Dane Ridge Watershed Site D-1-5 Reservoir Report

Last Updated: December 13, 2025

Dane Ridge Watershed Site D-1-5 is a crucial water resource management site located in Crawford County, Iowa.


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Summary

Managed by the local government and designed by the USDA NRCS, this site serves multiple purposes including fire protection, stock, and small fish pond, flood risk reduction, and recreation. The dam at this site, completed in 1978, stands at 39 feet high with a length of 500 feet, providing a storage capacity of 300 acre-feet and covering a surface area of 14.3 acres.

With a drainage area of 3.12 square miles, Dane Ridge Watershed Site D-1-5 is regulated by the Iowa DNR and is equipped with an uncontrolled spillway. The risk assessment for this site is moderate, with a low hazard potential. While the condition assessment is currently not rated, the site meets state permitting, inspection, and enforcement requirements. This site plays a crucial role in water management within the region, highlighting the importance of sustainable water resource practices in the face of changing climate conditions.

Year Completed

1978

Dam Length

500

Dam Height

39

River Or Stream

TR-WELSH CREEK GULLY D-1

Primary Dam Type

Earth

Surface Area

14.3

Drainage Area

3.12

Nid Storage

300

Hazard Potential

Low

Foundations

Soil

Nid Height

39
       
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.