From the north (Boston) or south (Cape Cod) take Route 3 to Exit 9. At the end of the exit from the highway take a right onto Route 3A. Go down the hill, passing through the traffic light at the bottom. Proceed to the fork and bear left onto Route 106 west. Stay on 106W for .7 mile; bear right (not a hard right) at the traffic light onto Route 27 north. The Administration building is located 2.6 miles down 27N on the left.