ISHC Experimental Design
120th Street Bridge (Muscatine County, Iowa)Built 1937; Replaced 2020
Steel rigid frame bridge over an unnamed creek on 120th Street
Replaced by a new bridge
2nd Avenue Overpass (Polk County, Iowa)Built 1936; rehabilitated 1985
Rigid frame bridge over Birdland Drive on 2nd Avenue in Des Moines
Replaced by a new bridge
Hockeys Slough Bridge (Muscatine County, Iowa)Built 1937
Concrete Rigid Frame bridge over Hockeys Slough on Bancroft Avenue
Open to traffic
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