Davis Subwatershed M-14077 Reservoir Report
Last Updated: December 13, 2025
Davis Subwatershed M-14077 is a local government-owned earth dam located in Woodbury County, Iowa, specifically in the city of Turin.
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Summary
Completed in 1958 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a height of 34 feet and a storage capacity of 131 acre-feet, this dam covers a surface area of 7.1 acres and drains a watershed area of 0.53 square miles along the Cottonwood Hollow river or stream.
Managed by the Iowa Department of Natural Resources, Davis Subwatershed M-14077 has a low hazard potential and is currently rated as not assessed for condition. Despite being uncontrolled, the spillway of this dam ensures the safety of the surrounding area in case of overflow. As a crucial infrastructure for water resource management, this dam contributes to the local ecosystem and provides essential services to the community, while being subject to regular state inspection, permitting, and enforcement to ensure its integrity and functionality for years to come.
Year Completed |
1958 |
Dam Length |
200 |
Dam Height |
34 |
River Or Stream |
COTTONWOOD HOLLOW |
Primary Dam Type |
Earth |
Surface Area |
7.1 |
Drainage Area |
0.53 |
Nid Storage |
131 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Little Sioux River Near Turin
|
1040cfs |
Missouri River At Decatur
|
15500cfs |
Little Sioux River At Correctionville
|
327cfs |
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.
Davis Subwatershed M-14077