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Lower Mountain Lake Dam
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Lower Mountain Lake Dam Share
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Lawrence, New Jersey
Recreation
Local government owned

Lower Mountain Lake Dam is built on the Stony Brook-Tr River and is located in Lawrence, New Jersey. It was built for the purpose of recreation.

The dam is owned by the local government.

Location
Lower Mountain Lake Dam
Lawrence, New Jersey, U.S.
Dam type
Other
Dam type
Recreation
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Princeton
Owner
Local government

Lower Mountain Lake Dam is owned by the local government.

Metrics Share
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Summary
Dam length 270 feet
Dam height 13 feet
Max discharge 1,000 cubic feet per second
Max storage 25 acre feet
Normal storage 15 acre feet
Surface area 6 acres
Drainage area 1 square miles
270 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.

13 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 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.

25 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.

15 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.

6 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.

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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.

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.

12/21/2017
Most recent inspection date

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Latitude 40
Longitude -74
NID ID (National ID) NJ00747

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