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CN Bridge #185.72

Stone Arch Bridge over Unnamed Creek
Dubuque, Dubuque County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name CN Bridge #185.72
Built By Illinois Central Railroad
Contractor Unknown
Currently Owned By Canadian National Railway
Length 8 Feet Total
Width 1 Track
Height Above Ground 5 Feet (Estimated)
Superstructure Type Stone Arch
Substructure Type Stone Masonry
Date Built 1853
Traffic Count 7 Trains/Day (Estimated)
Current Status In Use
CN Bridge Number 185.72
Significance Local Significance
Documentation Date April 2018


Located in Dubuque, this arch bridge crosses an unnamed creek along Mar Jo Quarry Road.
Originally built in 1853 as a single stone arch, this arch has fared very well since construction. No significant alterations have been made.
Typically, stone arches are durable and should not fail.
Currently, the bridge crosses a drainage creek. However, it was constructed to cross a cattle pass.
Overall, the bridge appears to be in excellent condition, with no visible major deterioration.

The author has ranked this bridge as being moderately significant, due to the old age.
The photo above is an overview.

Citations

Source Type

Source

Build Date 1973 Illinois Central track profile
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele