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This large bridge over a big river and an area called Herman Island is hidden away in a thickly forested area along the river that this highway passes through. Despite being a large bridge over a big river, this is a very difficult bridge to photograph. Typically large river bridges like this are located near cities or population areas, but this bridge is in the middle of nowhere, and surrounded by thick woods. If anyone has made the trek through the woods or taken a boat down the river or perhaps even flown a drone and got photos of this bridge and is willing to share, please contact us!
It is believed that the bridge was designed by Sverdrup and Parcel, as a historical article stated that they did the surveys for the bridge and they were the company that accepted bids.
Bridges of this style are often difficult to classify. This bridge has an arch section that springs from the piers like the Julien Dubuque Bridge, rather than springing from cantilever arms like the Paris Road Bridge. For this reason the bridge appears to function as a continuous tied arch. WJE Engineers reports the bridge as a "three-span, tied arch through-truss bridge" which seems to match this assessment. As such, the bridge is not a pure truss bridge with a suspended deck, it has a tied arch over the main span, and trusses on the side spans, all functioning as a continuous unit. In other words, with no hinges like those seen on the Paris Road Bridge.
Above: Historical photo showing bridge construction from The Decatur Daily Review: October 2 1955.
This bridge is tagged with the following special condition(s): Unorganized Photos
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