Little Sni-A-Bar Creek Dam 30 Reservoir Report

Last Updated: December 10, 2025

Little Sni-A-Bar Creek Dam 30, located in Lafayette County, Missouri, is a local government-owned structure designed by the USDA NRCS for grade stabilization purposes.


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Summary

This earth dam stands at a height of 33 feet and has a length of 340 feet, providing storage of 75 acre-feet and serving a drainage area of 210 acres. Completed in 1977, the dam has a spillway width of 20 feet and a maximum discharge capacity of 128 cubic feet per second, with a low hazard potential rating.

Despite being unregulated by the state, Little Sni-A-Bar Creek Dam 30 plays a crucial role in managing water resources and preventing erosion in the surrounding area. The structure, with its stone core and soil foundation, serves as a vital component in maintaining the stability of the Little Sni-A-Bar Creek. Its strategic location and design contribute to the overall conservation efforts in the region, showcasing the importance of sustainable water management practices.

As water resource and climate enthusiasts, understanding the significance of structures like Little Sni-A-Bar Creek Dam 30 is essential in promoting responsible stewardship of our natural resources. With its moderate risk assessment rating and low hazard potential, this dam stands as a testament to the collaborative efforts between local government agencies and the USDA NRCS in safeguarding the environment and ensuring the resilience of water infrastructure in Missouri.

Year Completed

1977

Dam Length

340

Dam Height

33

River Or Stream

TR-LITTLE SNI-A-BAR CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

33

Drainage Area

210

Nid Storage

75

Structural Height

35

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

35
       
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.