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Piedmont Dam
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Piedmont Dam Share
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Overview Share
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Freeport, Ohio
Federal ownership
Built in 1937

Piedmont Dam is an earth dam built on the Stillwater Creek River and is located in Freeport, Ohio. It was built in 1937 .

The dam is under federal ownership and is owned by the U.S. Army Corps of Engineers. It is also known as Piedmont Lake.

Location
Piedmont Dam
Freeport, Ohio, U.S.
Dam type
Earth
Dam type
Other
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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U.S. Army Corps of Engineers
Owner
Federal

Piedmont Dam is under federal ownership and is owned by the U.S. Army Corps of Engineers.

Construction Share
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1937
Completed
U.S. Army Corps of Engineers
Dam designer
Stillwater Creek River
River built on
Piedmont Dam was built in 1937.
Metrics Share
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Summary
Dam length 1,750 feet
Structural height 56 feet
Hydraulic height 45 feet
Max discharge 15,200 cubic feet per second
Max storage 66,700 acre feet
Normal storage 34,500 acre feet
Surface area 2,312 acres
Drainage area 86 square miles
1,750 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.

56 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.

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.

15,200 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.

66,700 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.

34,500 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.

2,312 acres
Surface area

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

86 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.

4/4/2014
Most recent inspection date

Inspections are every 5 years.

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Also known as Piedmont Lake
Distance to nearest town (miles) 4
Latitude 40
Longitude -81
NID ID (National ID) OH00011

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