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Longest Simple Truss Bridge
Longest Simple Truss Bridge, This is the Brookport Bridge over the Ohio River, one of the longest simple truss spans in existence. It may be one of the longest simple truss spans ever built, at least in the first half of the 20th Century. Video Below
I was taking photos down by the river at sunrise and a car pulled up next to me. A woman got out and introduced herself, she was a local in the area and was excited that someone was taking pictures in her little town. This spot is one of her favorite spots to sit and enjoy a sunrise before she heads off to work.
Well, she continued to tell me about the area and mentioned this bridge here, that it is a historic bridge that you can still drive across and that most people don’t because it is very narrow and old. But thanks to her telling me about it, we had to go investigate.
It is by far the coolest bridge I have yet to cross and take photos of. There is a short video below and yes it was a little unnerving to go across it. Mainly because it is so long, one would hate to get a flat tire in the middle of this bridge.
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One of the unusual details of this bridge, is that the largest span is at the southern end of the bridge, not in the middle. The navigation channel was located at the south side of the river. However, there was an additional navigation channel in the more traditional middle of the river, and to accommodate this second navigation channel there is a truss span which at 514 feet long is larger than adjacent spans (measuring 396 feet), but not as large as the 716 foot span.
Video Crossing the Bridge;
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The 716 foot span has some additional unusual details. While the roadway maintains the same narrow 19.7 foot width, the 716 foot span is notably wider (distance between trusses) so on this span there is a gap between the edge of the roadway and the truss lines. The reason for this is presumably for stability reasons. The trusses of the bridge are incredibly deep (tall) due to the span length, and the extra width probably helps keep the bridge from becoming top heavy and tipping over in high winds.
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Visually this is a spectacular bridge. A must see if you are ever in the area of Metropolis Illinois.
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Longest Simple Truss Bridge