"The Hawkeye Avenue Bridge is a well-preserved example of an open spandrel reinforced concrete arch bridge. The bridge was designed by the Fort Dodge City Engineer, C.H. Reynolds, and constructed by Koss Construction Company of Des Moines, Iowa.
"The Mill Rock Bridge was documented by Bennett, Muessig, Ryan & Associates, Ltd., Iowa City, Iowa, for the City of Fort Dodge in 1985."
Third Street Bridge
Approximate latitude, longitude
+42.51273, -94.20354(decimal degrees) 42°30'46" N, 94°12'13" W (degrees°minutes'seconds")