Madison County may have them covered, but we got 'em high in Boone County!
Quoted from the Boone, Iowa Website about their bridges. 
Boone, Iowa

Visit Ledges State Park. There are bike and walking trails, the Stone Arch Bridge, and camping sites. Ledges State Park is a great place to bring the family for a picnic, and an afternoon of fun. If you are going it alone, it's a great solitude to enjoy nature and get in touch with your inner self. 

Boone, Iowa, home of 
Jake and Peggy Farms, the Justice Team. 

Iowa State Fair
August 11-21, 2022

Pufferbilly Days
August 5-7, 2022
Jimmy's Barbecue Pit
Van Hermert's Dutch Oven Bakery