Knife River

Irwin Rapoport – CEG Correspondent - Mon December 14, 2020

Knife River Executes Bridge Slides on I-84

The twin east-west bridges – 112 ft. long, two lanes each – at the Blacks Creek Interchange on I-84 in Ada County, Ida. (20 mi. east of Boise and built in 1963) reached the end of their lifespan and have been replaced – hence the Idaho Transportation Department's (ITD) $12.1 million project awarded to Knife River Corporation that had prefabricated two new bridges off-site that were eventually slid into place....

Irwin Rapoport – CEG Correspondent - Tue May 05, 2020

Knife River Corp. Replacing 80-Year-Old Idaho Bridge

Knife River Corporation is constructing the Idaho Transportation Department's (ITD) $7.3 million U.S. 95 Weiser River Bridge Replacement project, which involves rebuilding a two-lane structure that has been in existence for more than 80 years dating back to 1939....

Idaho Transportation Department - Tue April 09, 2019

Idaho Transportation Department Begins Bridge Replacements

The Idaho Transportation Department will begin work April 1, 2019 on two bridge construction projects along U.S.-20. The new crossings will be located over Willow Creek in Camas County (MP 164) and Rock Creek in Blaine County (MP 173)....

Andrea Watts - CEG Correspondent - Wed December 06, 2017

Cellulose-Infused Concrete Is One Step Closer to Reality

On a sunny summer day at Oregon State University, before an audience of researchers and representatives from the construction industry, a Knife River-owned ready-mix cement truck poured a batch of concrete....