HORIZON LATERAL – PHASE ISOUTHERN NEVADA WATER AUTHORITY
Forty percent of Southern Nevada’s drinking water is delivered through a large water pipeline known as the South Valley Lateral. Completed in the 1990s, this pipeline was built before much of the current City of Henderson existed. Now it supports nearly a million people in the southern Las Vegas Valley.
The Southern Nevada Water Authority (SNWA) is planning to build a second pipeline and associated transmission infrastructure to convey water throughout the south portion of the Las Vegas Valley. Called the “Horizon Lateral,” this program will help ensure reliable water service for Southern Nevada.
If major repairs on the South Valley Lateral are needed, or a system outage occurs, the Horizon Lateral will help maintain water deliveries. Both pipelines will work together to ensure our water system remains one of the most reliable in the nation.
The primary component is approximately 30 miles of large pipe up to 10 feet in diameter (much larger than the pipelines or water mains you might find in the street outside your home).
New components include improvements to existing infrastructure and a phased approach to construction of new transmission facilities. Phase 1 includes five projects, a combination of improvements to existing facilities and construction of new transmission infrastructure.
