East Yellow Creek B- 31 Reservoir Report
Last Updated: December 16, 2025
East Yellow Creek B-31 is a local government-owned earth dam located in Linn, Missouri, with a primary purpose of flood risk reduction.
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Summary
Designed by USDA NRCS and completed in 2001, this structure stands at 26 feet high with a hydraulic height of 24 feet and a length of 770 feet. It has a storage capacity of 165 acre-feet and serves a drainage area of 25.6 square miles. The dam's spillway type is uncontrolled with a width of 40 feet, and it has a low hazard potential with a moderate risk assessment rating.
Despite not being regulated or inspected by the state, East Yellow Creek B-31 has not been rated for its condition assessment and lacks Emergency Action Plan (EAP) preparedness. The dam's structure is composed of stone core types on a soil foundation, with no outlet gates or associated structures. With a maximum discharge capacity of 263 cubic feet per second, this dam plays a crucial role in managing floodwaters and protecting the surrounding area from inundation. The risk management measures and guidelines for emergency response at this site are currently unspecified, indicating a potential area for improvement in the future.
Year Completed |
2001 |
Dam Length |
770 |
Dam Height |
26 |
River Or Stream |
TR-EAST YELLOW |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
24 |
Drainage Area |
25.6 |
Nid Storage |
165 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
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.
East Yellow Creek B- 31