ABKJ provided engineering consultation services to the Arizona Department of Transportation for removing load and geometric restrictions from a 616’ arch bridge over the Grand Canyon of the Colorado River. The selected alternative was a new 726’ steel arch span constructed adjacent to the existing bridge. ABKJ was responsible for design criteria and procedures, independent design check, and erection concept design and analysis.
ABKJ is a design services firm headquartered in Seattle, Washington known as the US Global Center. Founded in 1956, we have provided leadership and support for the most challenging and recognizable projects in the Pacific Northwest, across the United States, and around the world for private and public clientele requiring the highest level of capabilities.