25-percent of slips at Chicago harbors empty

For a second year in a row, Crain's Chicago Business reports more than a quarter of Chicago's boat slips are open.

Docking fees cost about $1,500 a year a boat, and the vacant slips are costing the Chicago Park District more than $7 million a year in lost revenue.

For the first time in years, the Chicago Park District did not raise its docking fees.