Lancaster-Boone Dam Reservoir Report
Last Updated: January 12, 2026
Lancaster-Boone Dam, located in Greenville, South Carolina, was completed in 1989 and stands at a height of 23 feet with a length of 520 feet.
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Summary
This privately owned Earth dam serves multiple purposes, including recreation, and has a storage capacity of 104 acre-feet. The dam is primarily regulated by the South Carolina Department of Health and Environmental Control, ensuring that it meets state inspection and enforcement standards.
Despite being classified as a low hazard potential structure with fair condition assessment, Lancaster-Boone Dam poses a moderate risk due to its location and potential impact on the Middle Tyger River. The dam features an uncontrolled spillway and outlet gates, with a risk management assessment rating of 3. Regular inspections are conducted every five years to monitor the dam's structural integrity and overall safety measures.
Water resource and climate enthusiasts can appreciate Lancaster-Boone Dam as a vital infrastructure supporting both recreational activities and water storage in the region. With its unique design and purpose, the dam serves as a key component in managing water resources while also highlighting the importance of maintaining and regulating such structures to ensure public safety and environmental protection.
Year Completed |
1989 |
Dam Length |
520 |
Dam Height |
23 |
River Or Stream |
TR-MIDDLE TYGER RIVER |
Primary Dam Type |
Earth |
Surface Area |
16 |
Nid Storage |
104 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Lancaster-Boone Dam