Courier Journal Report : Ohio River Bridge tolls to cost $1 to $12
"Passenger vehicles without prepaid accounts would pay $4 to cross.
The most expensive $12 fare would be paid by heavy trucks without prepaid accounts.
There won’t be toll booths or an opportunity to pay cash when crossing the bridges. Instead, drivers will be charged when they pass under gantries.
Those with electronic transponders attached to the windshield will have the toll deducted from their account. Cameras will read the license plates of those without transponders to settle the bill."
(Via Louisville's Independent Media.)