SNOFLO
 


HAWK LAKE DAM

RESERVOIR LEVELS
Soil Dam Tr-Twelve Mile Creek
May 6, 2025


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Hawk Lake Dam in Afton, Iowa, is a private dam designed by Stanley Consultants and completed in 1967. The dam serves as a crucial water supply structure for the region, with a storage capacity of 190 acre-feet and a normal storage level of 122 acre-feet. Situated on TR-Twelve Mile Creek, the dam's primary purpose is to provide water for various uses in the area.

With a dam height of 18 feet and a length of 836 feet, Hawk Lake Dam is classified as an Earth dam with a low hazard potential. Although the condition assessment is not rated, the dam is inspected, regulated, and permitted by the Iowa Department of Natural Resources, ensuring its safety and functionality. The risk assessment for the dam is moderate, highlighting the importance of ongoing risk management measures to safeguard the surrounding community and environment.

For water resource and climate enthusiasts, Hawk Lake Dam represents a vital infrastructure supporting water supply needs in Union County, Iowa. The dam's strategic location on TR-Twelve Mile Creek, its significant storage capacity, and adherence to state regulatory standards underscore its importance in ensuring water security for the region. As efforts continue to manage and mitigate risks associated with the dam, its role in sustaining water resources in the area remains critical for the community's well-being and resilience in the face of changing environmental conditions.

Year_Completed 1967
Dam_Height 18
River_Or_Stream TR-TWELVE MILE CREEK
Dam_Length 836
Primary_Dam_Type Earth
Surface_Area 18.3
Drainage_Area 0.6
Nid_Storage 190
Hazard_Potential Low
Foundations Soil
Nid_Height 18
       

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