Jaynes Dam Reservoir Report
Nearby: Crystal Blue Lake Dam Bowman Dam
Last Updated: December 23, 2025
Jaynes Dam, located in Ashburn, Missouri, serves as a crucial structure for debris control along the TR Salt River.
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Summary
Completed in 1956, this earth dam stands at a height of 30 feet and has a storage capacity of 112 acre-feet. While its primary purpose is debris control, it also supports fire protection, stock or small fish pond, and recreational activities in the area. The dam has a low hazard potential and its condition assessment is currently not rated.
Owned privately, Jaynes Dam is not regulated or permitted by the state, and does not fall under state jurisdiction for inspection or enforcement. The dam does not have an Emergency Action Plan (EAP) prepared or updated, and it is not clear if it meets guidelines for such plans. Despite these gaps, the dam continues to serve its intended purposes effectively, offering a vital resource for water management and protection in the region.
Year Completed |
1956 |
Dam Height |
30 |
River Or Stream |
TR SALT RIVER |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
131 |
Nid Storage |
112 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bear Creek At Hannibal
|
2cfs |
Salt River Near New London
|
62cfs |
Salt River Near Center
|
45cfs |
Spencer Cr. Bl Plum Cr. Nr Frankford
|
24cfs |
North River At Palmyra
|
13cfs |
South Fabius River Near Taylor
|
12cfs |
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.
Jaynes Dam