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Mills Dam
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Overview Share
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LE Grand, Iowa
Fire Protection / Stock / Small Fish Pond
Privately owned
Built in 1968

Mills Dam is an earth dam built on the TR- Rock Creek River and is located in LE Grand, Iowa. It was built in 1968 for the purpose of fire protection / stock / small fish pond.

The dam is privately owned by Max Mills. It is also known as Max M. Mills.

Mills Dam
LE Grand, Iowa, U.S.
Dam type
Dam type
Fire protection / Stock / Small fish pond
Foundation type
Core type
Ownership Share
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Max Mills

Mills Dam is privately owned by Max Mills.

Construction Share
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Dam designer
TR- Rock Creek River
River built on
Mills Dam was built in 1968.
Metrics Share
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Dam length 371 feet
Dam height 22 feet
Max storage 50 acre feet
Normal storage 19 acre feet
Surface area 3 acres
Drainage area 0 square miles
371 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.

22 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.

50 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.

19 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.

3 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

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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Also known as Max M. Mills
Latitude 42
Longitude -92
NID ID (National ID) IA02893

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