T C Null Reservoir Report
Nearby: American Can Company Dam Jim King
Last Updated: December 17, 2025
T C Null, also known as Null Lake, is a private fish and wildlife pond located in Sumter, Alabama.
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Summary
Built in 1972 by the USDA NRCS, this Earth type dam stands at 18 feet tall and spans 600 feet in length, providing a surface area of 62 acres and a drainage area of 0.03 square miles. With a maximum storage capacity of 93 acre-feet, this low hazard potential structure serves as a recreational spot for water resource and climate enthusiasts to enjoy.
Despite being unregulated by the state, T C Null boasts a spillway width of 50 feet and a maximum discharge rate of 850 cubic feet per second. Its moderate risk assessment rating indicates the need for careful monitoring, although the condition assessment remains unrated. With a primary purpose of supporting fish and wildlife, this picturesque pond offers a serene environment for outdoor activities while serving as a vital water resource in the region. For those interested in sustainable water management and conservation efforts, T C Null is a must-visit destination in Oakchia, Alabama.
Year Completed |
1972 |
Dam Length |
600 |
Dam Height |
18 |
River Or Stream |
COTAHAGA CREEK |
Primary Dam Type |
Earth |
Surface Area |
62 |
Drainage Area |
0.03 |
Nid Storage |
93 |
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.
T C Null