Traffic & Transportation Highway 17 Closed at Coniston (Sudbury) By Content Team - April 24, 2014 @ 1:37 pm 0 FacebookTwitterWhatsAppLinkedinEmailPrint Sudbury Detachment of the O.P.P. are advising motorists that a collision has resulted in the closure of Hwy. 17 East at Coniston for Police investigation. A detour is in place.