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Hatfields Dam
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Hatfields Dam Share
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Rochester, New Hampshire
Hydroelectric
Local government owned
Built in 1937

Hatfields Dam is built on the Cocheco River and is located in Rochester, New Hampshire. It was built in 1937 for the purpose of hydroelectric.

The dam is owned by the local government.

Location
Hatfields Dam
Rochester, New Hampshire, U.S.
Dam type
Other
Dam type
Hydroelectric
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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City of Rochester
Owner
Local government

Hatfields Dam is owned by the local government.

Construction Share
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1937
Completed
Cocheco River
River built on
Hatfields Dam was built in 1937.
Metrics Share
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Summary
Dam length 106 feet
Dam height 20 feet
Max discharge 7,397 cubic feet per second
Max storage 6 acre feet
Normal storage 6 acre feet
Surface area 1 acres
Drainage area 64 square miles
106 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.

20 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.

7,397 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.

6 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.

6 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.

1 acres
Surface area

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

64 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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Significant
Downstream potential hazard

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be located in areas with population and significant infrastructure.

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.

8/8/2017
Most recent inspection date

Inspections are every 1 ear.

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Latitude 43
Longitude -70
NID ID (National ID) NH83018

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