I-35 W Mississippi River Bridge Disaster
November 10, 2008
TYLER W. ROSE
Student, East Carolina University
The purpose of this paper is to explain why the I-35W Mississippi River Bridge in Minneapolis, Minnesota failed. It will also show why it is important not to cut corners in business.
This paper will include:
• A background on the history of the bridge
o The designers, and construction companies involved
o When construction began and completed
o Key information about the bridge
• The collapse
• Discuss key points that may have been reasons the bridge failed
o Initial design flaws
o Minnesota weather changes
o Prior improper maintenance
o Surrounding variabilities
Work done on the bridge the day of failure
Adjacent train track
Rush hour and slow-moving traffic
Minnesota Twins baseball game
• Discuss how this disaster could have been avoided
o Better initial design
o Construction at night, or different season
o More thorough inspections
• Changes in legislation afterwards
Background on the I-35W Mississippi River Bridge
The I-35W Mississippi River Bridge in Minneapolis was a major vein in the traffic flow for downtown. The bridge carried approximately 140,000 people each day across the Mississippi River to downtown Minneapolis. The bridge was built in 1967, where its claim to fame was its 458 foot span across the Mississippi River. (Weeks)
• Federal identification number 9340
• Designed by Sverdrup & Parcel
• Built in 1964 by Hurcon Inc. and Industrial Construction Company
• Industrial Construction Company constructed steel trusses and deck in the summer of 1965.
• Bridge opened to traffic in 1967.
• Original cost for the...