(Cedar Creek #1, 52') across Cedar Creek E. of Monmouth, Monmouth Township, Warren County, IL. IL164 NE 1.6 miles from jct with US34 on the E. side of Monmouth, E. on 215th Av. 0.7 miles, S. on 110th St. 0.65 miles to the bridge. (N40 55.839 W90 34.395) Photos 10-22-10.