Water Availability Project · Chapter 02

Lake Powell & Glen Canyon Dam

Storage • Inflow • Power Pool • Dead Pool • Downstream Release

This chapter follows the snowpack failure downstream into Lake Powell, the reservoir that controls Glen Canyon Dam releases. The public question is direct: how close is the system to the operating thresholds where hydropower, releases, Lake Mead, and Arizona planning all change?

End-April Elevation
3,527
ft above sea level
Storage
5.62
MAF · 24% live capacity
Power Pool
3,490
ft · hydropower threshold
Dead Pool
3,370
ft · no normal release

Current Level

3,527 ft 24% live

Where Lake Powell stands now, and how much storage room remains.

View Signal

Projection

3,511 ft WY end

What the May 24-Month Study projects by the end of water year 2026.

View Outlook

Power Pool

3,490 ft hydropower

The threshold where Glen Canyon Dam can no longer produce power normally.

View Threshold

Dead Pool

3,370 ft system risk

The deeper threshold where regular release through the dam becomes impossible.

View Risk
Current Signal
3,526.99 ft
End-April elevation; only 5.62 MAF in storage.
Projected WY End
3,510.85 ft
May 24-Month Study most-probable end-of-water-year level.
Minimum Power Pool
3,490 ft
Below this, Glen Canyon Dam can no longer produce hydropower normally.
Dead Pool
3,370 ft
Below this, water cannot normally pass through the dam to the river below.
Why Lake Powell is the next chapter
Reservoir storage · hydropower · downstream release
The snowpack story becomes real at Lake Powell. Weak runoff means less refill. Less refill means the reservoir approaches the thresholds that determine whether Glen Canyon Dam can generate power, release water through normal turbine paths, and help support Lake Mead downstream.
Reader translation: Powell is the hinge between mountain water and Lower Basin consequences.
Future deep dive
24-Month Study · dam operations · emergency releases
This can become a detail page explaining current projections, minimum power pool, dead pool, river outlet works, Flaming Gorge emergency releases, reduced Powell-to-Mead releases, Hoover power impacts, and the timeline of risk.
Placeholder path: /water-lake-powell-glen-canyon
How This Story Moves Forward

From Powell Storage to Downstream Consequences

This chapter should explain the thresholds, then hand the reader to the operational question: how much water will Glen Canyon release, and what does that mean for Lake Mead, Hoover, CAP, and Arizona groundwater?

Chapter 01
Snowpack

The mountain water bank failed to produce a normal runoff pulse.

Chapter 02
Lake Powell

Low inflow pushes the reservoir toward key operating thresholds.

Chapter 03
Glen Canyon

Dam operations determine power generation and downstream release.

Chapter 04
River Flow

Lees Ferry shows what is actually moving into Grand Canyon.

Chapter 05
Lake Mead

Reduced releases accelerate Mead’s decline and affect Hoover Dam.

Chapter 06
Arizona

CAP, cities, farms, tribes, and aquifers absorb the next impacts.

Chapter 07
Demand

Growth, mines, power, and groundwater pumping intensify the strain.