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Mahoning Creek Dam
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Mahoning Creek Dam Share Share

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Putneyville, Pennsylvania
Federal ownership
Built in 1941

Mahoning Creek Dam is a gravity dam built on the Mahoning Creek River and is located in Putneyville, Pennsylvania. It was built in 1941 .

The dam is under federal ownership and is owned by the Celrp. It is also known as Mahoning Creek Lake.

Location
Mahoning Creek Dam
Putneyville, Pennsylvania, U.S.
Dam type
Gravity
Dam type
Other
Purpose
Rock
Foundation type
Concreate
Core type
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Map Share Share
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Ownership Share Share
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Celrp
Owner
Federal

Mahoning Creek Dam is under federal ownership and is owned by the Celrp.

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Construction Share Share
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1941
Completed
Celrp
Dam designer
Mahoning Creek River
River built on
Mahoning Creek Dam was built in 1941.
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Summary
Dam length 926 feet
Structural height 162 feet
Hydraulic height 162 feet
Max discharge 103,000 cubic feet per second
Max storage 94,000 acre feet
Normal storage 9,550 acre feet
Surface area 280 acres
Drainage area 340 square miles
926 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.

162 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.

162 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.

103,000 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.

94,000 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.

9,550 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.

280 acres
Surface area

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

340 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.

9/13/2017
Most recent inspection date

Inspections are every 5 years.

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About Share Share
Also known as Mahoning Creek Lake
Distance to nearest town (miles) 5
Latitude 40
Longitude -79
NID ID (National ID) PA00107
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