Shea Concrete Products delivers 40 precast floating docks to Lynn’s Seaport Landing Marina in Lynn, MA. Altogether, Shea Concrete Products manufactured 14 main docks and 28 dock fingers, with the largest main dock at 9ft wide by 50ft long, and weighing over 50,000lbs. Upgrades to the Seaport Landing Marina began last November, as an attempt to spur redevelopment in the area. Located just 10 miles North of Boston, the marina is capable of accommodating 65 vessels, with boats up to 65ft in length. The Seaport Landing Marina has been operated by the city of Lynn for 25 years.