Ames Creek Bridge

The Ames Creek Bridge is a historic structure located northeast of DeWitt, Iowa, United States  in rural Clinton County. It is an early example of concrete bridge design prior to the codification of standards by the state highway commission. The bridge was listed on the National Register of Historic Places in 1981.

Description
The bridge was designed by the Clinton County Engineer. The Clinton County Board of Supervisors contracted with Charlotte, Iowa contractor J.R. Kane in 1912 to build the bridge. The structure was completed that same year for $2,154. The poured-in-place concrete through girder bridge measures 37 ft long and is 16 ft wide. There is a minimal amount of ornamentation on the structure. It is composed of 11,000 lbs of reinforcing steel and 157 cubic yards of concrete. The bridge's concrete abutments and wing walls required almost 125 cubic yards of excavation. It was built a year before the Iowa State Highway Commission began developing standard bridge plans.