Scientists and boatmen with the United States Geological Survey are preparing for a busy week on the Colorado River as engineers at Glen Canyon Dam prepare to reduce the water flowing out of Lake Powell substantially.
In order to conduct maintenance on the concrete apron downstream of the dam, engineers will be limiting the water that runs through the dam’s turbines starting Monday and continuing through the rest of the week.
A new Colorado River study predicts we may need to make even deeper cuts to keep our reservoirs from tanking over the long haul. But the dire conclusions within the study aren’t what make it so intriguing. It’s how the group arrived at them. The Future of the Colorado River project, an effort based out of Utah State University, has produced six white papers to evaluate new approaches to water management along the river.
Anyone who has hosted a good dinner party knows that the guest list, table setting and topic of conversation play a big role in determining whether the night is a hit or the guests leave angry and unsatisfied.
That concept is about to get a true test on the Colorado River, where chairs are being pulled up to a negotiating table to start a new round of talks that could define how the river system adapts to a changing climate for the next generation.
In the gloomiest long-term forecast yet for the drought-stricken Colorado River, a new study warns that lower river basin states including Arizona may have to slash their take from the river up to 40% by the 2050s to keep reservoirs from falling too low. Such a cut would amount to about twice as much as the three Lower Basin states — Arizona, California and Nevada — agreed to absorb under the drought contingency plan they approved in early 2019.
Experts agree the amount of water in the Colorado River basin has declined because of drought and climate change, and that population growth is fueling demand for water higher and higher. One result is the level of Lake Powell in Arizona, behind Glen Canyon Dam, has steadily declined and is now at 43% of capacity.
The dry 2020 and the lack of snow this season has water managers in seven states preparing for the first time for cutbacks outlined in drought contingency plans drafted two years ago. A sobering forecast released this week by the Bureau of Reclamation shows the federally owned Lake Mead and Lake Powell — the nation’s two largest reservoirs and critical storage for Colorado River water and its 40 million users — dipping near-record-low levels.
Increasingly bleak forecasts for the Colorado River have for the first time put into action elements of the 2019 upper basin drought contingency plan.
The 24-month study released in January by the Bureau of Reclamation, which projects two years of operations at the river’s biggest reservoirs, showed Lake Powell possibly dipping below an elevation of 3,525 feet above sea level in 2022. That elevation was designated as a critical threshold in the agreement to preserve the ability to produce hydropower at Glen Canyon Dam.
Beside a river that winds through a mountain valley, the charred trunks of pine trees lie toppled on the blackened ground, covered in a thin layer of fresh snow.
Weeks after flames ripped through this alpine forest, a smoky odor still lingers in the air.
The fire, called the East Troublesome, burned later into the fall than what once was normal. It cut across Rocky Mountain National Park, racing up and over the Continental Divide.
West of Lake Powell, along the Utah-Arizona border, lies a sparsely populated territory of high desert, deeply scored canyons and barren mesas. Here, Utah officials want to build a 140-mile-long pipeline to bring precious Colorado River water west to the thriving town of St. George, in the state’s far southwestern corner.
There is a myth about water in the Western United States, which is that there is not enough of it. But those who deal closely with water will tell you this is false. There is plenty. It is just in the wrong places.
