This route is not in the current guidebook, and if it stays in the same condition as when I climbed it, then it's probably 5.10d. However, if they re-glue the missing holds which broke off then the difficulty will go back down to 5.8 or so. This is a well-protected climb on flat rock chips which are glued to the flat wall, making an otherwise unclimbable face climbable.
This route is really obvious as you come in, it's possibly the first thing you see. It's to the right of a prominent crack which runs diagonally through the otherwise clean face. The rest of the quarry is to the right of and behind the wall where this route is located.