Tallman Dam Reservoir Report
Nearby: Snowbarger Dam Knapp Dam
Last Updated: December 7, 2025
Tallman Dam, located in Memphis, Missouri, is a privately owned earth dam that was completed in 1990 for the primary purpose of grade stabilization.
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Summary
Standing at a height of 29 feet with a length of 397 feet, this dam helps to control the flow of the TR-North Fabius River, providing fire protection, stock, and serving as a small fish pond. With a normal storage capacity of 70 acre-feet and a maximum storage capacity of 92 acre-feet, Tallman Dam covers a surface area of 11 acres and drains a watershed area of 465 square miles.
Managed by the Kansas City District of the US Army Corps of Engineers, Tallman Dam has a low hazard potential and is currently in a not rated condition assessment. Despite its moderate risk level, the dam has not been inspected recently, and no emergency action plan has been prepared. With an uncontrolled spillway and no outlet gates, the dam remains a vital structure for the local community, ensuring the stability of the surrounding area while offering additional benefits to the environment and wildlife. Water resource and climate enthusiasts will find Tallman Dam to be a fascinating example of how human intervention can positively impact natural ecosystems.
Year Completed |
1990 |
Dam Length |
397 |
Dam Height |
29 |
River Or Stream |
TR-NORTH FABIUS RIVER |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
29 |
Drainage Area |
465 |
Nid Storage |
92 |
Structural Height |
29 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Fox River At Bloomfield
|
7cfs |
Chariton River At Livonia
|
45cfs |
Chariton River Near Moulton
|
34cfs |
Chariton River At Novinger
|
74cfs |
Des Moines River At Keosauqua
|
1800cfs |
Chariton River Near Rathbun
|
14cfs |
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.
Tallman Dam