Crawford Creek Subwatershed Site 13-3 Reservoir Report
Last Updated: December 15, 2025
Located in Danbury, Iowa, Crawford Creek Subwatershed Site 13-3 is a local government-owned earth dam designed by the USDA NRCS in 1974.
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Summary
This dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a height of 25 feet and a length of 550 feet, the dam has a normal storage capacity of 16 acre-feet and a drainage area of 1.52 square miles. The dam is regulated by the Iowa DNR and has a low hazard potential with a moderate risk assessment score of 3.
The Crawford Creek Subwatershed Site 13-3 dam on the TR-Maple River is crucial for water resource management in the area, providing essential services for both agricultural and environmental needs. The dam's construction and design by the Natural Resources Conservation Service ensure its effective operation and maintenance over the years. While the dam has not been rated for its condition assessment, its low hazard potential and moderate risk assessment suggest that it is a reliable structure for managing water flow and mitigating flood risks in the region.
Overall, Crawford Creek Subwatershed Site 13-3 is a vital infrastructure for the community, offering protection against fires, supporting livestock and fisheries, and reducing flood risks. With its strategic location and design, this earth dam plays a significant role in water resource management in Ida County, Iowa. As climate change impacts water availability and quality, such structures become increasingly important for ensuring sustainable water management practices in the region.
Year Completed |
1974 |
Dam Length |
550 |
Dam Height |
25 |
River Or Stream |
TR-MAPLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
4.6 |
Drainage Area |
1.52 |
Nid Storage |
99 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Little Sioux River At Correctionville
|
327cfs |
West Fork Ditch At Hornick
|
80cfs |
North Raccoon River Near Sac City
|
312cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
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.
Crawford Creek Subwatershed Site 13-3