What condition were the battleships in after the voyage?

How worn out were the Great White Fleet's ships after returning home?

About half needed rebuilding and continued in service, while others became harbor ships as new dreadnoughts replaced them.

Roughly half of the battleships required rebuilding after the voyage and returned to use, while others became harbor-bound ships for the remainder of their careers. Wear was only part of their declining value because dreadnought construction was already replacing the pre-dreadnought generation. The voyage proved operational capability while imposing heavy maintenance demands on ships nearing obsolescence.