Q. Where is all the dirt that’s being removed for the new underground parking garage next to the library going?

A. Most of the soil removed from the site is sand and gravel, so it’s been in demand: 3,800 cubic yards went to a Scio Township gravel pit, 4,900 became backfill for a sewer job in Dearborn, and 2,100 were used for a utilities project in Detroit. Another 14,500 cubic yards are stored near Whitmore Lake for future use. Some of that will become backfill for a new sanitary sewer line being installed at the southern end of the library lot project. More will be mixed into the concrete used to build the subterranean decks.