SNOFLO


HUMBOLDT MILLDAM

RESERVOIR LEVELS
Soil Dam West Fork Des Moines River
May 13, 2025


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Humboldt Milldam, located in Humboldt, Iowa, along the West Fork Des Moines River, is a gravity dam primarily used for recreation. Built in 1912, the dam stands at a height of 13 feet and spans 460 feet in length, with a storage capacity of 3,071 acre-feet. Although the dam is classified as having a low hazard potential, it is regulated by the Iowa Department of Natural Resources and undergoes regular inspections to ensure its safety and integrity.

Despite its age, Humboldt Milldam has not been rated for its current condition, indicating a need for further assessment and potentially maintenance or upgrades. The dam's spillway is uncontrolled, and its risk assessment is moderate, with a DSAC risk level of 3. While the dam serves as a popular recreational spot in the area, with a surface area of 470 acres, its risk management measures and emergency action plan readiness are unclear, highlighting areas for improvement to enhance public safety and environmental protection surrounding the dam.

In the realm of water resource and climate enthusiasts, Humboldt Milldam presents an intriguing case study for the intersection of historic infrastructure, recreational use, and risk management in the face of changing environmental conditions. As discussions around dam safety and resilience continue to evolve, Humboldt Milldam stands as a reminder of the ongoing need for proactive maintenance and planning to ensure the long-term sustainability of water resources and infrastructure in the region.

Year_Completed 1912
Dam_Height 13
River_Or_Stream WEST FORK DES MOINES RIVER
Dam_Length 460
Primary_Dam_Type Gravity
Surface_Area 470
Drainage_Area 2256
Nid_Storage 3071
Hazard_Potential Low
Foundations Soil
Nid_Height 13
       

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