Wiggam Branch Lake Dam Reservoir Report
Nearby: Wiggham Branch Lake Judy Dam
Last Updated: December 14, 2025
Wiggam Branch Lake Dam, located in the scenic surroundings of Swift Creek Lake environs in Upson, Georgia, is a privately owned structure with a primary purpose of recreation.
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Summary
Built in 1972 by designer Harvey Green, this earth-type dam stands at a height of 34 feet and stretches 530 feet in length. The dam boasts a storage capacity of 712 acre-feet, with a normal storage level of 377 acre-feet, covering a surface area of 30 acres and draining from a watershed area of 870 acres.
Despite its low hazard potential, the dam has not been rated for its condition assessment and faces a moderate risk due to its age and lack of updated emergency action plans. The last inspection was conducted in June 2018, with a scheduled frequency of every five years. The dam features an uncontrolled spillway and outlet gates, as well as stone core construction on an unknown foundation. With its picturesque location and recreational benefits, Wiggam Branch Lake Dam serves as a vital water resource for the community while requiring ongoing risk management measures to ensure its continued safety and functionality.
Year Completed |
1972 |
Dam Length |
530 |
Dam Height |
34 |
River Or Stream |
WIGGAM BRANCH |
Primary Dam Type |
Earth |
Surface Area |
30 |
Drainage Area |
870 |
Nid Storage |
712 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Flint River Near Culloden
|
677cfs |
Tobesofkee Creek Near Macon
|
6cfs |
Flint River At Ga 26
|
1430cfs |
Flint River Near Griffin
|
89cfs |
Shoal Creek At Shoal Creek Rd
|
15cfs |
Ocmulgee River At Macon
|
803cfs |
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.
Wiggam Branch Lake Dam