Byron Simpson Lake Dam Reservoir Report
Last Updated: December 18, 2025
Byron Simpson Lake Dam, located in Nettleton, Missouri, was completed in 1950 and serves as a crucial structure for debris control along the TR-Kettle Creek.
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Summary
This private dam, with a height of 20 feet and a storage capacity of 86 acre-feet, also has multiple purposes including fire protection, stock or small fish pond, and recreation. The dam is primarily made of earth with a buttress core type and is classified as having low hazard potential.
Despite not being regulated by the state, Byron Simpson Lake Dam plays a vital role in managing water resources in Caldwell County. With a normal storage capacity of 53 acre-feet and a surface area of 8 acres, the dam provides essential protection against debris and offers recreational opportunities for the local community. The dam's condition assessment is currently not rated, but its low hazard potential underscores its importance in maintaining water quality and safety in the area.
Year Completed |
1950 |
Dam Height |
20 |
River Or Stream |
TR-KETTLE CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
115 |
Nid Storage |
86 |
Structural Height |
20 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Shoal Creek Near Braymer Mo
|
0cfs |
Grand River Near Gallatin
|
61cfs |
Grand River At Chillicothe
|
361cfs |
Thompson River At Trenton
|
152cfs |
Medicine Creek Near Laredo
|
18cfs |
Crooked River Near Richmond
|
3cfs |
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.
Byron Simpson Lake Dam