SNOFLO



COOPERS FARM SEDIMENT STORAGE DAM

RESERVOIR LEVELS
Soil Dam Lake Marie - Offstream
April 4, 2025


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The Coopers Farm Sediment Storage Dam, located in Antioch, Illinois, serves as a crucial piece of infrastructure for debris control along the offstream of Lake Marie. Owned by the state of Illinois and regulated by the Illinois Department of Natural Resources, this earth dam stands at a height of 13 feet and spans a length of 2500 feet. With a maximum storage capacity of 6 acre-feet, the dam plays a key role in managing sediment and debris in the area.

Constructed by HDR, the Coopers Farm Sediment Storage Dam features a controlled spillway with a width of 8 feet and uncontrolled outlet gates. Despite its high hazard potential, the dam has not undergone a recent condition assessment, highlighting the need for regular inspection and maintenance. With a very high risk assessment rating, it is essential for emergency action plans and risk management measures to be in place to ensure the safety and effectiveness of this important structure in protecting the surrounding environment and water resources.

As an enthusiast of water resources and climate, the Coopers Farm Sediment Storage Dam offers a fascinating case study in debris control and sediment management. With its strategic location and design features, this dam plays a vital role in protecting the local ecosystem and waterways. However, the high hazard potential and lack of recent condition assessment underscore the importance of ongoing monitoring and maintenance to ensure the continued functionality and safety of this critical infrastructure.

Dam_Height 13
River_Or_Stream LAKE MARIE - OFFSTREAM
Dam_Length 2500
Primary_Dam_Type Earth
Drainage_Area 0.1
Nid_Storage 6
Outlet_Gates Uncontrolled
Hazard_Potential High
Foundations Soil
Nid_Height 13
       

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