Mallow Lake Dam Reservoir Report
Nearby: Gardner Dam D. O. Allen Dam
Last Updated: December 25, 2025
Mallow Lake Dam, located in Tecumseh, Missouri, was completed in 1975 and serves primarily for irrigation purposes.
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Summary
The dam, with a height of 25 feet and a storage capacity of 80 acre-feet, is classified as an earth dam with a buttress core type. It is situated on Tr-Brixey Creek, within the Ozark County of Missouri, and is under the jurisdiction of the state with no federal regulatory oversight.
Despite its relatively small surface area of 6 acres, Mallow Lake Dam poses a high hazard potential due to its structural characteristics and location. The condition assessment of the dam is currently not rated, and there is no information available on its emergency action plan or risk management measures. The dam does not have a spillway and its hazard potential warrants regular inspection and monitoring.
For water resource and climate enthusiasts, Mallow Lake Dam presents an intriguing case study of a privately owned structure with significant implications for water management and safety. The dam's history, design features, and operational purpose offer valuable insights into the challenges and considerations involved in maintaining and regulating dams in rural areas. The high hazard potential of Mallow Lake Dam underscores the importance of proactive risk assessment and emergency preparedness in safeguarding water resources and surrounding communities.
Year Completed |
1975 |
Dam Height |
25 |
River Or Stream |
TR-BRIXEY CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
140 |
Nid Storage |
80 |
Structural Height |
25 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bryant Creek Near Tecumseh
|
185cfs |
North Fork River Near Tecumseh
|
377cfs |
Beaver Creek At Bradleyville
|
53cfs |
White River Near Norfork
|
1520cfs |
Bull Creek Near Walnut Shade
|
6cfs |
White River At Calico Rock
|
1970cfs |
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.
Mallow Lake Dam