Johnson Lane Interchange, Billings, Montana, CMGC

MDT delivered this project using the CMGC delivery method because this was Montana’s first DDI, and they wanted to take advantage of the CMGC contractor’s experience to mitigate project risks and resolve construction challenges.  The project improvements include the reconstruction of the existing Johnson Lane Interchange, converting it from a double diamond configuration to a diverging diamond interchange.  Along with the new bridge structures, the project is reconstructing 2.3 miles of freeway improvements, including an 84-inch reinforced concrete pipe storm drain, utility relocations, and new striping, signage, and lighting.  There are short construction windows in this part of Montana.  Despite the short construction window, we were able to collaborate with the CMGC team to optimize the construction schedule.

While constructing the new bridge, we successfully kept traffic open on Jonson Lane.  We successfully designed this project to be built within close proximity to existing businesses.  The project had complex phasing and MOT limitations, utility relocations, and multiple work packages.  During the preconstruction phase, we reduced the normal design duration by 16 months by using the CMGC delivery method.  Based on the successful implementation of this CMGC project, MDT has improved their overall delivery process

The service provided by ICE Teams included independent cost estimating, construction scheduling, lead the risk management, innovation tracking (cost and time savings), and constructability reviews.