Chamblee Dam Reservoir Report

Last Updated: December 5, 2025

Chamblee Dam, located in Johnston, North Carolina, is a privately owned structure with a primary purpose of recreation.


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Summary

Situated on Moccasin Creek, the dam is classified as an Earth type with a hydraulic height of 27 feet and a structural height of 30 feet. The dam has a length of 401 feet and a storage capacity of 69 acre-feet, making it an important water resource for the area.

Despite being categorized as having a low hazard potential, Chamblee Dam is subject to state regulation and inspection by the North Carolina Department of Environmental Quality's Dam Safety Program. The last inspection in December 2017 deemed the dam's condition as fair. With an inspection frequency of 5 years, efforts are in place to ensure the safety and reliability of the structure for both recreational and water management purposes.

As a site with potential for outdoor recreation and water resource management, Chamblee Dam serves as a vital asset in the area. With its modest size and low hazard potential, the dam provides opportunities for leisure activities while maintaining a fair condition under state regulatory oversight. For water resource and climate enthusiasts, Chamblee Dam offers a glimpse into the intersection of human infrastructure and natural ecosystems in a changing climate landscape.

Dam Length

401

River Or Stream

Moccasin Creek

Primary Dam Type

Earth

Surface Area

5.8

Hydraulic Height

27

Nid Storage

69

Structural Height

30

Hazard Potential

Low

Nid Height

30
       
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.