It's thanks to the work of Idaho State University researchers. The new interchange has a precast concrete pier supporting the 222-foot long and 88-foot wide bridge over the Interstate.

"A precast pier system incorporates structural elements such as columns and girders in a Lego-like construction,” said Mustafa Mashal, associate professor of civil engineering at ISU and ...

Superior Concrete engineers consulted with the utility to design a 175-ft (53-m) long by 10-ft (3-m) high precast concrete wall with a footing/pier system that would require little space — allowing ...

This allowed them to remove sections of both the overlay and precast slabs at the same time. Once the existing pier has been razed, construction will begin in earnest on the new pier. Designed by ...

Winning projects of the 2025 Design Awards were presented at the Precast/Prestressed Concrete Institute Convention in Indianapolis, Indiana on February 6, 2025.