Ohio River bridges with tolls (over $4 per crossing)

I-65: The Kennedy Bridge (southbound) and The Lincoln Memorial Bridge (Northbound).

I-265: The Lewis and Clark Bridge (a.k.a. "The East-end Bridge")

Ohio River without tolls

I-64: The Sherman Minton Bridge

US-31: The Clark Memorial Bridge (a.k.a. "The Second Street" Bridge and it is painted yellow

https://riverlink.com/tolling-options-rates/tips/visitors/