Concrete Engineering Co

Minnesela Bridge (Butte County, South Dakota)
Built 1920
Culvert bridge over Redwater Rv on Helmer Road
Open to traffic

US65 Winnebago River Bridge (Cerro Gordo County, Iowa)
Abutment Encasers, 1926
Concrete deck girder bridge over Winnebago River on southbound US 65
Open to traffic