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May Meeting Notice Minneapolis
Date: Wednesday, May 8, 2019
Topic: Baudette Bridge Drilled Shafts

Case Study: Large Diameter Drilled Shafts for the new Baudette/ Rainy River International Bridge Crossing to Canada
MNDOT is working in conjunction with the Ontario Ministry of Transportation to replace the existing Baudette/Rainy River International Bridge since it was deemed structurally deficient. The new bridge was designed to bear on drilled shafts in lieu of driven pile like the adjacent railroad bridge. The bridge design includes four river piers supported on 8’ diameter drilled shafts up to 100’ below river elevation. Piers one and two are located on the United states side of the river and piers three and four are located on the Canadian side. This case study details the technique shaft construction, including the concrete mix design, concrete placement techniques, thermal modeling, thermal integrity profiler results (TIP), and Bi-directional static load test results. Highlights and challenges encountered during construction so far will also be discussed such as removing 3-4’ granite boulders and working in conjunction with US and Canadian authorities.


Location: Rose Vine Hall (downstairs at Grumpy's Bar & Grill)
2801 Snelling Ave. N., Roseville, MN (Mapquest link)
6:00 pm Social Hour, Sponsored by Veit & Company, Inc.
7:00 pm Dinner: Buffet Style
$25 members; $30 non-members
8:00 pm
Presentation — Nathan William Iverson, PE, and Allie Brady, Veit & Company, Inc.

Paid 2018-2019 MGS Members receive a $5 meeting discount on the meal costs listed.
The cost for full-time students is $10, payable to MGS at the door.

Reservations: Register
Requested by noon, Friday, May 3rd, 2019

  (One professional development hour toward continuing education requirements for Professional Engineers is available.)


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