How far can you dig at a gravel pit? That’s a topic to be addressed during a public hearing Monday afternoon in Middle Township. The township is considering a proposal that would allow a change in ordinance that would permit digging up to 60 feet at a gravel pit, instead of 30 feet. The major reason? A great deal of material is needed at the reconstruction project on the Garden State Parkway, and without a change in ordinance, literally thousands of trucks may have to bring in fill which could impact traffic and local roadways. The hearing will be held at 4pm.