Matt Clayton, Marketing Manager, 801.802.6963 (work), 801.494.3394 (cell),


I-15 West Mesquite Interchange Bridge Slide

MESQUITE, Nevada – January 10, 2012 – The Nevada Department of Transportation (NDOT), along with the Southern Nevada Regional Transportation Commission and the Design-Build team of W.W. Clyde & Co. and Horrocks Engineers, will be making Nevada’s first transverse bridge slide for the I-15 West Mesquite Interchange project on January 10, 2012.

The project uses the innovative technology of accelerated bridge construction (ABC), which has been successfully used in several other states. New I-15 bridges will be constructed on temporary foundations adjacent to the current bridges. Each existing bridge will be demolished, and the new bridges will be slid into place overnight using hydraulic jacks, Teflon rails, and liquid dish soap for lubrication. Once the bridges are in their permanent positions, the roadway paving will be completed.

This entire process takes 56 hours for each bridge, during which time I-15 traffic will be diverted using the freeway on-and off-ramps. By using ABC technology and an unconventional traffic plan, I-15 traffic will be able to flow in both directions throughout the entire bridge slide, greatly reducing the inconvenience to the traveling public.

In addition to the reconstructed bridges, the current diamond configuration of the I-15 interchange 120 in West Mesquite will be updated to a roundabout interchange, exit and on ramps will be improved, and Falcon Ridge will be widened to increase access, safety and traffic flow.

NDOT and the Design-Build team invite you to join us in Mesquite January 10, 2012 to watch Nevada’s premier bridge move. This event will be open to the public.

Horrocks Engineers is the civil design engineer and W.W. Clyde is the contractor for the project.

For more information about W.W. Clyde & Co., please visit  or call 801.802.6900.

About W.W. Clyde & Co. 

Springville, Utah-based W.W. Clyde & Co. has been constructing interstate highways, roadways, bridges, dams, airports, mines, golf courses, environmental reclamation projects, site preparation and other types of large construction projects in the Intermountain West since 1926.