Iron bridge (Cascade Rd., 140', 1954) across South Fork Sangamon River SE of Rochester, Cotton Hill Township, Sangamon County, IL. IL29 (Springfield Rd.) SE 4.9 miles from jct with Main St. in Rochester, S. on Jett Rd. 1.6 miles, W. on E2300N 1.6 miles, S. on Cascade Rd. 0.9 miles to the bridge. (11-9-07, N39 40.243 W89 29.574)