Sloan Dam Reservoir Report
Nearby: Johnson Dam Mc Clure Dam
Last Updated: December 6, 2025
Sloan Dam in Iowa, completed in 1975, serves multiple purposes including fire protection, stock and small fish pond, as well as recreation.
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Summary
Managed by a private entity, the dam stands at 31 feet in height, with a length of 270 feet and a storage capacity of 48 acre-feet. The dam, primarily constructed of earth, is regulated by the Iowa Department of Natural Resources and has a low hazard potential with a moderate risk assessment score of 3.
Located in Davis County, Iowa, Sloan Dam is situated along the TR-Des Moines river and falls under the jurisdiction of the Rock Island District. The dam, designed by the USDA NRCS, has not been rated for its condition but is subject to regular state inspections and enforcement measures. Although categorized as having a moderate risk, the dam has not had an Emergency Action Plan (EAP) prepared or updated, highlighting potential areas for improvement in risk management.
Water resource and climate enthusiasts interested in Sloan Dam may find its multi-purpose design and regulatory oversight intriguing. With a focus on fire protection, stock pond management, and recreational activities, Sloan Dam plays a vital role in water resource management in the region. As efforts continue to enhance risk assessment and emergency preparedness, the dam serves as a focal point for collaboration between private owners, regulatory agencies, and the local community to ensure the safety and sustainability of its operations.
Year Completed |
1975 |
Dam Length |
270 |
Dam Height |
31 |
River Or Stream |
TR-DES MOINES |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.16 |
Nid Storage |
48 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Des Moines River At Ottumwa
|
1090cfs |
Fox River At Bloomfield
|
7cfs |
Des Moines River At Keosauqua
|
1800cfs |
North Skunk River Near Sigourney
|
97cfs |
Cedar Creek Near Oakland Mills
|
10cfs |
Chariton River Near Moulton
|
34cfs |
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.
Sloan Dam