Angry Beaver Lake Dam Reservoir Report
Nearby: Slinkman Lake Dam Pueschel Lake Dam
Last Updated: December 22, 2025
Angry Beaver Lake Dam, also known as J.C.'s Lunker Lagoon Dam, is a privately owned structure located in Gasconade, Missouri.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1979 by designers Elmer Kuhn and Luther Basham, this earth dam stands at a height of 44 feet and spans a length of 650 feet. The dam serves the primary purpose of recreation, providing a surface area of 15 acres and a storage capacity of 232 acre-feet.
Managed by the Dam and Reservoir Safety Program in Missouri, Angry Beaver Lake Dam is subject to state regulations, inspections, and enforcement to ensure its safety and compliance. Despite its low hazard potential and satisfactory condition assessment, the dam poses a moderate risk due to its location on the TR-DRY FORK-BOURBEUSE RIVER. The spillway, with a width of 12 feet, is uncontrolled, and the dam features valve outlet gates for water release. With a maximum discharge capacity of 679 cubic feet per second, the dam plays a crucial role in managing water resources in the area.
For water resource and climate enthusiasts, Angry Beaver Lake Dam offers a fascinating case study in dam management and risk assessment. Its design, construction, and ongoing maintenance provide valuable insights into the complexities of balancing recreation, water storage, and environmental considerations. As a privately owned structure in a scenic location, the dam serves as a reminder of the importance of sustainable water management practices in the face of changing climates and increasing demands on freshwater resources.
Year Completed |
1979 |
Dam Length |
650 |
Dam Height |
44 |
River Or Stream |
TR-DRY FORK-BOURBEUSE RIVER |
Surface Area |
15 |
Drainage Area |
128 |
Nid Storage |
232 |
Structural Height |
44 |
Outlet Gates |
Valve |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
44 |
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.
Angry Beaver Lake Dam