MARQUETTE — The Lee A. Tregurtha was expected at 1:30 p.m. today at the Lake Superior & Ishpeming ore dock in Marquette’s Upper Harbor. Friday, four boats are expected: the Michipicoten at 8 a.m., the Menominee at 10 a.m., the James L. Kuber at noon and the Kaye E. Barker at 8 p.m.