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CN Quincy Avenue Bridge (Carnarvon)

Concrete Slab Bridge over Quincy Avenue
Carnarvon, Sac County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name CN Quincy Avenue Bridge (Carnarvon)
Built By Illinois Central Railroad
Contractor Unknown
Currently Owned By Canadian National Railway
Length 38 Feet Total, 18 Foot Spans
Width 1 Track
Height Above Ground 12 Feet 6 Inches
Superstructure Type Concrete Slab
Substructure Type Concrete
Date Built 1911
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
CN Bridge Number 422.8
Significance Local Significance
Documentation Date December 2018


Located near the small town of Carnarvon, this concrete slab bridge crosses Quincy Avenue.
Built in 1911, the bridge features a pair of concrete slab spans, set onto concrete substructures. Until the 1990s, there was also a large through truss bridge just east of this structure.
Overall, it appears that the bridge is in fair to poor condition. Some significant spalling and cracking has occurred on the superstructure.

The author has ranked this bridge as being locally significant, due to the common design.
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