Dane Ridge Watershed Site D-3-1 Reservoir Report
Last Updated: December 13, 2025
Located in Crawford County, Iowa, the Dane Ridge Watershed Site D-3-1 is a vital water resource managed by the local government and designed by the USDA NRCS.
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Summary
This earth dam, completed in 1971, serves multiple purposes including fire protection, stock, small fish pond, flood risk reduction, and recreation. With a dam height of 44 feet and a storage capacity of 45 acre-feet, the site plays a crucial role in managing water flow and preventing potential hazards in the area.
The dam, situated on the TR-Boyer River, is regulated by the Iowa DNR and undergoes regular inspections, with a low hazard potential and moderate risk assessment. While the dam's condition is currently not rated, its strategic location and design make it a key component in the local water management system. With its controlled spillway and soil foundation, the Dane Ridge Watershed Site D-3-1 is a valuable asset for the community, ensuring both water resource sustainability and safety for residents in the region.
Enthusiasts of water resources and climate will appreciate the significance of the Dane Ridge Watershed Site D-3-1 in preserving the ecological balance and mitigating the impact of extreme weather events. As a part of the comprehensive water management infrastructure in Iowa, this site exemplifies the importance of sustainable practices and proactive measures in safeguarding the environment and protecting communities against potential risks associated with water resources.
Year Completed |
1971 |
Dam Length |
352 |
Dam Height |
44 |
River Or Stream |
TR-BOYER RIVER |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.18 |
Nid Storage |
45 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
44 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Soldier River At Pisgah
|
112cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Boyer River At Logan
|
417cfs |
West Fork Ditch At Hornick
|
80cfs |
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.
Dane Ridge Watershed Site D-3-1