Harmon Pond Dam Reservoir Report
Nearby: Park Pond Dam King Millpond Dam
Last Updated: December 6, 2025
Harmon Pond Dam, also known as John Campolong Dam, is a private-owned structure located in Chesterfield, South Carolina.
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Summary
Completed in 1960, this earth dam stands at a height of 17 feet and spans 600 feet in length. Its primary purpose is for recreation, offering a serene environment for water resource and climate enthusiasts to enjoy activities such as fishing and boating on the LOWER ALLIGATOR CREEK.
Despite its low hazard potential, the condition assessment of Harmon Pond Dam was deemed unsatisfactory during its last inspection in October 2017. With a normal storage capacity of 75 acre-feet and a maximum storage of 158 acre-feet, the dam poses a significant risk if not properly maintained. The state regulatory agency, SC DHEC, oversees the permitting, inspection, and enforcement of the dam to ensure public safety and environmental protection.
With its scenic location and recreational opportunities, Harmon Pond Dam serves as a valuable asset to the community. However, the need for regular maintenance and oversight is crucial to prevent any potential risks associated with its condition. Water resource and climate enthusiasts are encouraged to appreciate the beauty of this dam while advocating for its proper management to ensure its long-term sustainability.
Year Completed |
1960 |
Dam Length |
600 |
Dam Height |
17 |
River Or Stream |
LOWER ALLIGATOR CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Nid Storage |
158 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Black Creek Near Mcbee
|
128cfs |
Black Creek Near Hartsville
|
142cfs |
Lynches River Near Bishopville
|
425cfs |
Pee Dee River Nr Bennettsville
|
2500cfs |
Wateree River Nr. Camden
|
2170cfs |
Black Creek Near Quinby
|
376cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Harmon Pond Dam