Hahn Lake Dam Reservoir Report
Last Updated: December 16, 2025
Hahn Lake Dam, located in Rothville, Missouri, was completed in 1955 and serves multiple purposes including fire protection, stock maintenance, and as a small fish pond.
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Summary
The dam, standing at 25 feet tall, has a storage capacity of 107 acre-feet and covers a surface area of 8 acres. With a low hazard potential and a condition assessment of "Not Rated," the dam is a vital resource for water supply in the region.
The primary dam type for Hahn Lake Dam is earth, with a buttress core type and an unspecified foundation. Despite being privately owned, the dam is not regulated by the state and does not require inspections or permits. It is situated along the TR-PIN OAK BR-E YELLOW CREEK, within the Rock Island District. The dam's location, surrounded by the natural beauty of Linn County, provides opportunities for recreation and wildlife habitat conservation.
Hahn Lake Dam is a significant water resource structure in Missouri, contributing to the local ecosystem and providing essential services for the community. With its historical significance and multi-functional design, the dam stands as a testament to the importance of water conservation and management in the face of changing climate conditions. As a low-hazard structure with no current risk assessment or emergency action plan, continued monitoring and maintenance will be crucial to ensure the safety and effectiveness of Hahn Lake Dam for years to come.
Year Completed |
1955 |
Dam Height |
25 |
River Or Stream |
TR-PIN OAK BR-E YELLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
253 |
Nid Storage |
107 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
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.
Hahn Lake Dam