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RIRIE

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March 28, 2025


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Ririe is a federally-owned dam located in Bonneville, Idaho, along the Willow Creek river. Completed in 1976 by the Bureau of Reclamation, this rockfill dam stands at an impressive height of 253 feet, with a storage capacity of over 100,000 acre-feet and a maximum discharge of 40,000 cubic feet per second. The dam primarily serves the purpose of flood risk reduction, with additional benefits for irrigation and recreation in the surrounding area.

Managed by the Bureau of Reclamation, Ririe Dam is subject to regular state inspections and enforcement by the Idaho Department of Water Resources. With a high hazard potential and a very high risk assessment rating, emergency action plans are crucial for ensuring public safety in the event of a dam failure. Despite limited information on the dam's condition assessment, the last inspection in May 2020 and the preparedness for emergencies, such as flood inundation maps and risk management measures, are essential components in safeguarding the surrounding communities.

Ririe Dam's strategic location in Bonneville, Idaho, and its significant role in flood risk reduction highlight its importance in water resource management and climate resilience efforts. As a key infrastructure managed by the Bureau of Reclamation, ongoing monitoring and maintenance are essential to ensure the dam's integrity and the safety of downstream areas. With its critical functions and potential risks, Ririe serves as a poignant reminder of the importance of proactive dam safety measures in the face of changing climate conditions.

Year_Completed 1976
Dam_Height 253
River_Or_Stream WILLOW CREEK
Dam_Length 1070
Primary_Dam_Type Rockfill
Surface_Area 1560
Hydraulic_Height 169
Drainage_Area 487
Nid_Storage 100500
Structural_Height 253
Hazard_Potential High
Foundations Rock
Nid_Height 253
       

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