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Home | Local + Metro | The I-35W bridge collapse

Update: I-35W bridge progress

Last update: February 4, 2008 - 5:32 PM

The first concrete support for the new Interstate 35W bridge is rising from the foundation on the bank of the Mississippi River, one of the visible signs of progress on the project.

Below the ground

Much of the construction so far has focused on 109 foundation shafts that were drilled 30 to 95 feet deep and filled with steel-reinforced concrete. The 40 deeper shafts are completed, and others are underway.

Milestone

Last week, workers completed the first of 120 concrete bridge superstructure segments for the main span, which are being pre-cast on the site. They will eventually be joined with massive steel tendons.

Workforce

About 130 to 150 workers are now on the site, and the number will probably reach 600.

PROJECT UPDATES

www.dot.state.mn.us

Source: Interview with MnDOT Project Manager Jon Chiglo.
 

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