East Fork Grand River Watershed Site A-52 Reservoir Report

Last Updated: December 13, 2025

East Fork Grand River Watershed Site A-52 in Iowa is a local government-owned earth dam designed by USDA NRCS for grade stabilization purposes.


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Summary

Completed in 2002, this structure stands at 23 feet high and spans 570 feet in length, with a storage capacity of 56 acre-feet. Situated in Ringgold County, Iowa, this dam helps manage water flow in the Tr- East Fork Grand River, covering a drainage area of 0.16 square miles.

With a low hazard potential and a moderate risk rating, East Fork Grand River Watershed Site A-52 is regulated, permitted, inspected, and enforced by the Iowa Department of Natural Resources. The dam features an uncontrolled spillway and is primarily constructed with soil foundations. While the condition assessment is not rated, the structure has not undergone any modifications since its completion, highlighting its stability and reliability in managing water resources in the area.

Overall, East Fork Grand River Watershed Site A-52 serves as a crucial infrastructure for water resource management in the region, contributing to flood control and grade stabilization along the East Fork Grand River. With its strategic location and design, this dam plays a significant role in maintaining water quality and mitigating potential risks associated with its operation. Climate and water resource enthusiasts can appreciate the sustainable approach taken in managing this vital infrastructure for the benefit of the local community and surrounding environment.

Year Completed

2002

Dam Length

570

Dam Height

23

River Or Stream

Tr- East Fork Grand River

Primary Dam Type

Earth

Surface Area

3.3

Drainage Area

0.16

Nid Storage

56

Hazard Potential

Low

Foundations

Soil

Nid Height

23
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.