Little Sni-A-Bar Wtrsd #27 Dam Reservoir Report
Last Updated: December 10, 2025
Situated in Lafayette, Missouri, the Little Sni-A-Bar Watershed #27 Dam, also known as Little Sni-A-Bar Wtrsd #27 Dam, was completed in 1977 with the primary purpose of flood risk reduction.
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Summary
Designed by the USDA NRCS, this earth dam stands at a height of 35 feet and has a length of 390 feet. It has a maximum storage capacity of 132 acre-feet and serves a drainage area of 576 square miles.
Managed by the local government, the dam is regulated, inspected, and enforced by the Dam and Reservoir Safety Program in Missouri. Despite its low hazard potential, the dam's condition is deemed satisfactory as of the last assessment in 2007. With a risk assessment rating of moderate, the dam is equipped with an uncontrolled spillway and has a surface area of 11 acres. The surrounding area is protected from debris and potential flooding, making it a crucial asset in water resource management and climate resilience efforts.
Year Completed |
1977 |
Dam Length |
390 |
Dam Height |
35 |
River Or Stream |
TR-LITTLE SNIABAR CR |
Primary Dam Type |
Earth |
Surface Area |
11 |
Drainage Area |
576 |
Nid Storage |
132 |
Structural Height |
35 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
Seasonal Comparison
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Nearby Streamflow Levels
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.
Little Sni-A-Bar Wtrsd #27 Dam