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San Diego-Tijuana Cross Border Xpress (CBX)

  • San Diego-Tijuana Cross Border Xpress (CBX)
  • San Diego-Tijuana Cross Border Xpress (CBX)
  • San Diego-Tijuana Cross Border Xpress (CBX)

Kleinfelder served as the structural and geotechnical engineer-of-record for this 390-foot long international border crossing between San Diego and Tijuana, which opened in December 2015. The high-profile, high-security project enables ticketed passengers flying into or out of Tijuana’s international airport to circulate across the international border between two terminal buildings.

Aesthetics and Functionality

The client, OTV, placed considerable importance on creating a cost-effective structure that emphasized aesthetics and functionality. The project—a modified design-build—required tight collaboration with multiple stakeholders, including bi-national and bilingual coordination between the design team and contractors on both sides of the border. Moreover, engineering a building within a bridge structure across international lines required that engineers design to satisfy both building and bridge specifications. Additional features such as moving walkways, lights, mechanical systems, fire life safety, and HVAC added complexity to the structure.

A Solution for Limited Site-Accessibility 

Kleinfelder’s design consisted of a pair of steel through-trusses with three simply-supported spans ranging from approximately 115-150 feet. In addition to ensuring the integrity of the crossing—essentially a horizontal building installed within a bridge structure—this also was the optimal solution to accommodate limited site-accessibility and maintain the Tijuana terminal operations during construction. The bridge is supported on four reinforced concrete pier walls and cast-in-drilled-hole concrete piles, all designed to fit aesthetically in the structure’s overall look and feel.

Project Results 

Kleinfelder was instrumental to this complex bridge project that blends engineering and construction excellence with bi-national collaboration. Our integrated bridge and geotechnical expertise proved critical for moving the project swiftly from its initial phase of development through the end of construction. Not only was the project completed on time and on budget, it also meets the structural and aesthetic requirements of stakeholders and agencies in both the U.S. and Mexico.

Project Details

San Diego, California; Tijuana, Mexico

Otay-Tijuana Venture, LLC

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