Middle Oconee- Walnut Creek Structure No 9 Reservoir Report
Nearby: Alpha Iii Lake Dam Berry Lake Dam
Last Updated: December 15, 2025
Middle Oconee- Walnut Creek Structure No 9, located in Hall, Georgia, was completed in 1972 with a primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam stands at a height of 46 feet and spans 540 feet, providing a storage capacity of 448 acre-feet. Despite being uncontrolled, the spillway type and outlet gates are listed as uncontrolled, indicating the need for further risk management measures.
The dam is under state jurisdiction, with regular inspections conducted by the Natural Resources Conservation Service. The hazard potential is rated as low, with a moderate risk assessment score of 3. While the condition assessment is marked as "Not Rated," the structure's risk management measures and emergency action plan status are currently unspecified. With the potential for further modifications and enhancements, Middle Oconee- Walnut Creek Structure No 9 serves as a critical asset in mitigating flood risks in the region.
Year Completed |
1972 |
Dam Length |
540 |
Dam Height |
46 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
9 |
Drainage Area |
1107 |
Nid Storage |
448 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
46 |
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.
Middle Oconee- Walnut Creek Structure No 9