East Yellow Creek L- 27 Reservoir Report
Last Updated: December 24, 2025
East Yellow Creek L-27 is a local government-owned earth dam located in Linn, Missouri.
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Summary
Built in 2001 by the USDA NRCS, this structure serves the primary purpose of flood risk reduction along the TR-East Yellow river or stream. With a height of 24.7 feet and a storage capacity of 83 acre-feet, this dam plays a crucial role in managing water flow and protecting the surrounding area from potential flooding.
The dam's low hazard potential and moderate risk assessment make it a vital asset for the community, despite not being regulated or inspected by state agencies. With a spillway width of 24 feet and a maximum discharge of 161 cubic feet per second, East Yellow Creek L-27 is equipped to handle significant water flow during periods of heavy rainfall. While the condition assessment is not rated, the structure's design and construction by the Natural Resources Conservation Service ensure its reliability in mitigating flood risks for the region.
Water resource and climate enthusiasts will appreciate the engineering details of East Yellow Creek L-27, including its stone core and soil foundation. The dam's strategic location and dimensions, spanning 515 feet in length and covering a drainage area of 140.8 square miles, demonstrate a comprehensive approach to flood risk reduction. As a key component of the local water management system, this earth dam serves as a testament to effective collaboration between federal agencies and local governments in safeguarding communities against natural disasters.
Year Completed |
2001 |
Dam Length |
515 |
Dam Height |
24.7 |
River Or Stream |
TR-EAST YELLOW |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
22 |
Drainage Area |
140.8 |
Nid Storage |
83 |
Structural Height |
24 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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 L- 27