You are crossing a work zone when you cross the Twin Bridges. All lane shifts and traffic changes are now in place to allow the painting and rehab project to begin. There will be three lanes of traffic on the northbound span to allow work on the southbound bridge. Only one lane of south-flowing traffic will be on the southbound span. A 35-mile-per hour speed limit is in effect. Lanes are now even tighter, all at 10-feet in width. Contractors are counting on the cooperation of the 39,000 drivers that cross the Ohio River daily.