Among the trails in the county are the 17-mile Flint River Trail, part of the Michigan Iron Belle Trail system, and Chevy Commons Trail, part of the new state park that’s being developed in Flint.

Plans call for repaving more than 3.5 miles of the Flint River Trail, which runs through the area, a new playground, rehabilitation of seven existing scenic river overlooks, and historical markers.

The cost of work in the Flint River that’s tied to the development of Genesee County’s first state park has increased by $2.7 ...