Roy Lee Carmack Reservoir Report
Nearby: Herrold Lake Dam Rusk Lake Dam
Last Updated: December 19, 2025
Located in Grundy, Missouri, the Roy Lee Carmack dam was completed in 1990 by the USDA NRCS with a primary purpose of grade stabilization along the TR-MEDICINE river.
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Summary
This earth dam stands at 27 feet high and stretches 354 feet in length, providing a storage capacity of 23 acre-feet for fire protection, stock, or small fish pond purposes. With a drainage area of 120 acres, the dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.
Despite being privately owned, the Roy Lee Carmack dam falls under the jurisdiction of the Rock Island District and is not regulated by the state of Missouri. With a spillway width of 10 feet and no outlet gates, the dam poses a moderate risk level of 3 according to the provided data. While the structure has not been inspected since January 1990, it is designed to withstand potential emergencies, although specific emergency action plans and risk management measures are not outlined.
Water resource and climate enthusiasts will be intrigued by the design and function of the Roy Lee Carmack dam, which serves multiple purposes and plays a crucial role in maintaining water levels along the TR-MEDICINE river. The dam's strategic location in Chula, Missouri, and its low hazard potential make it a key component in the region's water management infrastructure. The data provided offers a glimpse into the dam's specifications, its history, and its current risk assessment, highlighting the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in safeguarding the surrounding area from potential flooding events.
Year Completed |
1990 |
Dam Length |
354 |
Dam Height |
27 |
River Or Stream |
TR-MEDICINE |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
26 |
Drainage Area |
120 |
Nid Storage |
23 |
Structural Height |
27 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Medicine Creek Near Laredo
|
6cfs |
Thompson River At Trenton
|
111cfs |
Locust Creek Near Linneus
|
35cfs |
Grand River At Chillicothe
|
361cfs |
Grand River Near Gallatin
|
61cfs |
Grand River Near Sumner
|
220cfs |
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.
Roy Lee Carmack