The water level at Lake Powell, the United States’ second-largest reservoir, has fallen to a record low, intensifying concerns over the ongoing crisis in the Colorado River system. The milestone, reached recently, follows a similar historic low at Lake Mead just days prior.

These plummeting water levels pose a significant threat to the Colorado River Basin, a vital resource for wildlife, hydropower, and more than 40 million people in Arizona, California, Nevada, New Mexico, Utah, Wyoming, and Colorado. Persistent overuse, combined with a severe drought and rising temperatures, has been depleting both reservoirs.

Lake Powell's elevation dropped to 3,519.91 feet above sea level, slightly below a previous record set in April 2023, according to data from the U.S. Bureau of Reclamation. The lake has receded more than 20 feet since the beginning of the year.

The reservoir is now approximately 30 feet from the point where its turbines would cease producing hydroelectric power. Federal officials issued warnings in April about the necessity of a major intervention to prevent reaching this threshold by the end of the year.

In response to the escalating crisis, the U.S. Bureau of Reclamation proposed a 10-year plan in July that includes significant potential water cuts for Arizona, California, and Nevada.

The current situation has been years in the making. Both Lake Powell and Lake Mead are at their lowest levels in nearly seven decades, with projections indicating further declines. The combined storage in these reservoirs was last this small in May 1957, around the time the Glen Canyon Dam, which holds back Lake Powell, was under construction. Lake Powell began to fill in 1963.

The depletion of the reservoir has also impacted its tourism industry, leading marinas to adapt. Boat ramps have been closed or relocated, new ones have been added, and some marinas have been moved to deeper waters within the reservoir.