Blanks Lake Dam Reservoir Report
Nearby: James Lake Dam Mckenzie Mill Pond Dam
Last Updated: December 5, 2025
Blanks Lake Dam, located in Montezuma, Georgia, was completed in 1980 and is primarily used for recreation purposes.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, with a height of 28.2 feet and a hydraulic height of 25.2 feet, has a storage capacity of 105 acre-feet and covers a surface area of 6 acres. Despite its low hazard potential, the dam is inspected every 5 years to ensure its safety and structural integrity.
Managed by the Natural Resources Conservation Service, Blanks Lake Dam is an earth dam with a buttress core type and an uncontrolled spillway. The dam sits on an unknown foundation and has not been modified since its completion. With a moderate risk assessment rating, the dam's condition is currently not rated, highlighting the need for ongoing monitoring and maintenance to ensure its long-term stability.
Although the dam is privately owned, it falls under state jurisdiction and is subject to state inspections. Situated in Macon County, Georgia, Blanks Lake Dam plays a vital role in providing recreational opportunities for the local community while also serving as a water resource for the surrounding area. Enthusiasts of water resources and climate will find this dam an intriguing example of human-made infrastructure in harmony with the natural environment.
Year Completed |
1980 |
Dam Length |
240 |
Dam Height |
28.2 |
River Or Stream |
Unknown |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
25.2 |
Drainage Area |
130 |
Nid Storage |
105 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Flint River At Ga 26
|
2200cfs |
Turkey Creek At Byromville
|
10cfs |
Muckalee Creek Near Americus
|
222cfs |
Tucsawhatchee Creek Near Hawkinsville
|
39cfs |
Flint River Near Culloden
|
1240cfs |
Ocmulgee River At Hawkinsville
|
2570cfs |
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.
Blanks Lake Dam