MARINE PROJECTS WEEK August 6, 2020 USACE awards contract for Duluth-Superior Harbor dredging Written by Baird Maritime on August 6, 2020. Posted in Commercial Mariner - Marine Projects, Dredging and Land Reclamation. The US Army Corps of Engineers’ (USACE) Detroit District has awarded a contract for dredging at Duluth-Superior Harbor in western Lake Superior on the .. Read More