Harmons Pond Dam Reservoir Report

Last Updated: December 11, 2025

Harmons Pond Dam, located in Richland, South Carolina, is a privately owned earth dam constructed in 1900 for recreational purposes on Cedar Creek.


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Summary

Standing at a height of 10 feet and stretching 575 feet in length, this dam has a storage capacity of 61 acre-feet and covers a surface area of 16 acres. Despite its age, the dam is in fair condition with a high hazard potential, as assessed in March 2021.

Managed by the South Carolina Department of Health and Environmental Control, the dam is regularly inspected and enforced to ensure public safety. With a design focused on recreation, the dam offers opportunities for fishing, boating, and other water-based activities. The dam's location within the Savannah District and its proximity to the Congaree River watershed make it a vital part of the local water resource infrastructure.

Water resource and climate enthusiasts will appreciate the historical significance and functional purpose of Harmons Pond Dam. Its presence on Cedar Creek not only provides recreational enjoyment but also contributes to the overall water management efforts in the region. As efforts continue to maintain and monitor this structure, the dam remains a key component in the conservation and utilization of water resources in South Carolina.

Year Completed

1900

Dam Length

575

Dam Height

10

River Or Stream

CEDAR CREEK

Primary Dam Type

Earth

Surface Area

16

Nid Storage

61

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

10
       
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.