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Rocky Pen Run #4A Dam
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Rocky Pen Run #4A Dam Share
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Overview Share
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Virginia
Local government owned

Rocky Pen Run #4A Dam is an earth dam built on the Rocky Pen Run River and is located in Virginia. It was built .

The dam is owned by the local government.

Location
Rocky Pen Run #4A Dam
Virginia, U.S.
Dam type
Earth
Dam type
Other
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Stafford County Board of Supervisors
Owner
Local government

Rocky Pen Run #4A Dam is owned by the local government.

Metrics Share
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Summary
Dam length 220 feet
Dam height 27 feet
Structural height 27 feet
Hydraulic height 27 feet
Max storage 128 acre feet
Normal storage 35 acre feet
Surface area 7 acres
220 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.

27 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.

27 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.

27 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.

128 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.

35 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.

7 acres
Surface area

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

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.

Has 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.

About Share
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Latitude 38
Longitude -77
NID ID (National ID) VA179013

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