Description Dedicated November 25, 1923, this historic highway bridge is located in Northern California along State Highway 36. Spanning the Susan River, it is located 7 miles East from the town of Susanville. Old photos of the dedication show a large crowd of locals gathered on the bridge for the special event. The old Fernley and Lassen Railway trestle is just in the distance behind the bridge and is now part of the Bizz Johnson Trail. James Q. Eddy Jr.