Robert F. Henry Lock And Dam Reservoir Report
Nearby: Ann Upchurch #2 M A Rickard
Last Updated: December 5, 2025
Robert F.
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Summary
Henry Lock and Dam, located on the Alabama River in Lowndes County, Alabama, is a gravity dam completed in 1974 with a primary purpose of navigation. Standing at a structural height of 110 feet and a hydraulic height of 70 feet, this dam plays a crucial role in managing water levels and ensuring the structural integrity of the surrounding areas. With a storage capacity of 234,200 acre-feet and a maximum discharge of 653,000 cubic feet per second, the dam also serves hydroelectric and recreational purposes.
Managed by the US Army Corps of Engineers, Robert F. Henry Lock and Dam has a significant hazard potential and a very high risk assessment rating. To mitigate flood risks, the Corps continuously monitors the dam's condition, prioritizes risk-reduction activities, and engages with local emergency managers and the public to raise awareness and preparedness for potential emergencies. Regular maintenance and updates to the emergency action plan are key components of the risk management strategy for this critical infrastructure.
As a key feature of the water resource system in the region, Robert F. Henry Lock and Dam underscores the importance of proactive risk management in the face of changing climate conditions and potential severe weather events. With ongoing efforts to ensure the dam's safety and effectiveness, this structure remains a vital component of water resource management in Alabama.
Year Completed |
1974 |
Dam Length |
1150 |
River Or Stream |
ALABAMA RIVER |
Primary Dam Type |
Gravity |
Surface Area |
12300 |
Length Of Locks |
600 |
Hydraulic Height |
70 |
Drainage Area |
16233 |
Nid Storage |
234200 |
Structural Height |
110 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
110 |
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.
Robert F. Henry Lock And Dam