Mile Long Bridge

A bridge connecting Ankeny, Polk City, Grimes and Johnston areas is about to close for a couple months. According to the DOT, 7,700 vehicles drive the bridge over Saylorville Lake every day. Starting on March 31, the Mile Long Bridge will be closed. The encouraged detour runs 16 miles to the south around the reservoir and includes Lower Beaver Road, Northwest 66th Avenue and 415. If everything goes as scheduled the Mile Long Bridge will be closed just shy of eight weeks.