SNOFLO
 


LYNCH DAM

RESERVOIR LEVELS
Soil Dam Tr-Fox River
May 1, 2025


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Lynch Dam, located in Mt. Sterling, Iowa, along the TR-Fox River, was completed in 2013 by the USDA NRCS for flood risk reduction purposes. This privately owned earth dam stands at a height of 22 feet and spans 500 feet, with a storage capacity of 56 acre-feet. The dam serves to control debris, stabilize grades, and reduce flood risks in the area, making it a vital infrastructure for water resource management in Davis County.

Despite its low hazard potential and moderate risk assessment, Lynch Dam has not been rated for its condition assessment. The dam features an uncontrolled spillway with a width of 12 feet and an outlet gate. While the dam is state-regulated and inspected by the Iowa DNR, there is no information available on its maintenance and emergency preparedness measures. The surrounding community should be aware of the dam's presence and its role in protecting against potential flooding events.

Water resource and climate enthusiasts interested in Lynch Dam's construction, design, and impact on the Fox River watershed in Iowa will find this structure an essential piece of infrastructure. With its primary purpose of flood risk reduction, Lynch Dam plays a crucial role in managing water flow and protecting downstream areas from potential inundation. As climate change continues to pose challenges to water resources, understanding the functions and condition of dams like Lynch Dam is essential for sustainable water management in the region.

Year_Completed 2013
Dam_Height 22
River_Or_Stream TR-Fox River
Dam_Length 500
Primary_Dam_Type Earth
Surface_Area 4
Drainage_Area 0.27
Nid_Storage 56
Outlet_Gates Uncontrolled
Hazard_Potential Low
Foundations Soil
Nid_Height 22
       

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