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Johnson Lake Dam
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Johnson Lake Dam Share
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Hillsborough, North Carolina
Water Supply
Local government owned
Built in 1955

Johnson Lake Dam is an earth dam built on the Eno River-Tr and is located in Hillsborough, North Carolina. It was built in 1955 for the purpose of water supply.

The dam is owned by the local government. It is also known as Ben Johnson Dam.

Location
Johnson Lake Dam
Hillsborough, North Carolina, U.S.
Dam type
Earth
Dam type
Water supply
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Town of Hillsborough
Owner
Local government

Johnson Lake Dam is owned by the local government.

Construction Share
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1955
Completed
Eno River-Tr
River built on
Johnson Lake Dam was built in 1955.
Metrics Share
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Summary
Dam length 110 feet
Structural height 15 feet
Hydraulic height 12 feet
110 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.

15 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.

12 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.

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Significant
Downstream potential hazard

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be located in areas with population and significant infrastructure.

No 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.

4/14/2004
Most recent inspection date

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Also known as Ben Johnson Dam
Latitude 36
Longitude -79
NID ID (National ID) NC00774

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