East Fork Grand River Watershed Site A-104 Reservoir Report
Last Updated: December 14, 2025
East Fork Grand River Watershed Site A-104, located in Ringgold County, Iowa, is a flood risk reduction structure designed by the USDA NRCS and completed in 2007.
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Summary
This Earth-type dam stands at a height of 29 feet and spans 475 feet, with a storage capacity of 43 acre-feet. The primary purpose of this dam is to mitigate flood risks in the area, with a hazard potential rated as low and a moderate risk assessment score of 3.
Situated along the Tr-East Fk Grand River, this site plays a crucial role in managing water flow and protecting the surrounding environment from potential flood damages. Despite not being regulated or inspected by the state, the dam serves as a vital infrastructure for the local community in State of Missouri. With a spillway width of 20 feet and uncontrolled spillway type, the dam is equipped to handle excess water during heavy rainfall events, ensuring the safety and security of the area.
Although the condition assessment of East Fork Grand River Watershed Site A-104 is currently not rated, its strategic location and design make it a key asset in flood risk management for the region. With its low hazard potential and moderate risk assessment, this dam exemplifies the importance of proactive water resource management and climate resilience efforts in safeguarding communities against potential natural disasters.
Year Completed |
2007 |
Dam Length |
475 |
Dam Height |
29 |
River Or Stream |
Tr-East Fk Grand R |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
0.13 |
Nid Storage |
43 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
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 Fork Grand River Watershed Site A-104