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Assunpink #20 Dam
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Assunpink #20 Dam Share
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Overview Share
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Quaker Bridge, New Jersey
Local government owned
Built in 1979

Assunpink #20 Dam is built on the Assunpink Creek River and is located in Quaker Bridge, New Jersey. It was built in 1979 .

The dam is owned by the local government. It is also known as Lake Mercer.

Location
Assunpink #20 Dam
Quaker Bridge, New Jersey, U.S.
Dam type
Other
Dam type
Other
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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County of Mercer Park Commission
Owner
Local government

Assunpink #20 Dam is owned by the local government.

Construction Share
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1979
Completed
USDA NRCS
Dam designer
Assunpink Creek River
River built on
Assunpink #20 Dam was built in 1979.
Metrics Share
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Summary
Dam length 4,070 feet
Dam height 26 feet
Max discharge 29,450 cubic feet per second
Max storage 14,730 acre feet
Normal storage 2,700 acre feet
Surface area 275 acres
Drainage area 30 square miles
4,070 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.

26 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.

29,450 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.

14,730 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.

2,700 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.

275 acres
Surface area

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

30 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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High
Downstream potential hazard

Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.

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.

4/13/2018
Most recent inspection date

About Share
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Also known as Lake Mercer
Former name 0
Latitude 40
Longitude -74
NID ID (National ID) NJ00552

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