Big I Project - PB&A Inc

Big I Project

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The largest single highway construction project in the history of New Mexico, the “Big I” project, involves a total redesign and reconstruction of the area’s major freeway interchanges. Primary features of the project include adding lanes in some areas, improving efficiency and safety, constructing two-lane frontage roads running continuously from the north to the south of the project area, and eliminating all left-hand on and off ramps.

PB&A used a mixed design including a post-tensioned tangent pile solution for permanent soil stability of the 25 ft. excavation along a 45,000 ft. roadway. With the use of varying methods of shoring, substantial cost savings were realized by the general contractor, Twin Mountain (division of Keiwit) throughout the course of construction.

 

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