Since 2003 when the project was authorized, more than $200 million has been spent on design and other work. A new interchange in Kentucky has been completed to accommodate an east end bridge, exploratory drilling for a tunnel and the bridges’ piers has been pursued, some right-of-way has been purchased and detailed right-of-way plans have been developed. The types of new bridge structures have been selected and they’ll include bicycle and pedestrian crossings, under the plans.