Marywood Farms Wetland Dam Reservoir Report

Last Updated: December 8, 2025

Marywood Farms Wetland Dam, located in Warren County, Iowa, is a private fish and wildlife pond dam designed by the NRCS and completed in 2007.


°F

°F

mph

Wind

%

Humidity

Summary

Standing at a height of 12 feet and stretching 580 feet in length, this earth dam holds a storage capacity of 146 acre-feet with a surface area of 23.3 acres. The dam serves as a habitat for aquatic life and contributes to the conservation of wildlife in the area.

Managed by the Iowa Department of Natural Resources, the Marywood Farms Wetland Dam is state-regulated and regularly inspected to ensure its structural integrity and compliance with safety standards. With a low hazard potential and a moderate risk assessment rating, the dam poses minimal threat to surrounding areas. While the dam has not been rated for its condition, it continues to serve its primary purpose of providing a habitat for fish and wildlife.

Situated near the Red Rock Reservoir and the TR-South River, the Marywood Farms Wetland Dam plays a vital role in preserving the ecosystem and supporting biodiversity in the region. With its strategic location and purposeful design, the dam stands as a testament to the importance of water resource management and climate resilience in safeguarding our natural environment for future generations.

Year Completed

2007

Dam Length

580

Dam Height

12

River Or Stream

TR- SOUTH RIVER

Primary Dam Type

Earth

Surface Area

23.3

Drainage Area

0.3

Nid Storage

146

Hazard Potential

Low

Foundations

Soil

Nid Height

12
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.