Summary
Neely Henry, a gravity dam located on the Coosa River in Alabama, serves as a crucial hydroelectric and recreational resource in the region. Completed in 1966, this dam stands at a height of 104 feet and has a storage capacity of 121,860 acre-feet, providing essential water management for the area. The dam's spillway, with a width of 300 feet, helps regulate water flow and prevent flooding in times of high discharge, showcasing its importance in managing water resources.
With a high hazard potential and a very high risk assessment rating, H. Neely Henry's safety and risk management measures are of utmost importance. Despite the lack of detailed condition assessment information, the Federal Energy Regulatory Commission oversees its operations, inspections, and regulatory compliance. The dam's emergency action plan and risk management strategies are critical in ensuring the safety of surrounding communities and infrastructure in the event of an emergency, highlighting the vital role this structure plays in water resource management and climate resilience efforts in the area.
Year Completed |
1966 |
Dam Length |
4705 |
Dam Height |
104 |
River Or Stream |
Coosa River |
Primary Dam Type |
Gravity |
Surface Area |
11235 |
Hydraulic Height |
53 |
Drainage Area |
6600 |
Nid Storage |
121860 |
Structural Height |
104 |
Outlet Gates |
Tainter (radial) - 6 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
104 |
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.
H. Neely Henry
St. Clair County