Sad U2’s not in town? UDOT to perform bridge act in American Fork this weekend

Pioneer Crossing bridge move in October, 2009

While not as loud or colorful as an uber-famous rock band, a UDOT bridge move is a show worth catching. UDOT is, after all, a world leader in using new technology to replace bridges.

The public will be able to see that technology in action this weekend in American Fork when UDOT moves two segments of a new interchange from a staging area into place overnight on Friday June 4 and Sunday June 6 beginning at about 10:30 p.m. both nights.

The bridge move can be viewed from the existing Main Street Bridge both nights.  Parking will be available at the park-and-ride lot southwest of the interchange.  A flagger will be posted to help visitors enter the viewing area beginning at 9:30 p.m. Visitors will only be allowed to cross the freeway ramps to enter the viewing area at locations where a flagger is present.  Seating will not be provided.

The new segments should be in place sometime in the wee hours of the morning. Once in position, the  segments will form the north bridge of the new Diverging Diamond Interchange at American Fork Main Street.

What to expect

Watching a bridge move is an fascinating but slow process. Workers will be using a Self Propelled Modular Transporters (SPMT) which are multi-wheeled vehicles equip with lifts. The SPMTs are moved using a small box with controls that look like joy sticks. The bridge will be very carefully and slowly rolled into place over hours of time.

These segments are the among the longest and heaviest structures that UDOT has moved, according to Carmen Swanwick, Chief Structural Engineer at UDOT. Asked if those factors pose any difficulties, Carmen said “no, we’ve designed for it.” Engineers are uber-planners, after all.

For more information about Pioneer Crossing and the Diverging Diamond Interchange, please visit the Pioneer Crossing Web site or call the project information hotline at 1-877-222-3757.

6 thoughts on “Sad U2’s not in town? UDOT to perform bridge act in American Fork this weekend”

  1. Akio Ito

    Great article. I’m yet to see the moving of a bridge BUT, I have witnessed the slow moving of a historic building here in Auckland, NZ. Quite a spectacle it was.

  2. Catherine Higgins

    There are bridge moves coming up on the I-15 CORE move in March, so you have not missed your chance to see the SPMTs in action.

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