Hock Dam Reservoir Report

Last Updated: December 5, 2025

Hock Dam, located in Durham, North Carolina, is a privately owned recreational dam on the Eno River.


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Summary

With a structural height of 20 feet and a storage capacity of 8 acre-feet, this earth dam serves primarily for recreational purposes. Despite its small size, Hock Dam is classified as having a high hazard potential, although its condition was assessed as satisfactory during the last inspection in February 2020.

Managed by the North Carolina Department of Environmental Quality's Dam Safety Program, Hock Dam is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with standards. While the dam does not have a designated year of completion, its upkeep and maintenance are crucial to prevent potential risks and ensure the protection of downstream communities. As a significant feature along the Eno River, Hock Dam provides both recreational opportunities and serves as a vital component of the local water resource infrastructure.

River Or Stream

Eno River-Tr

Primary Dam Type

Earth

Nid Storage

8

Structural Height

20

Hazard Potential

High

Nid Height

20
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
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 in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.