 The portion from Autoroute 20 to Edmundston, New Brunswick is approximately 120 km (75 mi) long.Following the designation of Route 2, from Edmundston, the highway (again signed exclusively with the TCH shield) follows the Saint John River Valley, running south for to Woodstock (paralleling the Canada–US border) and then east for another to pass through Fredericton.east of Fredericton, the Saint John River turns south whereby the highway crosses the river at Jemseg and continues heading east to Moncton another later.