Vena Clapham Reservoir Report
Last Updated: December 12, 2025
Vena Clapham is a privately owned earth dam located in Princeton, Missouri, specifically in Mercer County.
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Summary
Built in 1999 by the USDA NRCS, this dam stands at 28 feet tall and spans 410 feet in length, with a storage capacity of 20 acre-feet and a normal storage level of 14 acre-feet. Situated on the TR-EAST HONEY river or stream, Vena Clapham serves a primary purpose of "Other" and is categorized as a low hazard potential structure with a moderate risk assessment rating.
The dam features an uncontrolled spillway with a width of 10 feet and has not been modified since its completion. While it does not have any outlet gates, it boasts a stone core and soil foundation. Despite its age, the condition of Vena Clapham has not been officially rated, and it has not undergone recent inspections or maintenance. Additionally, there are no emergency action plans in place for this structure, highlighting potential areas for improvement in risk management and mitigation strategies.
For water resource and climate enthusiasts, Vena Clapham presents an intriguing case study in dam infrastructure and management. With its scenic location and unique design features, this privately owned dam offers opportunities for further research and assessment to ensure its continued safety and functionality in the face of changing environmental conditions and potential risks.
Year Completed |
1999 |
Dam Length |
410 |
Dam Height |
28 |
River Or Stream |
TR-EAST HONEY |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
27 |
Drainage Area |
85 |
Nid Storage |
20 |
Structural Height |
28 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Thompson River At Trenton
|
143cfs |
Medicine Creek Near Laredo
|
20cfs |
Thompson River At Davis City
|
22cfs |
East Fork Big Creek Near Bethany
|
4cfs |
Locust Creek Near Linneus
|
24cfs |
Grand River Near Gallatin
|
76cfs |
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.
Vena Clapham