Type of Job:  27.6 mile controlled-access, Extension of State Highway 121
Cost:  $153M
Duration:  2011-2014
Location:  City of Fort Worth, TX
Project Status:  Complete
Client:  North Texas Toll Authority
Sterling Company:  Texas Sterling Construction

NTTA contracted Texas Sterling Construction to construct two major segments of the Chisholm Trail Parkway (CTP).  The complex, heavy-transportation project included construction of the I20 interchange and Sections 3b and 5 including about 6 miles of highway from Dirks Road to FM 1187.  This multi-level highway in the Dallas/Fort Worth area presented a mix of challenges and requirements: Grading, Drainage, Structures, Concrete Pavement, Mechanically-Stabilized Earthen (MSE) Retaining Walls, Illumination, Signs and Sign Structures, Pavement Markings, Intelligent Transportation System (ITS) Infrastructure, Landscaping, Irrigation, and continued Maintenance Services.  A 12-bridge structure was the signature element in the complex project, and work was completed with highway traffic already using the transportation enhancements adjacent to TSC crews performing construction.