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Iroquois 750 Bridge

TR-323 Bridge

Iroquois 750 Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 13, 2006

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Key Facts

Facility Carried / Feature Intersected
Iroquois 750 Over Little Mud Creek Tributary
Location
Rural: Iroquois County, Illinois: United States
Construction Date and Builder / Engineer
1908 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
40 Feet (12 Meters)
Structure Length
41 Feet (13 Meters)
Roadway Width
15.7 Feet (4.79 Meters)
Spans
1 Main Span(s)
NBI Number
38303809202

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge no longer exists!

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

This historic bridge was demolished and replaced in 2007!

This was a small three panel pin connected half-hip Pratt pony truss. It featured v-lacing on the verticals. The eye bars were of the loop-forged variety. The deck was wood. The bridge was in decent condition, but it had one serious but easily fixed issue. One of the top chord pins lost the nut on the outside end of the pin, and the pin had slipped inside the top chord. The pin sat sticking partially out on the road side of the truss, while the other end rests on the inside of the top chord, barely continuing to hold its diagonal. This was a serious problem that compromised the bridge's ability to carry loads. However, the fix would have been extremely simple. All someone needed to do was to push the pin back through and put a nut back on it. Rather than buy a nut, and perhaps make a few more minor repairs to keep this bridge able to serve the 25-60 vehicles that crossed it each day, Iroquois County went overkill and spent considerable tax dollars to completely destroy and replace this beautiful historic bridge with an ugly slab of concrete.

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Photo Galleries and Videos: Iroquois 750 Bridge

 
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Maps and Links: Iroquois 750 Bridge

This historic bridge has been demolished. This map is shown for reference purposes only.

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