2010 Top 10 Roads - No. 9

Oct. 2, 2011
PROJECT: Pioneer Crossing Design-Build
LOCATION: American Fork, Utah
COST: $172 million
LENGTH: 6 miles
DESIGNER: Parsons Transportation Group
CONTRACTORS: Kiewit Western Co./W.W. Clyde & Co.

American Fork has one less sticking point. A diverging diamond interchange (DDI) bridge at I-15 replaces the existing diamond interchange and includes new ramps and I-15 widening. The DDI, which provided a cost savings of $17 million, includes twin, two-span prestressed concrete girder structures. The spans marked the longest and heaviest documented of its kind moved by self-propelled modular transporters in the U.S.

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