Cheyenne Peaking Detention Basin Dam

About Cheyenne Peaking Detention Basin Dam

The primary purpose of Cheyenne Peaking Detention Basin Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by City Of North Las Vegas (local government). It impounds the Las Vegas Wash-tr near North Las Vegas.

The dam stands 25 feet tall and stretches 4,735 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 638 acre-feet, and collects water from a drainage area of 71 square miles. Completed in 2005, the structure is relatively new.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 02/25/2024.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Nevada dam safety program can provide more specific information about emergency planning for this structure.

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