Emil Jasper Trust Reservoir Report

Last Updated: December 11, 2025

Emil Jasper Trust, located in Franklin County, Missouri, is a privately owned earth dam designed by the USDA NRCS for grade stabilization purposes.


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Summary

Completed in 1999, this dam stands at a height of 28 feet and has a hydraulic height of 26 feet, with a length of 400 feet. It serves the primary purpose of grade stabilization, with secondary benefits including recreation opportunities.

With a low hazard potential and a moderate risk assessment rating, Emil Jasper Trust is a key structure in the region for managing water resources and protecting against potential flooding. The dam has a maximum storage capacity of 27 acre-feet and covers a surface area of 6 acres, with a drainage area of 172.8 square miles. Despite being uncontrolled, the spillway width of 10 feet helps regulate water flow downstream.

Although not currently rated for condition assessment, Emil Jasper Trust plays a crucial role in water management for the area. With its strategic location along TR-UNNAMED to the Missouri River, this dam serves as a vital infrastructure for maintaining water quality, mitigating erosion, and providing recreational opportunities for the local community.

Year Completed

1999

Dam Length

400

Dam Height

28

River Or Stream

TR-UNNAMED TO MISSOURI RIVER

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

26

Drainage Area

172.8

Nid Storage

27

Structural Height

32

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

32
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.