Members of the I-35E MnPASS Design-Build project team accepted a Grand Award at ACEC/MN’s 50th Awards Banquet held on January 27th. The awards honor projects that improve communities, require detailed planning and execution, utilize innovative techniques, and expand the knowledge base for the engineering profession.
“I-35E MnPASS was a complex, schedule critical project,” said John Dillingham, President of Alliant Engineering. “MnDOT, Ames and Alliant collaborated to deliver the project in two construction seasons, with limited effect on traffic or accessibility, and at the same time served the high volume of motorists near downtown St. Paul, Minnesota.”
One of the innovations utilized was the use of Accelerated Bridge Construction (ABC) for the first time on a MnDOT project. By using ABC, MnDOT was able to greatly reduce the closure of the Larpenteur Avenue Bridge, a vital east-west route. Crews constructed the new bridge superstructure adjacent to the existing operational bridge and then slid it into place during overnight hours. MnDOT invited the public and DOT representatives from other states to come view the operation from established vantage points and many came to witness the bridge slide firsthand.
“The goal of the awards program is to showcase the best engineering projects designed by Minnesota consulting engineers and to recognize firms and clients for their efforts in making our communities better and safer places to live,” said Kristine Cassidy, Assistant Executive Director of ACEC/MN.