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Lake Sonoma Dam
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Overview Share
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Ringwood Boro, New Jersey
Recreation
State owned
Built in 1948

Lake Sonoma Dam is an earth dam built on the Wanaque River and is located in Ringwood Boro, New Jersey. It was built in 1948 for the purpose of recreation.

The state-owned dam is owned by the Division of Parks and Forestry.

Location
Lake Sonoma Dam
Ringwood Boro, New Jersey, U.S.
Dam type
Earth
Dam type
Recreation
Purpose
Unknown
Foundation type
Unknown
Core type
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Division of Parks and Forestry
Owner
State

The state-owned dam is owned by the Division of Parks and Forestry.

Construction Share
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1948
Completed
Wanaque River
River built on
Lake Sonoma Dam was built in 1948.
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Summary
Dam length 215 feet
Dam height 24 feet
Max discharge 340 cubic feet per second
Max storage 120 acre feet
Normal storage 74 acre feet
Surface area 9 acres
Drainage area 0 square miles
215 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.

24 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.

340 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.

120 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.

74 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.

9 acres
Surface area

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

0 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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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.

4/14/2005
Most recent inspection date

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Latitude 41
Longitude -74
NID ID (National ID) NJ00193

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