Arcola Subwatershed Site 1-5084 Reservoir Report
Last Updated: December 14, 2025
Arcola Subwatershed Site 1-5084, located in Turin, Iowa, is a local government-owned earth dam designed by the USDA NRCS in 1965 for purposes including fire protection, stock, small fish pond, and flood risk reduction.
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Summary
This dam stands at a height of 28 feet and has a storage capacity of 22 acre-feet. It is situated along the TR- Little Sioux River and covers a surface area of 1 acre, serving as a valuable resource for water management in the Monona County area.
Managed by the Iowa DNR, Arcola Subwatershed Site 1-5084 has a low hazard potential and a moderate risk assessment level. With a drainage area of 0.21 square miles, this dam plays a crucial role in mitigating flood risks and ensuring water availability for various purposes. While its condition assessment is currently not rated, the dam's structure and functionality are regularly inspected, meeting state regulatory requirements for operation, inspection, and enforcement.
As part of the Omaha District, this dam contributes to the overall water resource management efforts in the region, offering a reliable water source for fire protection, livestock, and recreational fishing activities. With its strategic location and design, Arcola Subwatershed Site 1-5084 exemplifies the importance of sustainable water infrastructure for climate resilience and community well-being in Monona, Iowa.
Year Completed |
1965 |
Dam Height |
28 |
River Or Stream |
TR- LITTLE SIOUX RIVER |
Primary Dam Type |
Earth |
Surface Area |
1 |
Drainage Area |
0.21 |
Nid Storage |
22 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Maple River At Mapleton
|
323cfs |
Soldier River At Pisgah
|
112cfs |
Missouri River At Decatur
|
15500cfs |
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.
Arcola Subwatershed Site 1-5084