Jones Dam Reservoir Report
Nearby: Whitetail East Dam Phantom Lake Dam
Last Updated: December 12, 2025
Jones Dam, located in Unionville, Missouri, along the TR-SHOAL CREEK, serves as a crucial Grade Stabilization structure on private land.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1996, this Earth-type dam stands at a height of 34.9 feet and boasts a storage capacity of 30 acre-feet, with a normal storage level of 17 acre-feet. The dam's primary purpose is to prevent erosion and maintain stability in the area.
Despite being owned privately, Jones Dam falls under the jurisdiction of the Rock Island District of the US Army Corps of Engineers. With a low hazard potential and a moderate risk assessment rating, the dam is considered structurally sound and well-maintained. The spillway, though uncontrolled, is designed to handle a maximum discharge of 54 cubic feet per second, ensuring the safety of the surrounding area in case of heavy rainfall or flooding.
Although not currently regulated or inspected by state agencies, Jones Dam remains a vital infrastructure for water resource management in Putnam County. With its strategic location and efficient design, this dam plays a key role in protecting the environment and enhancing the resilience of the local community against climate-related challenges.
Year Completed |
1996 |
Dam Length |
234 |
Dam Height |
34.9 |
River Or Stream |
TR-SHOAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
29 |
Drainage Area |
12.8 |
Nid Storage |
30 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Jones Dam