Hiawassee Irrigation Lake Dam Reservoir Report
Nearby: Powell Lake Dam Williams Lake Dam
Last Updated: December 6, 2025
Hiawassee Irrigation Lake Dam, located in Oak Park, Georgia, was completed in 1985 and serves as a crucial water resource for irrigation purposes in the region.
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Summary
Owned privately, this earth dam stands at a height of 18.8 feet, with a storage capacity of 222 acre-feet. Despite being unlisted in terms of foundations, the dam boasts a structural height of 17.8 feet and a length of 745 feet, ensuring efficient water management for agricultural needs in the area.
Managed by the Savannah District of the US Army Corps of Engineers, Hiawassee Irrigation Lake Dam poses a low hazard potential and has a moderate risk assessment rating of 3. While the dam's condition assessment is not rated, it undergoes inspections every 5 years to ensure its structural integrity and safety. The dam features uncontrolled spillways and outlet gates, contributing to its efficient operation and water discharge capabilities. With a normal storage capacity of 140 acre-feet and a surface area of 20 acres, the dam plays a vital role in supporting local farms and sustaining agricultural activities in Emanuel County, Georgia.
With its primary purpose being irrigation, Hiawassee Irrigation Lake Dam stands as a testament to effective water resource management in the region. Despite not being regulated by the state, the dam's strategic location and design by the Soil Conservation Service (SCS) have made it a crucial asset for water supply and agricultural development in Oak Park. As a key component of the local water infrastructure, the dam continues to support the community's irrigation needs while maintaining a moderate risk level and ensuring the safety of its surroundings.
Year Completed |
1985 |
Dam Length |
745 |
Dam Height |
18.8 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
17.8 |
Nid Storage |
222 |
Structural Height |
17.8 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ohoopee River Near Reidsville
|
105cfs |
Oconee River Near Mount Vernon
|
2230cfs |
Canoochee River Near Claxton
|
16cfs |
Altamaha River Near Baxley
|
3480cfs |
Ogeechee River At Midville
|
662cfs |
Ogeechee River At Rocky Ford Rd
|
557cfs |
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.
Hiawassee Irrigation Lake Dam