Weeks Marine serves our clients through five operating Divisions: Construction, Dredging, Marine Services, Healy Tibbitts Builders and McNally. The Construction Division operates from the Cranford, NJ Headquarters and the Houston, TX office. The Dredging Division is based in Covington, LA, while Marine Services is based in the Cranford, NJ Headquarters. Healy Tibbitts is located in Aiea, Hawaii and McNally is located in Hamilton, ON and Halifax, NS.