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Non Potable Reservoir Dam 3
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Non Potable Reservoir Dam 3 Share Share

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Colorado Springs, Colorado
Irrigation
Federal ownership
Built in 1961

Non Potable Reservoir Dam 3 is an earth dam built on the Tr-Monument CR - Offstream River and is located in Colorado Springs, Colorado. It was built in 1961 and modified in 2006 for the purpose of irrigation.

The dam is under federal ownership and is owned by the Usaf Academy. It is also known as Non Potable Reservoir 3. The dam used to be known as Cononame 3.

Location
Non Potable Reservoir Dam 3
Colorado Springs, Colorado, U.S.
Dam type
Earth
Dam type
Irrigation
Purpose
Unknown
Foundation type
Unknown
Core type
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Map Share Share
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Ownership Share Share
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Usaf Academy
Owner
Federal

Non Potable Reservoir Dam 3 is under federal ownership and is owned by the Usaf Academy.

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Construction Share Share
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1961
Completed
2006
Modified
Skidmore, Owings, and Merrill; S.A. Miro
Dam designer
Tr-Monument CR - Offstream River
River built on
Non Potable Reservoir Dam 3 was built in 1961 and modified in 2006.
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Metrics Share Share
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Summary
Dam length 890 feet
Dam height 50 feet
Hydraulic height 45 feet
Max discharge 1,450 cubic feet per second
Max storage 70 acre feet
Normal storage 65 acre feet
Surface area 4 acres
Drainage area 0 square miles
890 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.

50 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.

45 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.

1,450 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.

70 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.

65 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 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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Safety Share Share
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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.

9/28/2016
Most recent inspection date

Inspections are every 1 ear.

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About Share Share
Also known as Non Potable Reservoir 3
Former name Cononame 3
Distance to nearest town (miles) 9
Latitude 39
Longitude -104
NID ID (National ID) CO02441
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