Hannibal Locks And Dam Reservoir Report
Nearby: Tubaugh Lake Dam Ronnie Wade Dam
Last Updated: December 14, 2025
Located in Wetzel, West Virginia, the Hannibal Locks and Dam is a vital structure along the Ohio River, completed in 1974 by the US Army Corps of Engineers.
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Summary
This gravity-type dam serves the primary purpose of navigation, with hydroelectric capabilities as well. The dam boasts a hydraulic height of 51 feet and a structural height of 42 feet, with a length of 1403 feet and a maximum discharge capacity of 335,000 cubic feet per second.
With a significant hazard potential, the Hannibal Locks and Dam is subject to regular inspections and risk management measures to ensure its structural integrity and mitigate flood risks in the area. The US Army Corps of Engineers actively monitors the dam's condition, engages with local emergency managers, and updates emergency action plans to prepare for any potential dam-related emergencies. Despite the challenges posed by severe weather events and water management, the Hannibal Locks and Dam continues to play a crucial role in maintaining water levels and safeguarding the surrounding communities along the Ohio River.
Year Completed |
1974 |
Dam Length |
1403 |
River Or Stream |
OHIO RIVER |
Primary Dam Type |
Gravity |
Surface Area |
6650 |
Length Of Locks |
1200 |
Hydraulic Height |
51 |
Drainage Area |
25967 |
Nid Storage |
130000 |
Structural Height |
42 |
Outlet Gates |
Tainter (radial) - 8 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
51 |
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.
Hannibal Locks And Dam