Merrell Lake Dam Reservoir Report
Nearby: Herd Dam Mallow Lake Dam
Last Updated: December 25, 2025
Merrell Lake Dam, located in Mammoth, Missouri, was completed in 1967 and stands at a height of 26 feet.
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Summary
The dam serves primarily for recreational purposes, with a storage capacity of 42 acre-feet and a surface area of 2 acres. It is classified as an earth dam with a buttress core type and is privately owned.
Despite being in a high hazard potential area, Merrell Lake Dam has not been rated for its condition as of the last inspection in 1980. The dam is not regulated or inspected by the state, and there is no emergency action plan in place. The dam's location on TR-Lick Creek in the Ozark County adds to its appeal for water resource and climate enthusiasts seeking to explore the surrounding area.
With its close proximity to the Little Rock District and a lack of federal agency involvement, Merrell Lake Dam provides an interesting case study for the management and assessment of private dams. Its historical significance and recreational value make it a focal point for those interested in the impact of water resources on local communities and the challenges of maintaining infrastructure in rural areas.
Year Completed |
1967 |
Dam Height |
26 |
River Or Stream |
TR-LICK CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
35 |
Nid Storage |
42 |
Structural Height |
26 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bryant Creek Near Tecumseh
|
185cfs |
North Fork River Near Tecumseh
|
377cfs |
White River Near Norfork
|
1520cfs |
Beaver Creek At Bradleyville
|
53cfs |
White River At Calico Rock
|
1970cfs |
Buffalo River Near Harriet
|
124cfs |
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.
Merrell Lake Dam