File:The Great River Bridge Burlington Iowa From California Zephyr.jpg

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Construction began in 1989, but work on the main tower did not begin until April 1990. The main tower is 370 feet (113 m) in height from the top of the tower to the riverbed. During the Great Flood of 1993, construction continued despite record crests on the Mississippi below. The final cost of the bridge was $49 million, about 16 percent over budget.

The Great River Bridge replaced the MacArthur Bridge, an aging two-lane, cantilevered, steel toll bridge built in 1917. At the time, the bridge was in desperate need of repair, or replacement, as it swayed ominously when two semis crossed the bridge at the same time on the two lanes of traffic. After the bridge was dismantled, the engineers discovered that the supports weren't sunk into the bedrock far enough, causing undermining of the piers. All that remains of the original bridge is the central pier, which has several high water marks from its time in the Mississippi River. The new bridge is five lanes wide (two westbound, three eastbound), with piers sunk over 90 feet into bedrock, and provides a safer crossing across the Mississippi River than the old bridge
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Source Flickr: The Great River Bridge Burlington Iowa From California Zephyr
Author Steve Wilson
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This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 23 December 2012, 20:55 by Glabb. On that date, it was confirmed to be licensed under the terms of the license indicated.
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current20:55, 23 December 2012Thumbnail for version as of 20:55, 23 December 20121,855 × 1,247 (223 KB)Flickr upload bot (talk | contribs)Uploaded from http://flickr.com/photo/36989019@N08/5333306416 using Flickr upload bot

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