Megadungeon Crypts

In order to make my busy life more difficult, I've been pecking away at a megadungeon.

This will have some differences from your standard run-of-the-mill megadungeon.

This will be a massive sprawling crypt that spans 6 8x11 pieces of graph paper. The idea being that the crypts were expanded and added-to over time creating a massive labyrinth.

Also, to do something different I'm eschewing traditional vertical dungeon levels in favour of horizontal semi-themed ones.

I've created massive randomized lists in excel for monsters, treasure, and dungeon dressing, but I need to generate a bunch of one or two sentence descriptions for empty (or largely nondescript) rooms. Has anyone bumped into a forum post about this or perhaps a list of empty rooms?