Paragon Foods won't go forward with a plan to build a new 80,000-square-foot distribution center with a new urban farm on the 13 acres of the former Tippins Steel mill site near the 62nd Street Bridge in Lawrenceville. Elaine Bellin, president of Paragon Foods, said after much study she's decided the project will prove to be too expensive to build on the former mill property, given the slope of the land and other challenges. "Because of the topography and some other issues, the site development…