East Fork Grand River Watershed Site B-54 Reservoir Report
Last Updated: December 15, 2025
East Fork Grand River Watershed Site B-54, located in Ringgold County, Iowa, is a crucial flood risk reduction structure designed by the USDA NRCS and completed in 2004.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam stands at a height of 28 feet and spans 615 feet, providing a storage capacity of 137 acre-feet to mitigate potential flooding in the area. With a low hazard potential and a moderate risk assessment rating, this dam plays a significant role in safeguarding the surrounding community from potential water-related disasters.
Managed by the Iowa Department of Natural Resources, this state-regulated site is equipped with state permitting, inspection, and enforcement mechanisms to ensure its structural integrity and operational efficiency. The dam's primary purpose is flood risk reduction, serving to protect the TR- East Fork Grand River and its adjacent areas from excessive water flow during periods of high precipitation. Despite not being rated for its condition assessment, the East Fork Grand River Watershed Site B-54 remains a vital component of the local water resource management infrastructure.
With a serene surface area of 7 acres and a drainage area of 0.44 square miles, this site plays a crucial role in maintaining the hydrological balance of the region. Although not currently subject to a formal Emergency Action Plan or inundation maps, the East Fork Grand River Watershed Site B-54 stands as a testament to the collaborative efforts of local government and federal agencies in addressing water resource and climate challenges. As climate change continues to impact water availability and quality, the importance of such structures in ensuring community resilience becomes increasingly evident.
Year Completed |
2004 |
Dam Length |
615 |
Dam Height |
28 |
River Or Stream |
TR- EAST FORK GRAND RIVER |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
0.44 |
Nid Storage |
137 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
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 B-54