Grand Tower, Illinois: Texas-
Illinois Natural Gas Pipeline Mississippi River crossing
The towers are 245 feet tall; the cross supports are 225 feet long; the bridge length is 2161.5 feet.
I actually liked algebra and trig in High School. If they had told us that sines, cosines and tangents had applications like this, I would have loved them.
The following website has photos and lots of interesting technical stuff about trains, planes and automobiles, and bridges. Here is the page about this bridge:
http://www.johnweeks.com/river_mississippi/pagesC/umissC13.html
Grand Tower, the city, is 30 miles north of Cape Girardeau.
The following web page is about Grand Tower, the city. Then go to their home page to find a cool website about two St. Louisians' explorations of the entire Mississippi River including all the towns that front on the river:
http://users.stlcc.edu/jangert/grndtwr/photos.html
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