East Fork Of Grand River Watershed Site A-93 Reservoir Report
Last Updated: December 13, 2025
East Fork of Grand River Watershed Site A-93 is a critical structure located in Ringgold, Iowa, designed by NRCS to primarily focus on flood risk reduction.
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Summary
Completed in 2008, this earth dam stands at a height of 23 feet and spans a length of 582 feet, with a storage capacity of 65 acre-feet. With a low hazard potential and moderate risk assessment rating, the dam serves to protect the surrounding area from potential flooding events, ensuring the safety and security of the community.
Managed by the local government and regulated by the Iowa DNR, East Fork of Grand River Watershed Site A-93 plays a vital role in the region's water resource management. Its location, tributary to the East Fork of Grand River, highlights its significance in the larger watershed ecosystem. With state permitting, inspection, and enforcement in place, the dam operates efficiently to fulfill its purpose and safeguard the drainage area of 0.19 square miles, demonstrating its commitment to flood risk reduction and environmental protection.
As part of the Rock Island District and situated in State of MO city, East Fork of Grand River Watershed Site A-93 stands as a testament to collaborative efforts in water resource management. With its uncontrolled spillway type and soil foundation, the dam exemplifies the importance of strategic infrastructure in mitigating flood risks and ensuring the resilience of the community in the face of climate challenges. The dam's construction and operation reflect a proactive approach to water resource management, exemplifying best practices for sustainable development and climate adaptation in the region.
Year Completed |
2008 |
Dam Length |
582 |
Dam Height |
23 |
River Or Stream |
Trib to East Fork of Grand River |
Primary Dam Type |
Earth |
Surface Area |
4.2 |
Drainage Area |
0.19 |
Nid Storage |
65 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
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 Of Grand River Watershed Site A-93