Lake Vann Dam Reservoir Report
Last Updated: December 5, 2025
Lake Vann Dam in Bullock, Alabama, is a private dam built in 1975 for flood risk reduction on TR-Bowlin Creek.
°F
°F
mph
Wind
%
Humidity
Summary
The 27-foot high earth dam has a hydraulic height of 23 feet and a length of 2100 feet, providing a storage capacity of 1500 acre-feet. The dam is owned and operated by a private entity, with no state regulation or permitting required.
Despite not being state-regulated, Lake Vann Dam poses a significant hazard potential and has not been rated for its current condition. Emergency action plans and risk assessment measures have not been fully developed or updated for the dam. With a maximum discharge of 2050 cubic feet per second, the dam plays a crucial role in managing flood risks in the area, although its maintenance and safety protocols may need further attention for long-term sustainability.
For water resource and climate enthusiasts, Lake Vann Dam serves as an interesting case study in private dam ownership and flood risk management. The dam's location in a rural area highlights the importance of maintaining infrastructure to prevent potential hazards and ensure public safety. As climate change continues to impact water resources and weather patterns, the upkeep and monitoring of structures like Lake Vann Dam will be crucial in mitigating flood risks and protecting communities downstream.
Year Completed |
1975 |
Dam Length |
2100 |
River Or Stream |
TR-BOWLIN CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
23 |
Nid Storage |
1500 |
Structural Height |
27 |
Hazard Potential |
Significant |
Nid Height |
27 |
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.
Lake Vann Dam