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Canaan Street Lake Dam
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Canaan Street Lake Dam Share
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Canaan, New Hampshire
Recreation
Privately owned
Built in 1917

Canaan Street Lake Dam is an earth dam built on the Canaan Street Brook River and is located in Canaan, New Hampshire. It was built in 1917 and modified in 1988 for the purpose of recreation.

The dam is privately owned by Cardigan Mountain School. It is also known as Crystal Lake; Harts Pond.

Location
Canaan Street Lake Dam
Canaan, New Hampshire, U.S.
Dam type
Earth
Dam type
Recreation
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Cardigan Mountain School
Owner
Private

Canaan Street Lake Dam is privately owned by Cardigan Mountain School.

Construction Share
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1917
Completed
1988
Modified
Canaan Street Brook River
River built on
Canaan Street Lake Dam was built in 1917 and modified in 1988.
Metrics Share
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Summary
Dam length 250 feet
Dam height 14 feet
Max discharge 668 cubic feet per second
Max storage 1,863 acre feet
Normal storage 532 acre feet
Surface area 291 acres
Drainage area 2 square miles
250 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.

14 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.

668 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.

1,863 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.

532 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.

291 acres
Surface area

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

2 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.

10/27/2014
Most recent inspection date

Inspections are every 6 years.

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Also known as Crystal Lake; Harts Pond
Latitude 43
Longitude -72
NID ID (National ID) NH00922

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