Reed Subwatershed Sta 46+80 #3 Reservoir Report
Last Updated: December 13, 2025
Reed Subwatershed Station 46+80 #3 is a crucial water resource infrastructure located in Monona, Iowa, specifically in the city of Titonic.
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Summary
Owned by the local government and regulated by the Iowa Department of Natural Resources, this earth dam was completed in 1966 with a primary purpose of fire protection, stock, or small fish pond, as well as flood risk reduction. With a dam height of 44 feet and a storage capacity of 156 acre-feet, it serves an important role in managing water resources in the area.
This dam on TR-Walnut Creek has a low hazard potential and a moderate risk assessment rating, indicating its importance for mitigating potential flooding and protecting the surrounding community. With a drainage area of 0.59 square miles and a surface area of 8.3 acres, this structure plays a vital role in water management in the region. While its condition assessment is currently not rated, the dam continues to provide essential functions for water storage and flood control in the area.
Managed by the Natural Resources Conservation Service, Reed Subwatershed Station 46+80 #3 ensures the safety and well-being of the local community by providing critical services such as fire protection, stock watering, and flood risk reduction. Its presence on TR-Walnut Creek contributes to the overall water resource management efforts in Monona, Iowa, highlighting the importance of sustainable infrastructure for climate resilience and water security in the region.
Year Completed |
1966 |
Dam Length |
282 |
Dam Height |
44 |
River Or Stream |
TR-WALNUT CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.3 |
Drainage Area |
0.59 |
Nid Storage |
156 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
44 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
West Fork Ditch At Hornick
|
80cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Missouri River At Decatur
|
15500cfs |
Soldier River At Pisgah
|
112cfs |
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.
Reed Subwatershed Sta 46+80 #3