Dane Ridge Watershed Site D-6 Reservoir Report
Last Updated: December 14, 2025
Dane Ridge Watershed Site D-6 is a key water resource in Crawford, Iowa, managed by local government authorities with oversight from the Iowa Department of Natural Resources.
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Summary
Built in 1978 by the USDA NRCS, this earth dam stands at 31 feet tall and spans 450 feet, offering fire protection and stock watering facilities while also serving as a small fish pond. With a storage capacity of 240 acre-feet and a surface area of 6.8 acres, this dam plays a crucial role in flood risk reduction for the surrounding area.
The dam at Dane Ridge Watershed Site D-6 has a low hazard potential and a moderate risk level, according to assessments. While it is not currently rated for condition, regular state inspections and enforcement ensure its safety and integrity. The dam's uncontrolled spillway and soil foundation indicate a simple yet effective design for managing water flow. With its location along the TR-Welsh Creek Gully D-13, this site is a vital component in the local water management infrastructure, contributing to the overall health and sustainability of the watershed.
As a focal point for water resource and climate enthusiasts, Dane Ridge Watershed Site D-6 offers a glimpse into the intersection of human infrastructure and natural ecosystems. With its primary purpose of fire protection and stock watering, the dam provides essential services to the community while also supporting biodiversity through its role as a small fish pond. The site's history of construction and ongoing management by state and federal agencies underscores the importance of proactive stewardship in ensuring the long-term viability of water resources in the region.
Year Completed |
1978 |
Dam Length |
450 |
Dam Height |
31 |
River Or Stream |
TR-WELSH CREEK GULLY D-13 |
Primary Dam Type |
Earth |
Surface Area |
6.8 |
Drainage Area |
0.3 |
Nid Storage |
240 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Little Sioux River Near Turin
|
1040cfs |
Soldier River At Pisgah
|
112cfs |
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-6