SNOFLO
 


BONNY

RESERVOIR LEVELS
South Republican River
May 3, 2025


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Bonny Dam, located in Yuma, Colorado, along the South Republican River, is a federal structure owned and regulated by the Bureau of Reclamation. Completed in 1951, the earth dam stands at 130 feet in height and serves multiple purposes including flood risk reduction, irrigation, and recreation. With a storage capacity of 348,390 acre-feet and a surface area of 8,565 acres, Bonny Dam plays a critical role in managing water resources in the region.

The dam has undergone modifications in 1994 to enhance its hydraulic, structural, and overall integrity. With a spillway width of 138 feet, the dam is equipped to handle a maximum discharge of 73,300 cubic feet per second. Despite its high hazard potential and very high risk assessment rating, the condition of Bonny Dam is currently listed as "Not Available." Emergency action plans are in place, but details on their readiness and adherence to guidelines remain unspecified. With its strategic location and significant role in water resource management, Bonny Dam is a key asset in mitigating flood risks and supporting various water-related activities in the surrounding area.

As a crucial component of the water infrastructure in Colorado, Bonny Dam stands as a testament to the importance of effective dam management and maintenance. With its rich history and vital functions in flood control, irrigation, and recreation, the dam serves as a symbol of the ongoing efforts to balance water resource utilization with environmental conservation. Water resource and climate enthusiasts will find Bonny Dam to be a fascinating case study in the careful management of water infrastructure for the benefit of both human communities and the natural environment.

Years_Modified 1994 - Hydraulic, 1994 - Other, 1994 - Structural
Year_Completed 1951
Dam_Height 130
River_Or_Stream SOUTH REPUBLICAN RIVER
Dam_Length 9200
Primary_Dam_Type Earth
Surface_Area 8565
Hydraulic_Height 119
Drainage_Area 1820
Nid_Storage 348390
Structural_Height 158
Hazard_Potential High
Nid_Height 158
       

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