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I-35W/Hwy 62 Crosstown Bridges

Project Highlights

The I-35W/Crosstown Commons Area is heavily congested, has high crash rates and requires weaving between lanes. After several years of design setbacks due to unacceptable traffic closure periods, the Minnesota DOT pursued precast segmental alternatives in order to minimize erection times and traffic closures. Closures for major movements during construction are estimated to be no longer than two months.

Our Role

McNary Bergeron & Associates is providing construction engineering services, including integrated segment shop drawings, construction analysis, step-by-step erection procedures, falsework design, and geometry control.

Construction Method and Specifications

  • Precast segmental bridges built using the balanced cantilever method with ground-based cranes

  • Segments are constructed using the shortline precasting method

  • Six segmental bridges with typical span lengths of 200 ft

  • Deck widths ranging from 33’-4” to 45’-4”

Owner

Minnesota Department of Transportation

Contractor

Ames / Lunda / Schafer (Joint Venture)

Total Contract Value

$288 million

Timeline

June 2007 to November 2009

Project Website

http://www.dot.state.mn.us/projects/crosstown/index.html

Project Photos

 

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