Potato Creek Ws Str # 103 Reservoir Report
Nearby: Honeywood Lake Dam #4 Ward's Lake Dam
Last Updated: December 5, 2025
Potato Creek WS Str # 103, also known as Lake Myrtle Dam, is a vital structure located in Lamar, Georgia, owned by the state and designed by the Natural Resources Conservation Service.
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Summary
Built in 1959, this earth dam serves the primary purpose of flood risk reduction along the Little Potato Creek, with a height of 28.5 feet and a storage capacity of 591 acre-feet. The dam has a low hazard potential and a moderate risk assessment, making it a crucial asset for managing water resources in the region.
Even though Potato Creek WS Str # 103 is not regulated by the state, it undergoes inspections every five years to ensure its structural integrity and safety. The dam features an uncontrolled spillway and outlet gates, with a surface area of 16.5 acres and a drainage area of 1280 acres. While the dam's condition is currently not rated, its risk management measures and emergency action plan are yet to be fully documented, highlighting the need for ongoing monitoring and assessment to safeguard against potential risks and hazards.
As a key component in the flood risk reduction strategy for the area, Potato Creek WS Str # 103 plays a crucial role in protecting the surrounding community from potential inundation. With its strategic location and storage capacity, this earth dam serves as a vital infrastructure asset for water resource and climate enthusiasts interested in the resilience and management of water systems in Georgia.
Year Completed |
1959 |
Dam Length |
270 |
Dam Height |
28.5 |
River Or Stream |
LITTLE POTATO CREEK |
Primary Dam Type |
Earth |
Surface Area |
16.5 |
Hydraulic Height |
26.2 |
Drainage Area |
1280 |
Nid Storage |
591 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Shoal Creek At Shoal Creek Rd
|
17cfs |
Flint River Near Griffin
|
341cfs |
Flint River Near Culloden
|
1240cfs |
Line Creek Near Senoia
|
24cfs |
Falling Creek Near Juliette
|
21cfs |
Ocmulgee River Near Jackson
|
1600cfs |
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.
Potato Creek Ws Str # 103