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Little Black River Structure A. Dam
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Little Black River Structure A. Dam Share
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Overview Share
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Cheboygan, Michigan
Flood Control
Local government owned
Built in 1962

Little Black River Structure A. Dam is an earth dam built on the Little Black River and is located in Cheboygan, Michigan. It was built in 1962 for the purpose of flood control.

The dam is owned by the local government. It is also known as Structure A.

Location
Little Black River Structure A. Dam
Cheboygan, Michigan, U.S.
Dam type
Earth
Dam type
Flood control
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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City of Cheboygan
Owner
Local government

Little Black River Structure A. Dam is owned by the local government.

Construction Share
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1962
Completed
USDA SCS
Dam designer
Little Black River
River built on
Little Black River Structure A. Dam was built in 1962.
Metrics Share
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Summary
Dam length 350 feet
Dam height 34 feet
Structural height 34 feet
Hydraulic height 28 feet
Max discharge 11,200 cubic feet per second
Max storage 440 acre feet
Drainage area 10 square miles
350 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.

34 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.

34 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.

28 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.

11,200 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.

440 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.

10 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.

8/15/2017
Most recent inspection date

Inspections are every 3 years.

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Also known as Structure A.
Former name 0
Latitude 45
Longitude -84
NID ID (National ID) MI00040

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