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Pilot Butte Dam
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Pilot Butte Dam Share
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Riverton, Wyoming
Irrigation
Federal ownership
Built in 1925

Pilot Butte Dam is an earth dam built on the Wyoming Canal River and is located in Riverton, Wyoming. It was built in 1925 for the purpose of irrigation.

The dam is under federal ownership and is owned by the Reclamation.

Location
Pilot Butte Dam
Riverton, Wyoming, U.S.
Dam type
Earth
Dam type
Irrigation
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Reclamation
Owner
Federal

Pilot Butte Dam is under federal ownership and is owned by the Reclamation.

Construction Share
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1925
Completed
Arnold Co.
Dam designer
Wyoming Canal River
River built on
Pilot Butte Dam was built in 1925.
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Summary
Dam length 1,300 feet
Dam height 64 feet
Structural height 64 feet
Hydraulic height 55 feet
Max discharge 500 cubic feet per second
Max storage 36,900 acre feet
Normal storage 33,700 acre feet
Surface area 900 acres
Drainage area 9 square miles
1,300 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.

64 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.

64 feet
Structural height

Structural height of the dam is defined as the vertical distance from the lowest point of the excavated foundation to the top of the dam. Top of dam refers to the parapet wall and not the crest.

55 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.

500 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.

36,900 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.

33,700 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.

900 acres
Surface area

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

9 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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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.

7/27/2017
Most recent inspection date

Inspections are every 1 ear.

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Distance to nearest town (miles) 25
Latitude 43
Longitude -108
NID ID (National ID) WY01381

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