The Chicago toll road was supposed to only last as a toll road until the tolls paid for the road. That was a couple of decades ago, the tolls are still there.
Tolls create a new industry, toll collectors and toll management. Most money from tolls go to payroll and benefits, not the roads. This of course drives up the total cost of transportation by adding an unneeded layer of excessive costs.
Ditto the Ohio Turnpike.
The bonds were paid off in 1989. The toll booths were supposed to come down at that point. They are still there.