HistoricBridges.org Menu: HistoricBridges.org Menu:


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

HistoricBridges.org: Bridge Browser

Lacon Bridge

Lacon Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: April 13, 2013

View Photos
and Videos
View Maps
and Links

Facility Carried / Feature Intersected
IL-17 (5th Street, Ferry Street) Over Illinois River
Location
Lacon and Sparland: Marshall County, Illinois: United States
Structure Type
Metal Continuous Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1939 By Builder/Contractor: Bates and Rogers of Chicago, Illinois
Rehabilitation Date
1990
Main Span Length
378.0 Feet (115.2 Meters)
Structure Length
1,573.2 Feet (479.5 Meters)
Roadway Width
26.2 Feet (7.99 Meters)
Spans
3 Main Span(s) and 8 Approach Span(s)
Inventory Number
62000314852

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This bridge has a distinctive appearance because its top chord and end posts visually seem comparatively smaller than one would expect to the point where they do not look much larger or heavier than the other truss members. As such, from a visual standpoint, all the members and chords on the bridge look to be about the same size. This is quite different from a traditional bridge of this design.

This is one of those bridges that looks exactly like a cantilever truss, with a variable depth truss forming "towers" over the piers, however it appears to lack hinges which means that it functions as a continuous truss, not a cantilever truss. As such, it does not have a suspended span.

A series of steel stringer spans provide an approach to the through truss spans.

HistoricBridges.org currently only has a partial photo-documentation of this bridge. Missing are detail photos taken from on the bridge.

Above: These photos taken in 1937 show the previous bridge at this location shortly before it was replaced. It was a pontoon swing bridge. A metal pony truss approach span is also visible.

Above: This photo shows the previous pontoon bridge swung open for boats to the right in the photo.

Above: Taken in 1939, these photos show the current bridge shortly after it was completed.

Divider

Photo Galleries and Videos: Lacon 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

Divider

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

Divider

View Video

CarCam: Westbound Crossing

Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

Divider

Maps and Links: Lacon Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Additional Maps:

Google Maps

Google Streetview (If Available)

Bing Maps

OpenStreetMap

GeoHack (Additional Links and Coordinates)

Apple Maps (Via DuckDuckGo Search)

Apple Maps (Apple devices only)

MapQuest

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)

Historic Aerials (United States Only)

CalTopo Maps (United States Only)


Divider
 
Home Top

Divider

About - Contact

© Copyright 2003-2024, 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

Divider