Shortages Looming For Colorado River Basin

Apr 16, 2021

Newly released numbers from the U.S. Bureau of Reclamation project a high chance of shortages on the Colorado River within the next two years. KNAU’s Melissa Sevigny reports.

Credit National Park Service, Lake Mead National Recreation Area


The numbers show Lake Mead is likely to drop below 1075 (one thousand seventy-five) feet in elevation later this year. That triggers a “Tier 1” shortage under the rules of the Drought Contingency Plan.

Arizona takes the brunt of the shortage, losing more than five hundred thousand acre-feet of water, or about a third of the Central Arizona Project’s supply. The canal brings water to Tucson and Phoenix, but the cuts will largely affect farmers.

The Colorado River is currently in “Tier Zero” status, which requires Arizona to leave nearly two hundred-thousand-acre feet of water in Lake Mead.

A joint statement from the Central Arizona Project and Arizona Department of Water Resources says the state is prepared for the cuts, because “water users have been working collaboratively for many years to protect our Colorado River water supply.”

The river’s downward trend is expected to continue through the spring of 2023.