An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

Glen Canyon Dam photo

Recent drop in Lake Powell’s storage shows how much space sediment is taking up

A new study shows that sedimentation from the Colorado River means that Lake Powell's storage capacity is lower than previously believed.
The confluence of the Colorado and Little Colorado rivers in the Grand Canyon, shown here in a September 2020 aerial photo from Ecoflight, represents an area where the humpback chub has rebounded in the last decade. That progress is now threatened by declining water levels in Lake Powell, which could lead to non-native smallmouth bass becoming established in the canyon. CREDIT: JANE PARGITER/ECOFLIGHT

Declining levels at Lake Powell increase risk to humpback chub downstream

Low levels and warming waters threaten to increase invasive species in the Colorado River.
Hydroelectric turbine at Glen Canyon Dam photo

Powell’s looming power problem

Drought and demand threaten a critical component of the Western grid as Lake Powell approaches minimum power pool for the first time.

Two new Colorado River deals give parched Lake Powell temporary relief

Lake Powell will receive 1 million acre-feet of water from the Colorado River as a short-term solution to drought, boosting lake levels and protecting hydropower production.
The Colorado River flows towards Horsethief Canyon photo

Special Report: As Lake Powell hits record lows, is filling a new drought pool...

The drought pool would be filled voluntarily, largely by farmers and ranchers, who would be paid to temporarily dry up their fields.

As the Colorado River shrinks, can the basin find an equitable solution in sharing...

Drought and climate change are raising concerns that a century-old compact that divided the river’s waters could force unwelcome cuts in use for the upper watershed.

Data viz: Lake Powell levels

Last update: September 21, 2022 Percent of total capacity Source: US Bureau of Reclamation
Cedar Springs Marina photo

Feds won’t do more emergency water releases to aid Lake Powell after this year

The releases from Flaming Gorge, Blue Mesa and Navajo reservoirs are designed to bolster hydropower production at the ailing Lake Powell.
Elk Creek Marina photo

Blue Mesa Reservoir releases to prop up Lake Powell impacting recreation

In an effort to prop up water levels at Lake Powell, water managers are negatively impacting recreation on Colorado’s biggest man-made lake. 
Glen Canyon Dam photo

Electric costs in Colorado set to surge as Lake Powell struggles to produce hydropower

A federal agency aims to offset rising costs linked to Lake Powell’s inability to produce as much hydropower due to drought.