Clema Dam Reservoir Report

Last Updated: December 8, 2025

Clema Dam, located on the Middle Fork Salt River in Macon, Missouri, was completed in 1997 for the primary purpose of grade stabilization.


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Summary

This privately owned earth dam stands at a height of 26.2 feet and has a hydraulic height of 22 feet, with a total structural height of 30 feet. The dam spans a length of 355 feet and has a storage capacity of 40 acre-feet, providing essential flood control and water resource management for the surrounding area.

Despite its low hazard potential and moderate risk assessment, Clema Dam has not been rated for its condition as of yet. The dam has a spillway type of uncontrolled with a width of 11 feet and has no outlet gates. With a drainage area of 243.2 square miles and a normal storage capacity of 24 acre-feet, Clema Dam plays a crucial role in mitigating flood risks and ensuring the stability of the surrounding ecosystem. Although not under federal regulation or inspection, Clema Dam remains a key asset for water resource and climate enthusiasts in the region.

With its strategic location and vital role in grade stabilization along the Middle Fork Salt River, Clema Dam serves as a significant landmark in Macon, Missouri. The dam's design, construction, and functionality contribute to the overall water management system in the area, providing essential flood control measures and ensuring the safety of nearby communities. While not currently rated for its condition, Clema Dam continues to play a crucial role in safeguarding the environment and enhancing water resource management efforts in the region.

Year Completed

1997

Dam Length

355

Dam Height

26.2

River Or Stream

MIDDLE FORK SALT RIVER

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

22

Drainage Area

243.2

Nid Storage

40

Structural Height

30

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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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.