Minnesota Department of Transportation

511 Travel Info

Design-Build

Bridge deck placement

I-35W Bridge over the Mississippi

SP 2783-120, Letting 09/19/07

About the project

State Project Number: 2783-120
E.R. MN 07(300)
Project website: http://projects.dot.state.mn.us/35wbridge/
35W Bridge collapse site: http://www.dot.state.mn.us/i35wbridge/

Cost

  • $234 million

Background

  • On Aug. 1, 2007, the I-35W bridge over the Mississippi River collapsed. MnDOT expedited an emergency design-build contract to replace the collapsed structure by the end of 2008.
  • The project includes reconstruction of I-35W from Washington Ave. to 4th Street, approximately 3/4 of a mile in length. The river crossing includes a 10-lane freeway (five lanes in each direction) with accommodations for future Light Rail Transit.
  • Project layout

Proposal

Project status

  • Opened to traffic fall 2008

Bid results

  • Bid Award Summary (Sept. 10, 2007)

Form 14 proposal price forms

  • Ames-Lunda (JV)
  • C.S. McCrossan
  • Walsh-American Bridge (JV)
  • Flatiron-Manson (JV)

Design-build team proposals

  • Ames-Lunda (JV)
  • C.S. McCrossan
  • Walsh-American Bridge (JV)
  • Flatiron-Manson (JV)

Design-build visualizations

  • Ames-Lunda (JV)
  • C.S. McCrossan
  • Walsh-American Bridge (JV)
  • Flatiron-Manson (JV)

Request for proposals - 8/23/07

RFP addenda

Request for qualifications

  • RFQ (PDF, 0.5 MB) - 8/4/07 - the SOQs were due Aug. 8, 2007 at 6:00 a.m.