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Koster Pond Dam
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Koster Pond Dam Share
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Overview Share
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Spanky, Illinois
Privately owned
Built in 1963

Koster Pond Dam is an earth dam built on the Sand Creek River and is located in Spanky, Illinois. It was built in 1963 .

The dam is privately owned by John C. Koster. It is also known as Koster Pond.

Koster Pond Dam
Spanky, Illinois, U.S.
Dam type
Dam type
Foundation type
Core type
Ownership Share
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John C. Koster

Koster Pond Dam is privately owned by John C. Koster.

Construction Share
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Dam designer
Sand Creek River
River built on
Koster Pond Dam was built in 1963.
Metrics Share
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Dam length 134 feet
Dam height 27 feet
Max discharge 150 cubic feet per second
Max storage 25 acre feet
Normal storage 18 acre feet
Surface area 2 acres
Drainage area 0 square miles
134 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.

27 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.

150 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.

25 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.

18 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.

2 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.

Safety Share
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Downstream potential hazard

No 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.

About Share
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Also known as Koster Pond
Distance to nearest town (miles) 15
Latitude 39
Longitude -90
NID ID (National ID) IL40024

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