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BNSF Bridge #440.05

Concrete Slab Bridge over Unnamed Tributary of Mosquito Creek
Panama, Shelby County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name BNSF Bridge #440.05
Built By Chicago, Milwaukee & St. Paul Railway
Contractor Unknown
Currently Owned By BNSF Railway
Length 28 Feet Total, 14 Foot Spans
Width 1 Track
Height Above Ground 20 Feet (Estimated)
Superstructure Type Concrete Slab
Substructure Type Concrete
Date Built 1910
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
BNSF Bridge Number 440.05
MILW Bridge Number Z-1454
Significance Local Significance
Documentation Date March 2021


Located along Iowa Highway 191, this small concrete slab bridge crosses an unnamed tributary of Mosquito Creek.
Built in 1910 to replace an older bridge, the bridge features two concrete slab spans, set onto concrete substructures. Also known as a concrete pile trestle, these types of spans were highly regarded by railroads, due to the durability and ease of construction. Oftentimes, many would even be prefabricated offsite, although it appears this one was cast in place.
It appears that the bridge is maintained, with newer concrete patching visible throughout the structure.
Overall, the bridge appears to be in fair condition, with some deterioration to the bridge.

The author has ranked the bridge as being locally significant, due to the common design.
The photo above is an overview.

Citations

Source Type

Source

Build Date Date stamp
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele