 By 1963, the spur to the North Carolina Coastal Experimental Station was downgraded to secondary road and NC 11 was truncated at US 117 near Wallace.In 1966, NC 11 was extended north on new primary routing, across the Roanoke River, to NC 308, in Lewiston.In 1967, its northern terminus was extended again to NC 305, in Connaritsa.