Bogan Dam Reservoir Report
Last Updated: December 5, 2025
Bogan Dam, located in Union, South Carolina, was completed in 1971 and serves as a private recreational facility.
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Summary
The earth dam stands at a height of 34 feet and spans 1615 feet in length, providing a storage capacity of 300 acre-feet. Despite its low hazard potential, the dam's condition assessment in 2019 revealed a poor state, prompting the need for ongoing inspections and maintenance.
Managed by the South Carolina Department of Health and Environmental Control, Bogan Dam overlooks the scenic TR-Swink Creek and offers a surface area of 25 acres for water enthusiasts and nature lovers to enjoy. While the dam remains state-regulated, its primary purpose remains recreation, with no associated locks or spillways. The dam's inspection frequency is set at 5 years, with the last assessment conducted in December 2019.
For water resource and climate enthusiasts, Bogan Dam presents a unique opportunity to explore the intersection of water management and recreational activities. With its serene location and historical significance, the dam stands as a testament to the importance of sustainable infrastructure development and maintenance in ensuring community safety and enjoyment. As efforts continue to monitor and improve the dam's condition, stakeholders are reminded of the critical role that water resources play in our daily lives and the need for proactive stewardship of these vital assets.
Year Completed |
1971 |
Dam Length |
1615 |
Dam Height |
34 |
River Or Stream |
TR-SWINK CREEK |
Primary Dam Type |
Earth |
Surface Area |
25 |
Nid Storage |
300 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Lawsons Fork Creek At Spartanburg Sc
|
66cfs |
Broad River Below Cherokee Falls
|
900cfs |
Pacolet River Below Lake Blalock Near Cowpens
|
201cfs |
Broad River Near Gaffney
|
1890cfs |
Tyger River Near Delta
|
469cfs |
Broad River Near Carlisle
|
1870cfs |
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.
Bogan Dam