There are really only 2 options...West 2 which is a 6-lane tolled I-69/US41 bridge getting rid of twin bridges and Central which is 4-lane tolled I-69 bridge and 2-lane tolled US 41 bridge. I know they haven't said that both bridges will be tolled but they have to in order to pay for the I-69 bridge. There are around 40,000 vehicles a day on twin bridges. If you keep the one bridge free, it will have at least 15,000-20,000 crossings a day, leaving the tolled I-69 bridge just 20,000-25,000 per day. No way you fund $1 billion bridge on 25,000 crossings. Louisville has 100,000 crossings to fund there $2.3 billion bridges.