Iron bridge (North Big River, 122', 1925) across Big River N. of Bonne Terre, Perry/Big River Township, St. Francois County, MO. Berry Rd. N. 2.5 miles from jct with MO47/SR K on the E. side of Bonne Terre to the bridge. (3-12-06, N37 57.30 W90 33.21) Photo by Jack Schmidt.