No. Fork Forked Deer #31a Reservoir Report
Last Updated: December 7, 2025
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Summary
Fork Forked Deer #31a is a vital earth dam located in Gibson, Tennessee, designed by the USDA NRCS and completed in 2002 for flood risk reduction along the tributary of Forked Deer River. With a hydraulic height of 13.6 feet and a structural height of 19.7 feet, this dam plays a crucial role in controlling water flow and protecting the surrounding area from potential flooding events. The dam has a low hazard potential and has been assessed as satisfactory in its condition, ensuring its effectiveness in mitigating flood risks.
Managed by the Tennessee Safe Dams Program, this local government-owned structure is subject to state regulation, permitting, inspection, and enforcement to guarantee its operational safety and compliance with regulatory standards. The dam has a storage capacity of 87 acre-feet, with a normal storage level of 25 acre-feet, covering a surface area of 6.3 acres and draining a 0.23 square-mile watershed area. Even though the dam has no outlet gates or locks, its uncontrolled spillway type allows for controlled water release during high flow events, enhancing its flood control capabilities.
With its strategic location and design, No. Fork Forked Deer #31a serves as a crucial infrastructure for flood risk reduction in the region, providing peace of mind to the local community and ensuring the protection of valuable assets and resources from potential water-related disasters. Its satisfactory condition, moderate risk assessment rating, and regular inspection schedule highlight the commitment to maintaining its functionality and safety for the benefit of all stakeholders involved in water resource and climate management.
Year Completed |
2002 |
Dam Length |
483 |
River Or Stream |
TRIBNO. FORK FORKED DEER |
Primary Dam Type |
Earth |
Surface Area |
6.3 |
Hydraulic Height |
13.6 |
Drainage Area |
0.23 |
Nid Storage |
87 |
Structural Height |
19.7 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
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.
No. Fork Forked Deer #31a