SNOFLO



ALLERMAN #1 DAM

RESERVOIR LEVELS
Soil Dam Carson River-Os
April 9, 2025


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Allerman #1 Dam, located in Minden, Nevada, serves primarily for irrigation purposes along the Carson River. This earth dam, with a height of 20 feet and a length of 2800 feet, has a storage capacity of 500 acre-feet and a surface area of 10 acres. It is regulated and inspected by the Nevada Division of Water Resources, ensuring its safety and compliance with state standards.

The dam features a controlled spillway and outlet gates for water release, with the last inspection in September 2021 rating its condition as fair with a high hazard potential. Despite its age, with modifications in 1997, it continues to play a crucial role in water management and supply in the region. With a very high risk assessment, stakeholders must prioritize maintenance and risk management measures to ensure the safety and efficacy of Allerman #1 Dam for the surrounding communities and ecosystems.

For water resource and climate enthusiasts, Allerman #1 Dam presents an intriguing case study of a privately owned structure that plays a vital role in water allocation and management in Nevada. Its history, design, and current condition offer valuable insights into the challenges and opportunities associated with maintaining aging infrastructure in the face of evolving climate conditions and increasing water demands. As discussions around sustainable water practices and infrastructure resilience continue to gain importance, the story of Allerman #1 Dam serves as a reminder of the intricate relationship between human development and natural resources.

Years_Modified 1997 - Hydraulic
Dam_Height 20
River_Or_Stream CARSON RIVER-OS
Dam_Length 2800
Primary_Dam_Type Earth
Surface_Area 10
Hydraulic_Height 19
Drainage_Area 5
Nid_Storage 500
Structural_Height 21
Outlet_Gates Other Controlled - 1, Slide (sluice gate) - 1
Hazard_Potential High
Foundations Soil
Nid_Height 21
       

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