Probably some of you saw this on the national news last night, but here’s a link to a local news story: http://www.wtol.com/Global/story.asp?S=1647474
The Ohio Dept of Transportation has been building us a new Maumee River crossing on I-280 for the past year or so. Oddly enough, it is replacing one of the very few drawbridges in the entire Interstate System. This project is, according to ODOT, the largest single-site road construction project ever undertaken in Ohio - over $220 million. It is intended to be a six-lane beautiful cable-stayed bridge when complete. The main span is supposed to be nearly 1100 feet long, the cross-river traffic surface will be 135 feet in the air, on and off ramps wind around and travel beneath the main span. The two main pylons will be over 400 feet above river level when the pouring of the concrete is complete; they’ll be nearly as tall as the tallest building in Toledo. The main pylons are to incorporate a kinda stained-glass motif and be lit at night from inside the pylons. I haven’t been able to find a good artist’s rendering of the completed bridge. If anyone else finds one, please link it here.
Yesterday, one of the two main cranes, called “launching trusses” used for lifting the huge concrete sections (85 tons each) into place to form the south-bound three lanes collapsed and fell to earth. 3 are dead and a few more injured. The launching truss fell between the existing north and southbound lanes of I-280 traffic that is being maintained through the construction site. The truss itself weighed 2 million pounds and was over 300 feet long.
Since I’m a bit of a geek, I liked to drive through the construction site on I-280 about once a week. The pictures in the above article don’t really show the scope and magnitude of this project. It is truly amazing to see from ground level - even at 30 MPH.
If you go to this web page and click the link that says “Interactive Project Journal” you can view lots more pictures of the various phases of construction. Click the main span portion in the window that pops up. Selecting picture #6 will shows the truss mounted on top of the road surface.