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Dewey Dam
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Dewey Dam Share
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Overview Share
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Reserve, Montana
Fire Protection / Stock / Small Fish Pond
Privately owned
Built in 1948

Dewey Dam is an earth dam built on the Diffused Surface Water River and is located in Reserve, Montana. It was built in 1948 for the purpose of fire protection / stock / small fish pond.

The dam is privately owned by Alice V. Hjort.

Location
Dewey Dam
Reserve, Montana, U.S.
Dam type
Earth
Dam type
Fire protection / Stock / Small fish pond
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Alice V. Hjort
Owner
Private

Dewey Dam is privately owned by Alice V. Hjort.

Construction Share
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1948
Completed
USDA NRCS
Dam designer
Diffused Surface Water River
River built on
Dewey Dam was built in 1948.
Metrics Share
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Summary
Dam length 200 feet
Dam height 25 feet
Hydraulic height 25 feet
Max storage 82 acre feet
Normal storage 49 acre feet
Drainage area 4 square miles
200 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.

25 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.

25 feet
Hydraulic height

Hydraulic height of the dam is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed.

82 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.

49 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.

4 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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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.

About Share
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Latitude 48
Longitude -104
NID ID (National ID) MT02727

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