East Yellow Creek S- 42 Reservoir Report
Last Updated: December 15, 2025
East Yellow Creek S-42 is a flood risk reduction structure located in Rothville, Missouri, along the East Yellow Creek.
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Summary
Built in 1994 by the USDA NRCS, this earth dam stands at a height of 29.3 feet and has a structural height of 32 feet. With a storage capacity of 134 acre-feet, the dam serves to mitigate flooding in the area, providing a vital defense against excess water flow during heavy rainfall events.
Covering a surface area of 9 acres and draining a watershed area of 313.6 square miles, East Yellow Creek S-42 plays a crucial role in managing water resources in Linn County. The dam's spillway, measuring 40 feet in width, serves as an uncontrolled outlet during times of high water levels, ensuring the safety and integrity of the structure. Despite its low hazard potential and moderate risk assessment, the dam's condition remains unrated, highlighting the need for ongoing monitoring and maintenance to uphold its effectiveness in flood risk reduction.
Managed by the local government and situated within the Rock Island District, East Yellow Creek S-42 exemplifies the collaborative effort between state and federal agencies to safeguard communities from the impacts of changing climate patterns. As water resource and climate enthusiasts, understanding the design, purpose, and functionality of structures like East Yellow Creek S-42 is essential in promoting sustainable water management practices and resilience in the face of environmental challenges.
Year Completed |
1994 |
Dam Length |
500 |
Dam Height |
29.3 |
River Or Stream |
EAST YELLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
29 |
Drainage Area |
313.6 |
Nid Storage |
134 |
Structural Height |
32 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
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 S- 42