Sewer road has been a tough one to keep a cache at due to high muggle activity. One day an idea hit like big old load of inspiration which would finally answer nature's call and have me drop a massively deserved cache in this area.
If you haven't put it together yet here are a few more hints: Doodie, poo poo, cock a doodle doo, poopie, dookie, CACA, number two, stink pickle, pinched loaf, unloosed caboose, the dropped bomb, the brown trout, unloaded timber, etc...
Please be as stealthful as possible. Turd burglars abound.