 The Route 168 signage and tolls were both removed when the crossing was expanded in 1976 as part of the federally funded Interstate 64 improvements, which included four-laning the crossing.The SR 168 designation also formerly applied to a routing on the Virginia Peninsula from Anderson's Corner near Toano west of Williamsburg to the Hampton Roads Ferry landing at Old Point Comfort near Fort Monroe.Known as the Merrimack Trail, the road was a major additional highway which was built in the years prior to the creation of the Interstate Highway System, and was replaced as a major through route by Interstate 64, in segments as that new road was completed.