Today the guy who owns the RV park at the former Lock and Dam 24 site near Racine, Ohio, a few miles below the Racine Locks and Dam, let me wander around and get lots of pictures of the site, including inside the old powerhouse. As usual, I shot lots and lots, and it will take time to process them. Here are two of the old lock's powerhouse.
I believe the two residential buildings remain. If so, they are the two I saw across Ohio 124 from the powerhouse.