Jw Yonce And Sons Dam 1 Reservoir Report
Nearby: Jon Prince Dam Satcher-Smith Pond Dam
Last Updated: December 5, 2025
Jw Yonce and Sons Dam 1, located in Edgefield, South Carolina, was completed in 1987 and serves as a crucial irrigation source in the region.
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Summary
The dam, standing at a height of 22 feet and stretching 925 feet in length, has a storage capacity of 100 acre-feet, with a normal storage level of 58 acre-feet. Situated on Log Creek, the dam is primarily used for agricultural purposes, highlighting its vital role in supporting the local economy and sustaining water resources for irrigation.
Despite its importance, the dam is in poor condition, as indicated by a 2017 assessment. With a low hazard potential but a moderate risk level, there is a recognized need for ongoing maintenance and potential improvements to ensure its structural integrity and long-term functionality. The dam is regulated by the South Carolina Department of Health and Environmental Control (SC DHEC), with state permitting, inspection, and enforcement processes in place to monitor its operation and safety. As a privately owned structure, Jw Yonce and Sons Dam 1 underscores the importance of effective management and maintenance of water resources to address climate change challenges and ensure sustainable water use in the region.
Year Completed |
1987 |
Dam Length |
925 |
Dam Height |
22 |
River Or Stream |
LOG CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Nid Storage |
100 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mctier Creek (Rd 209) Near Monetta
|
20cfs |
Stevens Creek Near Modoc
|
149cfs |
Augusta Canal Nr Augusta (Upper)
|
2080cfs |
Lake Greenwood Tailrace Nr Chappells
|
1090cfs |
Saluda River At Chappells
|
1220cfs |
Butler Creek Below 7th Avenue
|
8cfs |
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.
Jw Yonce And Sons Dam 1