Hill's Millpond Dam Reservoir Report
Nearby: Wells Lake Dam (South) Wells Lake Dam
Last Updated: December 6, 2025
Hill's Millpond Dam, located in Ellaville, Georgia, stands as a historic structure completed in 1850 and boasting a height of 12.7 feet.
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Summary
This Earth dam, primarily used for purposes classified as "Other," holds a storage capacity of 180.4 acre-feet and serves the Coon Creek watershed with a normal storage capacity of 96.6 acre-feet. While its hazard potential is rated as low and condition assessment remains unrated, the dam has been inspected periodically, with the last inspection taking place in May 2016.
Despite its age, Hill's Millpond Dam continues to provide vital water resource management functions for the surrounding area, demonstrating a moderate risk level that warrants attention and ongoing monitoring. Its design features an uncontrolled spillway and outlet gates, contributing to its capacity to mitigate potential flood events. The dam's association with the Savannah District of the US Army Corps of Engineers underscores its significance as a key piece of infrastructure in the region, showcasing a fusion of historical importance and contemporary water management practices.
Water resource and climate enthusiasts fascinated by the intersection of infrastructure, history, and environmental stewardship will find Hill's Millpond Dam a compelling subject of study. As a private-owned dam in Georgia, its role in regulating water flow, providing storage capacity, and managing risk underscores the critical importance of maintaining and monitoring aging infrastructure in the face of evolving climate conditions. With its low hazard potential and moderate risk assessment, this Earth dam stands as a testament to the resilience and adaptability required in ensuring the sustainable management of water resources for future generations.
Year Completed |
1850 |
Dam Length |
300 |
Dam Height |
12.7 |
River Or Stream |
COON CREEK |
Primary Dam Type |
Earth |
Surface Area |
32.2 |
Hydraulic Height |
8.2 |
Drainage Area |
2682 |
Nid Storage |
180.4 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Flint River At Ga 26
|
2200cfs |
Muckalee Creek Near Americus
|
222cfs |
Kinchafoonee Creek At Preston
|
220cfs |
Flint River Near Culloden
|
1240cfs |
Turkey Creek At Byromville
|
10cfs |
Upatoi Creek Near Columbus
|
275cfs |
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.
Hill's Millpond Dam