Hagadone Hospitality can begin renovating the Marina Yacht Club on Blackwell Island after receiving a federal permit late last week, company officials said.
After the expansion, the marina will have 420 boat slips, new offices and higher ground for future residential development. The marina lies at the confluence of Lake Coeur d’Alene and the Spokane River.
The work will take place over six years but must occur during low-water periods in fall and winter, said John Barlow, a Hagadone executive. The company will dredge 142,000 cubic yards of material from the lake bottom. Clean material will be deposited on Blackwell Island. But 18,000 cubic yards tainted with heavy metals from upstream mining activity will be taken to a landfill.
Environmental groups objected to Hagadone Hospitality’s earlier plans to dispose of the tainted soil in lined pits on the island. In January, company officials agreed to take that soil to an offsite landfill.