HistoricBridges.org Menu: HistoricBridges.org Menu:


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

HistoricBridges.org: Bridge Browser

Iroquois 500 Bridge

TR-345A Bridge

Iroquois 500 Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: May 8, 2010

View Photos
and Videos
View Maps
and Links

Facility Carried / Feature Intersected
Iroquois 500 (TR-345A) Over Spring Creek Tributary
Location
Rural: Iroquois County, Illinois: United States
Structure Type
Concrete Through Girder, Fixed
Construction Date and Builder / Engineer
1916 By Builder/Contractor: Joseph Klein of Freeburg, Illinois
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
51.0 Feet (15.5 Meters)
Structure Length
52.5 Feet (16 Meters)
Roadway Width
18 Feet (5.49 Meters)
Spans
3 Main Span(s)
Inventory Number
38432909224

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

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

This bridge is an excellent example of a standard plan concrete through girder in Illinois. The bridge is unaltered and retains near-perfect historic integrity, and also remains in good structural condition despite never having been repaired or rehabilitated. The only major blemish on the bridge is spalling at the end of a girder. The bridge is a relatively long span for a concrete through girder, although in Illinois and Iroquois County there are larger span examples. This bridge is also significant for its very early 1916 construction date. It was around this time when concrete girders began to be built with frequency. As such, this bridge should be considered historically and technologically significant. Concrete through girders are a nationally rare structure type today. Their popularity only lasted for about 20 years, mainly between 1915 and 1935, mainly because they were inefficient for deck widths much wider than 22 feet. Michigan and Illinois both appear to have the largest numbers of surviving concrete through girders in the country. This does not mean either state has a large actual number however. As such, surviving examples that have integrity should be considered to have historic value. The bridges tend to be heavily built and very durable. Those examples that are located on quiet rural roads such as this one make good candidates for preservation.

Divider

Photo Galleries and Videos: Iroquois 500 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

Maps and Links: Iroquois 500 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