hydraulic height 31 feet
Max discharge 29 cubic feet per second
Max storage 28 acre feet
Normal storage 16 acre feet
Surface area 8 acres
Drainage area 378 square miles
198 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.

32 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.

34 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.

31 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.

29 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.

28 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.

16 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.

8 acres
Surface area

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

378 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.

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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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Latitude 40
Longitude -91
NID ID (National ID) MO50620

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