New Hampshire State Route 116 runs east-west across Northern Grafton County. Part of this highway runs through the White Mountain National Forest. It runs from the Coos/Grafton County Line, near Whitefield, to New Hampshire State Route 10, at Haverhill. NH St Rt 116 passes through the following towns in Grafton County. Littleton Bethlehem Franconia Easton Haverhill NH St Rt 116 is multi-plexed in Grafton County. U.S. Rt. 302, from Littleton to Bethlehem. New Hampshire State Route 18, from Littleton to Franconia.