East Fork Grand River Watershed Site D-62 Reservoir Report
Last Updated: December 15, 2025
Situated in the picturesque East Fork Grand River Watershed in Ringgold County, Iowa, Site D-62 is a crucial infrastructure designed for grade stabilization.
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Summary
Owned and regulated by the local government with oversight from the Iowa Department of Natural Resources, this earth dam stands at a height of 21 feet and spans 445 feet in length, with a storage capacity of 57 acre-feet. Completed in 2002, the dam serves to control and manage water flow in Tr- South Creek, offering protection against potential flooding events while also supporting the conservation of soil and water resources in the region.
With a low hazard potential and a moderate risk assessment score of 3, Site D-62 is deemed as a reliable structure for water management within the watershed. The dam, designed by USDA NRCS, features an uncontrolled spillway and a surface area of 3.2 acres, contributing to the overall health and sustainability of the ecosystem. While the condition assessment is currently not rated, ongoing inspections and maintenance ensure the continued functionality and safety of the dam for the community. As a part of the larger water resource management strategy, Site D-62 plays a vital role in mitigating risks associated with water flow and enhancing the resilience of the watershed to climate variability and extreme weather events.
Year Completed |
2002 |
Dam Length |
445 |
Dam Height |
21 |
River Or Stream |
Tr- South Creek |
Primary Dam Type |
Earth |
Surface Area |
3.2 |
Drainage Area |
0.16 |
Nid Storage |
57 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
21 |
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-62