HistoricBridges.org Menu: HistoricBridges.org Menu:

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

HistoricBridges.org: Bridge Browser

Rock Island Railroad Bridge

Rock Island Railroad Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: November 11, 2014

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Railroad (Caney Fork and Western) Over Caney Fork River
Rock Island: Warren County, Tennessee and White County, Tennessee: United States
Structure Type
Metal 7 Panel Pin-Connected Warren Deck Truss, Fixed and Approach Spans: Metal 2 Panel Pin-Connected Kingpost Deck Truss, Fixed
Construction Date and Builder / Engineer
1872 By Builder/Contractor: Louisville Bridge and Iron Company of Louisville, Kentucky

Technical Facts

Rehabilitation Date
Main Span Length
210 Feet (64 Meters)
Structure Length
Not Available
Roadway Width
Not Available
4 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This bridge has multiple areas of high significance, which combine to make it one of the most significant railroad bridges in the state. First, the bridge's main spans are rare examples of pin-connected Warren trusses. Pratt trusses were far more common than Warren trusses during the pin-connected era. Warren trusses became popular only after the riveted connection was popular. This bridge's Warren truss spans are configured as two larger spans which are arranged so that the bridge bears on short piers at the bottom chord, and two shorter spans which bear on tall piers at the top chord.

Another notable detail of the Warren trusses is that a third truss line was added to this bridge at a later date in between the original truss lines which would have strengthened the bridge. The third truss line is of heavier construction, indicating its newer construction, but is riveted and uses pin-connections, indicating this is a very old alteration, such that the alteration itself has historic significance.

As rare as the Warren truss spans are, the bridge's approach spans are even more rare and are pin-connected Kingpost deck truss spans. The Kingpost truss configuration is one of the rarest truss configurations among surviving bridges, and it is usually found on highway bridges and as a pony truss. As such, the railroad deck truss Kingpost spans are doubly rare. Frustratingly, these spans are absolutely buried behind trees and are hard to view and photograph even in the winter.

The Kingpost spans did not appear to have a third truss line added like the Warren truss spans.

Although the construction date is not known, this appears to be a very old (1880s?) railroad truss bridge. The unusual truss configuration and lightweight members are one indication of this.

This bridge's main spans including addition of a third truss line are similar to Big Hickory Creek Railroad Bridge


Photo Galleries and Videos: Rock Island 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: Rock Island 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