Lower Las Vegas Wash Stabilization: An Erosion Control and Flood Mitigation Program for Infrastructure Protection

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Description

Date: Presented at StormCon 2024 in Reno, Nevada on August 28, 2024
Speakers: Masih Bari
Credits: 0.75 PDH / Approved for all Envirocert International, Inc. (ECI) Certifications: Approval #PDH-0042

The Lower Las Vegas Wash (Wash) is the ultimate 4-mile drainage segment of the Las Vegas Wash, which connects the Las Vegas Metropolitan area eastward to the Lake Mead reservoir. Lake Mead water surface elevation has been lowering over the past decades, increasingly exposing the Wash bottom with an unstable slope. This has significantly intensified erosion along the Wash, transferring an estimated 800 tons of sediments to Lake Mead daily. Increasingly impervious urban areas, climate change, and tropical storms are expected to further intensify erosion. To stabilize the Wash, the Southern Nevada Water Authority has initiated a program to design and implement additional erosion control measures along the Wash to prevent erosion against the 100-year design flow. This multi-disciplinary program includes hydrology, hydraulics, geotechnical and structural elements, permitting, sediment, water quality, etc. This presentation provides an overview of the program, challenges encountered, and proposed solutions.

Session duration: 45 minutes

About the Presenters

Masih Bari has about 20 years of experience in water resources planning and management involving interdisciplinary projects that required systemic approaches in the context of environmental concerns, sustainability, and climate change. Dr. Bari has numerous publications including white papers, scientific papers, and two editions of a textbook. He has conducted projects across the United States and internationally. Dr. Bari is currently leading AtkinsRèalis stormwater market in Southern California and supports infrastructure projects in Nevada.

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