L3PS Las Vegas

2015 - 2020

Low Level Pumping Station L3PS - Lake Mead, Nevada

As Lake Mead water levels continue to fall during the worst drought in the history of the Colorado River Basin, the Southern Nevada Water Authority's low lake level pumping station will ensure Southern Nevada maintains access to its primary water supplies in Lake Mead.

Water levels at Lake Mead water levels have dropped more than 130 feet since the drought began in 2002. If the lake dips below elevation 895 feet, Hoover Dam can no longer release water downstream to California, Arizona, and Mexico.

Development of the pumping station involved constructing a 26-foot-diameter access shaft more than 500 feet deep, then excavating a 12,500-square-foot underground cavern at its bottom.

The cavern, known as a forebay, connects with 34 vertical shafts — each 500 feet deep and 6 feet in diameter — to accommodate the station’s submersible pumping units.

The $650-million project broke ground in mid-2015 and is scheduled for completion in 2020. When finished, the pumping station will have the capacity to deliver up to 900 million gallons a day to our treatment facilities.

(C) (https://www.snwa.com/our-regional-water-system/low-lake-level-pumping-station/index.html)
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