Kasich signed the bill Wednesday at Cincinnati's Paul Brown Stadium. That's adjacent to the 51-year-old Brent Spence Bridge, which spans the river to northern Kentucky.
The bridge carries about 172,000 vehicles a day. The reconstructed bridge would more than double its capacity and address safety and traffic concerns that have caused the National Bridge Inventory to label the Brent Spence as "functionally obsolete."
The new bridge isn't yet built, and despite Kasich's approval, tolling is still far down the road. Kentucky also would have to approve legislation for tolling, and lawmakers in the commonwealth are vehemently opposed.
Kentucky's governor supports it.