Right now, the only way appears to be to go up Route 7 and take Stratton-Arlington Road east to Route 100 south into Wilmington. Not sure what the vehicle access into downtown will be today. You may have to make that sharp left onto Stowe Hill Road just past the Alpine Trader, then the first right onto Whites Road which will put you onto 100 just east of town. You can then go to the High School and find out what’s going on today.
Thanks to Bill for this information.