March Dam Reservoir Report

Last Updated: January 2, 2026

March Dam, located in Adair, Missouri, serves as a vital structure for grade stabilization along the TR-Bee Branch river.


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Summary

Built in 2007 by the USDA NRCS, this private-owned Earth dam stands at 31 feet tall with a length of 340 feet, providing a normal storage capacity of 13.9 acre-feet. Despite its uncontrolled spillway and outlet gates, the dam has a low hazard potential and has not been rated for condition assessment.

With a moderate risk assessment rating, March Dam has not been inspected since 2007, presenting a potential area of concern for water resource and climate enthusiasts. The dam's primary purpose of grade stabilization underscores its critical role in controlling water flow along the TR-Bee Branch. Located in a remote area near Rutledge, the dam's proximity to the Rock Island District and its association with the Natural Resources Conservation Service highlights its significance in regional water resource management.

As an Earth dam with stone core types and soil foundations, March Dam stands as a testament to engineering excellence in balancing water conservation and environmental protection. With a drainage area of 19.2 square miles and a maximum discharge of 23 cubic feet per second, the dam plays a crucial role in maintaining ecological balance in the region. For those interested in water resource management and climate resilience, March Dam represents a fascinating case study in sustainable infrastructure development in rural Missouri.

Year Completed

2007

Dam Length

340

Dam Height

26

River Or Stream

TR-BEE BRANCH

Primary Dam Type

Earth

Surface Area

1

Hydraulic Height

24

Drainage Area

19.2

Nid Storage

19.7

Structural Height

31

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

31
       
Seasonal Comparison

Weather Forecast

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.