East Yellow Creek A-100 Reservoir Report
Last Updated: December 22, 2025
East Yellow Creek A-100, located in Rothville, Missouri, is a vital flood risk reduction structure designed by the USDA NRCS in 1999.
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Summary
This earth dam stands at a height of 28 ft and spans 540 ft in length, with a storage capacity of 361 acre-feet. The primary purpose of the dam is to mitigate flood risks in the area, serving additional functions such as fire protection, stock or small fish pond, and supporting fish and wildlife habitats.
With a low hazard potential and a moderate risk assessment rating, East Yellow Creek A-100 plays a crucial role in managing water resources in Linn County. The dam features an uncontrolled spillway with a width of 40 ft, ensuring effective water discharge during peak flow events. Despite not being state regulated, the structure has not been rated for its current condition, highlighting the need for ongoing monitoring and maintenance to ensure its effectiveness in flood control.
For water resource and climate enthusiasts, East Yellow Creek A-100 serves as a testament to the importance of sustainable infrastructure in mitigating the impacts of extreme weather events. As part of the Rock Island District's flood risk reduction measures, this dam contributes to the overall resilience of the region, providing essential protection to the local community and ecosystems along TR-East Yellow Creek. Continued assessment and management of this critical structure will be key in safeguarding the area against future flood risks and preserving its environmental integrity for generations to come.
Year Completed |
1999 |
Dam Length |
540 |
Dam Height |
28 |
River Or Stream |
TR-EAST YELLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
27 |
Drainage Area |
64 |
Nid Storage |
361 |
Structural Height |
28 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Locust Creek Near Linneus
|
36cfs |
Long Branch Creek Near Atlanta
|
0cfs |
Chariton River At Novinger
|
102cfs |
East Fork Little Chariton R. Nr Macon
|
11cfs |
Medicine Creek Near Laredo
|
19cfs |
Grand River Near Sumner
|
215cfs |
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 A-100