After falling to record lows in 2022, Lake Mead has seen its water levels rise 3 feet above projections after a precipitation-heavy winter. But experts warn it's only a temporary reprieve without a comprehensive water management plan.
People Also Ask
Arizona, California and Nevada are proposing to voluntarily save at least 3 million acre-feet of water in Lake Mead through 2026, over and above any other water cuts to which we've previously agreed. That's enough over three years to cover the entire city of Phoenix in more than 9 feet of water.
Lake Mead expected to have gained 20 feet of water by end of 2023. By the end of the year, the water level at Lake Mead is expected to be at least 20 feet higher than it was in January, according to a Bureau of Reclamation forecast released this week.
What happens if Lake Mead dries up forever? If Lake Mead were to run out of water, the Hoover Dam would no longer be able to generate power or provide water to surrounding cities and farms. The Colorado River would essentially stop flowing, and the Southwest would be in a major water crisis.
Lake Mead's water level continues to fall to historic lows, bringing the reservoir less than 150 feet away from “dead pool” — so low that water cannot flow downstream from the dam. The loss of water entirely from this source would be catastrophic.
If the reservoir dips below 895 feet (272.8 meters) – about 150 feet (45 meters) lower than where it is now – Lake Mead would reach what's called dead-pool level. Dead pool is when water in a reservoir drops so low that it can't flow downstream from the dam.
The Lake Mead problem could be resolved by draining Lake Powell and storing the water in Lake Mead. More than 5% of the water in the Colorado River evaporates off the surface of Lake Powell - which never should have been built.
Most of our rainwater travels untreated through gutters, storm drains, channels, washes and eventually into the major source of our drinking water - Lake Mead. All storm drains lead to lake mead. Stormwater that falls in the Las Vegas Valley picks up pollutants and travels untreated to Lake Mead.
The amount of water that melted off and made its way into the river system was enough for the Bureau of Reclamation to release far more water from Glen Canyon Dam at Lake Powell this year, which means more water flowing downstream into Lake Mead.
Tourism on the Colorado River is a $9 billion-a-year industry, but that will drop off a cliff with fewer options for rafting, fishing, and boating. Many of the canals and branches from the Colorado River that channel drinking water would also run dry. Arizona gets more than one-third of its water from the river.
Since 1983, years of drought along with high water demand have caused the lake to drop by 132 feet. Today, the lake is at only 30% capacity, its lowest level since it was built in the 1930s. Fortunately, heavy rainfall early in 2023 has relieved the situation a little, but only temporarily.
If the Hoover Dam shuts down, it will have a ripple effect in the states of Nevada, Arizona, and California. There will be less water to go around, power will have to come from less clean sources, and all industries will be impacted some way or another.
As mentioned, it's possible for the water level in Lake Mead to drop to the point where the dam cannot generate hydroelectric power. However, it's very unlikely that the lake would completely run out of water.
On the evening of August 20, 2023, Lake Mead, the largest reservoir in the US by water capacity, recorded a water level of 1,063.62 feet above Mean Sea Level (MSL). This level is significantly lower than its full capacity, standing 165.38 feet below the full pool of 1,229.00 feet.