(Tunkhannock Viaduct, 2,375' x 240', 1915) across Tunkhannock Creek in Nicholson, Wyoming County, PA. PA92 (State St.) E. 0.1 miles from jct with US11 in Nicholson to the viaduct. (N41 37.583 W75 46.568) Photos by Jack Schmidt 6-16-06.