Stone arch bridge (Chautauqua Park, 1933) in Chautauqua Park in Sac City, Sac County, IA. US20 E. 0.3 miles from jct with 5th St. (CR M54) in Sac City to the park and bridge on the S. side of the road. (11-2-01, N42 25.244 W94 59.067)