HistoricBridges.org Menu: HistoricBridges.org Menu:

We Recommend These Resources:
Bach Steel - Experts at historic truss bridge restoration.

HistoricBridges.org: Bridge Browser

Dubuque Railroad Bridge

Illinois Central Bridge W182

Dubuque Railroad Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 11, 2013

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Railroad (Canadian National) Over Mississippi River
Dubuque and East Dubuque: Dubuque County, Iowa and Jo Daviess County, Illinois: United States
Structure Type
Metal Pin-Connected Pratt Through Truss, Fixed (Rim Bearing Center Pier) and Approach Spans: Metal 10 Panel Pin-Connected Camelback Through Truss, Fixed
Construction Date and Builder / Engineer
1892 By Builder/Contractor: American Bridge Works of Chicago, Illinois

Technical Facts

Rehabilitation Date
Main Span Length
350 Feet (106.7 Meters)
Structure Length
1,535 Feet (467.9 Meters)
Roadway Width
Not Available
1 Main Span(s) and 5 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

2021: John Marvig provides the following additional information: As of 2018, the swing span had been altered (but not replaced, thankfully!).  His research supported the idea that the swing span dates to 1892. As such, HistoricBridges.org is now listing the main construction date as 1892 although note the approach spans were not built until 1899.

Historic railroad bridges on the Mississippi River are at risk. Most are swing bridges. They face a threat from the coast guard that wants to eliminate their center pier from the river by replacing with other movable types like vertical lift bridges. Also, because of the limited number of crossings, those that do exist usually carry a lot of trains are are at risk for alteration or replacement from railroads wanting to run taller and faster trains over them. This bridge is an excellent example of the risk the bridges face. The beautiful Camelback approach spans that lead up to this bridge's swing span have been severely altered. All pin connections have been turned into bolted connections by the addition of gusset plates. This messy alteration drastically changed the appearance of the bridge. However, given that some of these bridges have been totally demolished and replaced, one probably shouldn't complain too much. However, the swing span may be at risk for replacement. It was not altered like the approach spans even though its construction is similar. This may suggest they are preparing for a separate project to demolish and replace the swing span completed. As the most historically significant component of the bridge this would be a devastating loss.

The previous bridge here dated to 1869. Some sources say that regarding the bridge seen today was erected piecemeal (replacing the previous bridge); claims are that the swing span was erected in 1892 but the approach spans were not erected until 1899. Other sources say the whole bridge was built in 1899.

HistoricBridges.org currently only has a small selection of overview photos for this bridge.


Photo Galleries and Videos: Dubuque Railroad Bridge

View Photo Gallery
Bridge Photo-Documentation
Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
View Photo Gallery
Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer


Maps and Links: Dubuque Railroad Bridge

Coordinates (Latitude, Longitude):

View Bridge Location In:

Bridgehunter.com: View listed bridges within a half mile of this bridge.

Bridgehunter.com: View listed bridges within 10 miles of this bridge.

Google Maps

Google Streetview (If Available)

Bing Maps


Apple Maps (Via DuckDuckGo Search)

Apple Maps (Apple devices only)


HERE We Go Maps

ACME Mapper

Waze Map

Android: Open Location In Your Map or GPS App

Flickr Gallery (Find Nearby Photos)

Wikimedia Commons (Find Nearby Photos)

Directions Via Sygic For Android

Directions Via Sygic For iOS and Android Dolphin Browser

USGS National Map (United States Only)

Historical USGS Topo Maps (United States Only)

CalTopo Maps (United States Only)

Home Top


About - Contact

© Copyright 2003-2021, HistoricBridges.org. All Rights Reserved. Disclaimer: HistoricBridges.org is a volunteer group of private citizens. HistoricBridges.org is NOT a government agency, does not represent or work with any governmental agencies, nor is it in any way associated with any government agency or any non-profit organization. While we strive for accuracy in our factual content, HistoricBridges.org offers no guarantee of accuracy. Information is provided "as is" without warranty of any kind, either expressed or implied. Information could include technical inaccuracies or errors of omission. Opinions and commentary are the opinions of the respective HistoricBridges.org member who made them and do not necessarily represent the views of anyone else, including any outside photographers whose images may appear on the page in which the commentary appears. HistoricBridges.org does not bear any responsibility for any consequences resulting from the use of this or any other HistoricBridges.org information. Owners and users of bridges have the responsibility of correctly following all applicable laws, rules, and regulations, regardless of any HistoricBridges.org information.

Admin Login