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IAIS Hilton Creek Bridge

Deck Girder Bridge over Hilton Creek
Marengo, Iowa County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name IAIS Hilton Creek Bridge
Built By Chicago, Rock Island & Pacific Railroad
Contractor American Bridge Company of New York
Currently Owned By Iowa Interstate Railroad
Length 132 Feet Total, 44 Foot Spans
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Type Deck Plate Girder
Substructure Type Concrete
Date Built 1912
Traffic Count 4 Trains/Day (Estimated)
Current Status In Use
RI Bridge Number 2647
Significance Local Significance
Documentation Date June 2018


This large deck girder bridge crosses Hilton Creek east of Marengo.
Built in 1912, the bridge clearly received updates to the substructures in the last 30 years. An encasement around the piers protects them from further scouring.
Consisting of a trio of deck girder girder spans, the entire bridge sits on concrete substructures. It would appear modifications to these occurred in approximately 1955, and included encasing an older abutment in concrete.
Overall, the bridge remains in good condition. Like many structures along this route, the bridge has been rehabilitated into good condition.

The author has ranked this bridge as being locally significant, due to the common design of the bridge.
The photo above is an overview. The bridge can be accessed from US-6.

Citations

Source Type

Source

Bridge History Chicago, Rock Island & Pacific Structural Notes at the National Archives; College Park, Maryland
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele