Structure B-37-364 Construction Analysis

Quarterly Reports Other Documents Final Report
 See CFIRE 03-05

Primary Investigator

Mike Oliva
University of Wisconsin – Madison
1415 Engineering Drive, 1214 EH
Madison, WI 53706


The I-35W Mississippi River bridge was an eight-lane steel truss arch bridge that carried 140,000 vehicles daily across the Mississippi River in Minneapolis, MN. On August 1, 2007, the bridge collapsed.  This accident has lead to additional emphasis on bridge performance monitoring across the nation.


Develop construction guidelines for use in obtaining the vertical road profile over bridge piers by accounting for deflections during construction.


  1. Develop a complex analytic model of a unique “7” shaped highway bridge pier and predict/match deflections measured on an actual structure.
  2. Use model to develop construction guidelines to use in obtaining the correct vertical road profile over the piers by accounting for deflections as construction progresses.

Project Information

  • Duration: 3 months
  • Dates: 9/24/2007 – 12/24/2007
  • Budget: $1,350
  • Student Involvement: None
  • Modal Orientation: Highway
  • Project ID: CFIRE 02-19
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