East Fork Grand River Watershed Site D-51 Reservoir Report
Last Updated: December 12, 2025
East Fork Grand River Watershed Site D-51 is a grade stabilization dam located in Ringgold County, Iowa.
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Summary
Built in 2002 by the USDA NRCS, this earth dam stands at a height of 19 feet and spans a length of 463 feet, providing a storage capacity of 61 acre-feet and serving as a critical structure for flood control and erosion prevention in the area. The dam is regulated by the Iowa DNR and undergoes state permitting, inspection, and enforcement to ensure its functionality and safety.
Situated along the Tr- Lotts Creek, this dam plays a vital role in managing water resources and protecting the surrounding environment. With a low hazard potential and a moderate risk assessment rating, East Fork Grand River Watershed Site D-51 is part of the larger effort to sustainably manage water resources in the region. Despite not being rated for its condition, the dam serves as an important infrastructure for the local community and contributes to the overall resilience of the watershed against the impacts of climate change and extreme weather events.
Year Completed |
2002 |
Dam Length |
463 |
Dam Height |
19 |
River Or Stream |
Tr- Lotts Creek |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
0.17 |
Nid Storage |
61 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
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 D-51