Hoover Frankum C-20 Reservoir Report
Last Updated: December 16, 2025
Hoover Frankum C-20, located in Nodaway, Missouri, is a vital structure designed by USDA NRCS to mitigate flood risks along the Hagey Br 102 River.
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Summary
Completed in 1973, this earth dam stands at a height of 46 feet, with a length of 750 feet and a storage capacity of 225 acre-feet. The dam plays a crucial role in flood risk reduction, showcasing a low hazard potential and a satisfactory condition assessment.
Managed by local government authorities, Hoover Frankum C-20 is regulated by the DAM AND RESERVOIR SAFETY PROG in Missouri, ensuring state jurisdiction, permitting, inspection, and enforcement. The dam features an uncontrolled spillway, slide gates for outlet control, and a stone core foundation on soil. With a drainage area of 458 square miles and a maximum discharge of 1259 cubic feet per second, the dam serves as a key infrastructure for water resource management in the region.
As climate change impacts water resources, structures like Hoover Frankum C-20 are essential for safeguarding communities against flooding events. Despite being constructed nearly five decades ago, the dam continues to meet regulatory standards and provide effective flood control measures. With a moderate risk assessment rating, ongoing maintenance and preparedness efforts are crucial to ensure the long-term resilience and functionality of this critical water management infrastructure.
Year Completed |
1973 |
Dam Length |
750 |
Dam Height |
46 |
River Or Stream |
HAGEY BR 102 RIVER |
Primary Dam Type |
Earth |
Surface Area |
16 |
Drainage Area |
458 |
Nid Storage |
225 |
Structural Height |
46 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
46 |
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.
Hoover Frankum C-20