East Fork Big Cr Watershed Site E-3 Reservoir Report
Last Updated: December 11, 2025
Located in Decatur County, Iowa, the East Fork Big Cr Watershed Site E-3 is a key site for water resource and climate enthusiasts.
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Summary
Managed by the USDA NRCS and owned by the local government, this site serves multiple purposes including fire protection, stock maintenance, and small fish pond support. Completed in 1995, the earth dam at this site stands at 18 feet tall and spans 630 feet in length, with a storage capacity of 53 acre-feet.
With a drainage area of 0.16 square miles and a surface area of 3.5 acres, this site plays a crucial role in flood risk reduction for the surrounding area. While the dam's hazard potential is rated as low, a moderate risk assessment score indicates the need for ongoing monitoring and risk management measures. The state regulatory agency, Iowa DNR, oversees the permitting, inspection, and enforcement of regulations at this site, ensuring its compliance with state standards.
The East Fork Big Cr Watershed Site E-3 is a valuable asset in the region, providing essential water management functions and ecological support. As climate change continues to impact water resources, this site's role in flood protection and habitat preservation will become increasingly important for the local community and surrounding environment.
Year Completed |
1995 |
Dam Length |
630 |
Dam Height |
18 |
River Or Stream |
TR- EAST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
3.5 |
Drainage Area |
0.16 |
Nid Storage |
53 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
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 Big Cr Watershed Site E-3