SNOFLO


ROUGH DRAW

RESERVOIR LEVELS
Soil Dam Frog Creek
May 8, 2025


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Rough Draw is a federal-owned structure located in Weston, Wyoming, along Frog Creek. Built in 1992 by the Forest Service, this Earth-type dam stands at 33 feet tall and spans 620 feet in length, primarily serving as a Fish and Wildlife Pond while also aiding in Flood Risk Reduction. With a storage capacity of 16 acre-feet and a drainage area of 0.66 square miles, Rough Draw has a low hazard potential and is considered to have a moderate risk level.

The dam's spillway, which is uncontrolled and 50 feet wide, can handle a maximum discharge of 5620 cubic feet per second. While the structure is not rated for condition assessment as of now, it undergoes inspections every 10 years, with the last one conducted in 2011. Rough Draw's emergency action plan and risk management measures are not specified, but it remains under the regulatory oversight of the State of Wyoming's SEO agency, ensuring compliance with state permitting, inspection, and enforcement requirements.

Despite its unassuming hazard potential and moderate risk level, Rough Draw plays a crucial role in supporting the local ecosystem and helping manage flood risks in the area. As an Earth-type dam with a focus on enhancing fish and wildlife habitats, this structure represents a harmonious blend of ecological conservation and disaster mitigation efforts, making it a significant asset for water resource and climate enthusiasts to study and appreciate in the beautiful landscape of Edgemont, SD.

Year_Completed 1992
Dam_Height 33
River_Or_Stream FROG CREEK
Dam_Length 620
Primary_Dam_Type Earth
Surface_Area 2
Hydraulic_Height 21
Drainage_Area 0.66
Nid_Storage 16
Structural_Height 33
Outlet_Gates Uncontrolled
Hazard_Potential Low
Foundations Soil
Nid_Height 33
       

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