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.
