Davis Subwatershed 19-2044 Reservoir Report
Last Updated: December 13, 2025
Davis Subwatershed 19-2044 is a vital water resource in Woodbury, Iowa, managed by the local government with assistance from the USDA NRCS.
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Summary
This earth dam, completed in 1958, serves multiple purposes including fire protection, stock watering, and small fish pond maintenance. With a height of 52 feet and a length of 500 feet, the dam has a storage capacity of 38 acre-feet and covers a surface area of 1.3 acres. It is regulated by the Iowa Department of Natural Resources and is inspected regularly to ensure compliance with state regulations.
Situated on the TR-Cottonwood Hollow river, Davis Subwatershed 19-2044 plays a crucial role in flood risk reduction in the area. Despite its low hazard potential, the dam is classified as having a moderate risk level, indicating the importance of ongoing risk management measures. The dam's condition is currently not rated, and further assessments are needed to determine its structural integrity. While the dam has not been modified in recent years, it remains a key infrastructure for water resource management in the region, highlighting the importance of continued monitoring and maintenance to ensure its effectiveness in safeguarding the local community and environment.
Year Completed |
1958 |
Dam Length |
500 |
Dam Height |
52 |
River Or Stream |
TR-COTTONWOOD HOLLOW |
Primary Dam Type |
Earth |
Surface Area |
1.3 |
Drainage Area |
0.18 |
Nid Storage |
38 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
52 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Little Sioux River At Correctionville
|
327cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Missouri River At Decatur
|
15500cfs |
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 19-2044