Grove River Ws Str #21 Reservoir Report
Last Updated: December 5, 2025
Grove River WS Str #21 is a state-owned water structure located in Banks, Georgia, designed by the Natural Resources Conservation Service.
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Summary
Completed in 1969, this earth dam stands at a height of 30 feet and serves the primary purpose of flood risk reduction. With a storage capacity of 218 acre-feet and a drainage area of 545 square miles, this structure plays a crucial role in managing water resources in the region.
Despite its low hazard potential, Grove River WS Str #21 has a moderate risk assessment rating, indicating the need for ongoing monitoring and maintenance. The dam features an uncontrolled spillway and outlet gates, with the last inspection conducted in October 2012. While the condition assessment is currently not rated, the structure is regularly inspected every 5 years to ensure its integrity and safety.
Located in the Savannah District, Grove River WS Str #21 is a vital component of the water infrastructure in the area, providing essential flood protection and water storage capabilities. As a key player in managing water resources and mitigating flood risks, this structure highlights the importance of sustainable water management practices in the face of changing climate patterns and increasing water demands.
Year Completed |
1969 |
Dam Length |
420 |
Dam Height |
30 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
23 |
Drainage Area |
545 |
Nid Storage |
218 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
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.
Grove River Ws Str #21