Roy Alexander Dam Reservoir Report
Last Updated: December 20, 2025
Roy Alexander Dam, also known as Alexander Lake, is a private-owned structure located in Greensboro, Alabama.
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Summary
Built in 1968 by the USDA NRCS, this Earth-type dam stands at 18 feet high and spans 600 feet in length. Its primary purpose is to serve as a Fish and Wildlife Pond, providing vital habitat for local flora and fauna.
With a storage capacity of 126 acre-feet, the dam helps regulate the flow of TR-Big German Creek and supports a drainage area of 0.19 square miles. Despite its low hazard potential, the dam has not been rated for its condition assessment since its last inspection in 1979. Its spillway type is uncontrolled, with a width of 60 feet, and a maximum discharge capacity of 200 cubic feet per second.
For water resource and climate enthusiasts, Roy Alexander Dam offers a glimpse into the intersection of human engineering and environmental conservation. As a critical component of the local ecosystem, this dam plays a crucial role in supporting biodiversity and maintaining the delicate balance of water resources in the region. Its historical significance, coupled with its ongoing management and risk assessment, make it a noteworthy site for those interested in the intersection of infrastructure and sustainability.
Year Completed |
1968 |
Dam Length |
600 |
Dam Height |
18 |
River Or Stream |
TR-BIG GERMAN CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.19 |
Nid Storage |
126 |
Hazard Potential |
Low |
Nid Height |
18 |
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.
Roy Alexander Dam