Billy Tillman Lake Dam # 1 Reservoir Report
Last Updated: December 5, 2025
Billy Tillman Lake Dam # 1, located in Bulloch, Georgia, is a privately owned earth dam primarily used for recreational purposes.
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Summary
The dam, completed in 1954, stands at a height of 11 feet and has a length of 620 feet, providing a storage capacity of 138 acre-feet. With a normal storage capacity of 81 acre-feet and a surface area of 19 acres, the dam serves as a popular spot for outdoor activities and water-based recreation in the area.
Although the dam is classified as having a low hazard potential and a moderate risk assessment, it has not been inspected since 2004. The dam features an uncontrolled spillway and outlet gates, with no state regulation or permitting in place. Owned by a private entity, the dam remains under state jurisdiction but lacks enforcement measures. Despite its age, the dam continues to support the surrounding community's recreational needs while posing minimal risk to its surroundings.
Year Completed |
1954 |
Dam Length |
620 |
Dam Height |
11 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
19 |
Hydraulic Height |
11 |
Drainage Area |
70 |
Nid Storage |
138 |
Structural Height |
11 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
11 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ogeechee River At Rocky Ford Rd
|
557cfs |
Canoochee River Near Claxton
|
16cfs |
Beaverdam Creek Near Sardis
|
7cfs |
Brier Creek At Millhaven
|
458cfs |
Savannah River Near Clyo
|
6820cfs |
Ebenezer Creek At Springfield
|
12cfs |
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.
Billy Tillman Lake Dam # 1