Ames Creek Bridge

The Ames Creek Bridge is an 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.[1]

Ames Creek Bridge
Ames Creek Bridge.JPG
Ames Creek Bridge is located in Iowa
Ames Creek Bridge
Ames Creek Bridge is located in the United States
Ames Creek Bridge
Location300th St. over Ames Creek
DeWitt, Iowa
Coordinates41°51′01″N 90°30′36″W / 41.85028°N 90.51000°W / 41.85028; -90.51000Coordinates: 41°51′01″N 90°30′36″W / 41.85028°N 90.51000°W / 41.85028; -90.51000
ArchitectClinton County Engineer
Architectural styleconcrete through girder bridge
MPSHighway Bridges of Iowa MPS
NRHP reference No.98000802[1]
Added to NRHPMarch 19, 1981


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.[2] The poured-in-place concrete through girder bridge measures 37 feet (11 m) long and is 16 feet (5 m) wide.[2] There is a minimal amount of ornamentation on the structure. It is composed of 11,000 pounds (4,990 kg) of reinforcing steel and 157 cubic yards of concrete. The bridge's concrete abutments and wing walls required almost 125 cubic yards of excavation.[2] It was built a year before the Iowa State Highway Commission began developing standard bridge plans.


  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
  2. ^ a b c "Ames Creek Bridge". Iowa Department of Transportation. Retrieved 2012-05-26.