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Lower Big Creek Dam
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Lower Big Creek Dam Share
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Cowdrey, Colorado
Irrigation
Privately owned
Built in 1978

Lower Big Creek Dam is an earth dam built on the South Trib Big CR River and is located in Cowdrey, Colorado. It was built in 1978 for the purpose of irrigation.

The dam is privately owned by Silver Spur Land & Cattle. It is also known as Big Creek Lake.

Location
Lower Big Creek Dam
Cowdrey, Colorado, U.S.
Dam type
Earth
Dam type
Irrigation
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Silver Spur Land & Cattle
Owner
Private

Lower Big Creek Dam is privately owned by Silver Spur Land & Cattle.

Construction Share
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1978
Completed
South Trib Big CR River
River built on
Lower Big Creek Dam was built in 1978.
Metrics Share
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Summary
Dam length 550 feet
Dam height 10 feet
Structural height 11 feet
Hydraulic height 10 feet
Max discharge 3,690 cubic feet per second
Max storage 3,834 acre feet
Normal storage 1,434 acre feet
Surface area 600 acres
Drainage area 11 square miles
550 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.

10 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.

11 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.

10 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.

3,690 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.

3,834 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.

1,434 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.

600 acres
Surface area

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

11 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.

10/26/2016
Most recent inspection date

Inspections are every 6 years.

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Also known as Big Creek Lake
Distance to nearest town (miles) 15
Latitude 40
Longitude -106
NID ID (National ID) CO02077

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