Here's another good source for Lake Powell's water levels including info on minimum power pool and dead pool.
www.lakepowellwaterlevel.com/blog/what-is...
lakepowellwaterlevel.com
What Is Lake Powell's Dead Pool? (And How Close It Really Is)
Water can no longer pass through Glen Canyon Dam at elevation 3,370 ft, the threshold called dead pool. How close Lake Powell is, and what breaks if it arrives.