SNOFLO
 

       

CUSTER TWP 15

RESERVOIR LEVELS
March 23, 2025


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Custer Twp 15, located in Lyon County, Minnesota, is a vital flood risk reduction structure along the Cottonwood River. This rockfill dam stands at a height of 27 feet and has a storage capacity of 110 acre-feet, serving as a key defense against potential flooding in the area. Despite its significance in safeguarding the community, the dam's condition assessment is rated as poor, highlighting the need for maintenance and improvements to ensure its continued effectiveness.

Managed by the local government and regulated by the Minnesota Department of Natural Resources, Custer Twp 15 plays a crucial role in protecting the surrounding area from flood hazards. With a low hazard potential but a very high risk assessment rating, there is an urgency to address the dam's poor condition and implement necessary risk management measures. The dam lacks an Emergency Action Plan (EAP) and updated inundation maps, emphasizing the importance of proactive planning and preparedness in the face of potential emergencies.

As water resource and climate enthusiasts, it is essential to recognize the significance of structures like Custer Twp 15 in mitigating flood risks and protecting communities. By advocating for proper maintenance, inspections, and risk management measures, we can ensure the continued resilience of these crucial infrastructure assets in the face of evolving climatic challenges and water resource management needs.

Dam_Height 27
River_Or_Stream COTTONWOOD RIVER-TR
Dam_Length 280
Primary_Dam_Type Rockfill
Drainage_Area 6
Nid_Storage 110
Structural_Height 27
Outlet_Gates None
Hazard_Potential Low
Foundations Unlisted/Unknown
Nid_Height 27
       

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