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Powerline Dam
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Powerline Dam Share
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Mesa / Apache Junction, Arizona
Flood Control
Local government owned
Built in 1967

Powerline Dam is an earth dam built on the Magma Wash River and is located in Mesa / Apache Junction, Arizona. It was built in 1967 for the purpose of flood control.

The dam is owned by the local government.

Location
Powerline Dam
Mesa / Apache Junction, Arizona, U.S.
Dam type
Earth
Dam type
Flood control
Purpose
Soil
Foundation type
Unknown
Core type
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Flood Control District of Maricopa County
Owner
Local government

Powerline Dam is owned by the local government.

Construction Share
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1967
Completed
SCS
Dam designer
Magma Wash River
River built on
Powerline Dam was built in 1967.
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Summary
Dam length 13,398 feet
Dam height 32 feet
Structural height 42 feet
Max discharge 25,000 cubic feet per second
Max storage 5,100 acre feet
Surface area 456 acres
Drainage area 62 square miles
13,398 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.

32 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.

42 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.

25,000 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.

5,100 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.

456 acres
Surface area

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

62 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.

1/22/2018
Most recent inspection date

Inspections are every 1 ear.

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Former name 0
Latitude 33
Longitude -111
NID ID (National ID) AZ00082

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