Hannah Lake Dam Reservoir Report
Last Updated: December 14, 2025
Hannah Lake Dam, located in Nodaway, Missouri, is a private earth dam that serves various purposes, with a primary purpose listed as "Other." The dam has a structural height of 25 feet and a storage capacity of 80 acre-feet, with a normal storage level of 50 acre-feet.
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Summary
It is situated on the TR-Long Branch Platte River, within the Kansas City District, and is owned by a private entity.
Despite its relatively small size, Hannah Lake Dam is considered to have a high hazard potential, although its condition assessment is listed as "Not Rated." The dam has not been inspected in recent years, with no specific inspection frequency noted. Additionally, there is limited information available on emergency action plans, risk assessments, and risk management measures associated with the dam.
For water resource and climate enthusiasts, Hannah Lake Dam presents an intriguing case study due to its unique design and high hazard potential. Further research and analysis may provide valuable insights into the dam's operation, safety measures, and potential risks, offering important lessons for sustainable water management practices in the future.
Dam Height |
25 |
River Or Stream |
TR-LONG BRANCH PLATTE RIVER |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
120 |
Nid Storage |
80 |
Structural Height |
25 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
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.
Hannah Lake Dam