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Flat Run Lake Dam
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Flat Run Lake Dam Share
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Overview Share
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Davis, West Virginia
Public utility owned
Built in 1965

Flat Run Lake Dam is an earth dam built on the Flat Run River and is located in Davis, West Virginia. It was built in 1965 .

The dam is owned by the public utility, Allegheny Power. It is also known as Mallow Lake/North Lake.

Location
Flat Run Lake Dam
Davis, West Virginia, U.S.
Dam type
Earth
Dam type
Other
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Allegheny Power
Owner
Public utility

Flat Run Lake Dam is owned by the public utility, Allegheny Power.

Construction Share
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1965
Completed
Flat Run River
River built on
Flat Run Lake Dam was built in 1965.
Metrics Share
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Summary
Dam length 400 feet
Dam height 21 feet
Hydraulic height 16 feet
Max storage 143 acre feet
Normal storage 66 acre feet
Surface area 11 acres
Drainage area 1 square miles
400 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.

21 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.

16 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.

143 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.

66 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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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.

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.

10/14/2015
Most recent inspection date

Inspections are every 5 years.

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Also known as Mallow Lake/North Lake
Distance to nearest town (miles) 4
Latitude 39
Longitude -79
NID ID (National ID) WV09310

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