(Chagrin River, 167', 1881) across Chagrin River in Pleasant Valley Park in Willoughby Hills, Lake County, OH. OH91 (Som Center Rd.) S. 1.0 miles from jct with I90 exit 189, E. on US6 1.5 miles, NE (left) on Pleasant Valley Rd. 0.4 miles to the bridge. (8-13-09, N41 35.376 W81 24.156) Photos by Mark Comstock & Larry Baker.