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Davenport Waterworks Trestle

Pony Truss and Girder Bridge over US-67 and 11th Street
Davenport, Scott County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name Davenport Waterworks Trestle
Built By Chicago, Milwaukee St. Paul & Pacific Railway
Contractor (Original Steel Components) Wisconsin Bridge & Iron Company if Milwaukee
Currently Owned By Dakota, Minnesota & Eastern Railroad
Length 1,398 Feet Total, 119 Foot Main Spans
Width 1 Track
Height Above Ground Varies, 20 Feet Average (Estimated)
Superstructure Type Wooden Trestle with Deck Plate Girder, Warren Pony Truss and I-Beam
Substructure Type Concrete and Timber Pile
Date Built 1899, Pony Trusses Added 1984
Traffic Count 1 Trains/Day (Estimated)
Current Status In Use
DM&E Bridge Number H-8
Significance Moderate Significance
Documentation Date December 2017
In 1868, the Davenport & St. Paul Railway built a 128 mile route between Davenport, Iowa and Fayette, Iowa.
By 1876, the route became part of the Davenport and North Western Railway, before becoming part of the Chicago, Milwaukee & St. Paul Railway.
The Milwaukee Road had built a significant amount of trackage throughout the midwest, and Iowa in particular.
In 1931, the route was abandoned between DeWitt and Long Grove, and between Long Grove and Eldridge in 1938.
Trackage was continously abandoned through the 1950s, 1960s and 1970s in short segments. One remaining spur to Eldridge survived to the end of the Milwaukee Road, when it was purchased by Soo Line in 1985.
The following year, Soo Line was purchased by Canadian Pacific. CP spun this line off to I&M Rail Link in 1997, and I&M Rail Link became part of the Iowa, Chicago & Eastern Railway in 2002. IC&E later became part of Dakota, Minnesota & Eastern.
Currently, the remaining spur of line is owned by Dakota, Minnesota & Eastern, a subsidiary of Canadian Pacific.
06/16/22


One of the longest and most unique bridges in Davenport contains a variety of components.
When first built in 1899, the bridge contained the current deck girder span over 11th Street, as well as a pony truss over River Drive.
The bridge can be divided into three segments: the span over 11th Street, the trestle middle and the pony truss spans over River Drive.
In addition, the main pony truss span was a riveted Warren Pony Truss with 6 panels, which was built in 1905. The entire bridge rested on wooden substructures.
However, the pony truss span was replaced in 1984 by a pair of riveted pony truss spans. In addition, several trestle spans were replaced by I-Beam spans.
The new substructures for these spans include concrete pile structures. The pony truss spans are heavily skewed.
Overall, the bridge remains in good condition. However, it likely will not carry train traffic for more than another decade.

The author has ranked this bridge as being moderately significant, due to the unique history of the structure.
The photo above is an overview. The bridge can be accessed from any of the nearby streets.

Citations

Source Type

Source

Build Date Milwaukee Road Archives at the Milwaukee Central Library
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele



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