SNOFLO



WISSLER DAM

RESERVOIR LEVELS
Soil Dam Tr-Johnson Creek
April 5, 2025


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Located in Pawnee, Nebraska, the Wissler Dam stands as a vital infrastructure designed primarily for flood risk reduction along the TR-Johnson Creek. Constructed in 1960, this earth dam with a height of 28.3 feet serves to protect the surrounding area from potential flooding events. With a storage capacity of 26.7 acre-feet and a normal storage level of 16.2 acre-feet, the dam covers a surface area of 4 acres and serves a drainage area of 0.12 square miles.

Despite its critical role in flood prevention, the Wissler Dam is currently in poor condition, as indicated by a recent inspection in June 2020. With a hazard potential classified as low, the dam requires attention to ensure its structural integrity and functionality in the face of potential emergencies. Managed by private owners and regulated by the Nebraska Department of Natural Resources, the dam serves as a crucial component of the flood risk management system in the region.

Enthusiasts of water resources and climate resilience will find the Wissler Dam an intriguing case study in the intersection of infrastructure, environmental protection, and public safety. As efforts continue to maintain and improve the dam's condition, its significance in mitigating flood risks and safeguarding communities along the TR-Johnson Creek underscores the importance of sustainable water resource management in the face of changing climate conditions.

Year_Completed 1960
Dam_Height 28.3
River_Or_Stream TR-JOHNSON CREEK
Dam_Length 580
Primary_Dam_Type Earth
Surface_Area 4
Hydraulic_Height 28.3
Drainage_Area 0.12
Nid_Storage 26.7
Structural_Height 28.3
Hazard_Potential Low
Foundations Soil
Nid_Height 28
       

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