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Shehan Pond Dam
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Shehan Pond Dam Share
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Clarksville, New Hampshire
Fire Protection / Stock / Small Fish Pond
State owned
Built in 1960

Shehan Pond Dam is built on the Roby Brook River and is located in Clarksville, New Hampshire. It was built in 1960 for the purpose of fire protection / stock / small fish pond.

The state-owned dam is owned by the NH Fish and Game Department.

Location
Shehan Pond Dam
Clarksville, New Hampshire, U.S.
Dam type
Other
Dam type
Fire protection / Stock / Small fish pond
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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NH Fish and Game Department
Owner
State

The state-owned dam is owned by the NH Fish and Game Department.

Construction Share
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1960
Completed
Roby Brook River
River built on
Shehan Pond Dam was built in 1960.
Metrics Share
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Summary
Dam length 330 feet
Dam height 25 feet
Max storage 1,000 acre feet
Normal storage 500 acre feet
Surface area 50 acres
Drainage area 4 square miles
330 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.

25 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.

1,000 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.

500 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.

50 acres
Surface area

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

4 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.

6/19/2012
Most recent inspection date

Inspections are every 6 years.

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Latitude 45
Longitude -71
NID ID (National ID) NH03560

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