Mariposa LPOE Project Facts

The Mariposa Land Port of Entry is one of the busiest land ports in the United States. It serves as the main port of entry for fresh produce entering the United States from Mexico and the primary produce distribution point on the southern border. As one of GSA’s largest American Recovery and Reinvestment Act projects, expansion and modernization of the port will enable the Department of Homeland Security’s U.S. Customs and Border Protection to more effectively perform their mission by improving efficiency, security and safety for officers and the traveling public. The project is also expected to have a direct and significant impact on the local economy and job creation in the area.

The project consisted of the demolition and new construction of all facilities within the land port of entry. This included primary and secondary inspection areas for both commercial and non-commercial vehicles, a new administration building, a pedestrian processing facility, a new canine kennel, and other support structures. Approximately 13 acres adjacent to the port were acquired to accommodate the expansion.

The new port of entry was certified LEED® Gold through a combination of a solar domestic hot water system, advanced lighting, rainwater harvesting and building automation systems.

Project Update

The final Phase 4 of the Mariposa LPOE expansion and modernization project was completed on August 20, 2014. The port has increased the number of northbound privately owned vehicle (POV) and commercial inspection lanes to 12 and eight, respectively. Other Phase 4 elements included three southbound inspection booths and the remainder of the northbound commercial inspection building, resulting in 13 additional docks.

Phase 3 of construction, completed in November 2013, turned over all operational areas to U.S. Customs and Border Protection. These new operational areas include six POV inspection booths, new northbound commercial inspection building and docks, northbound pedestrian walkway, and main administration building. Southbound improvements in Phase 3 also included three southbound booths (one commercial and two POV), southbound pedestrian walkway, and inspection building and docks.


  • U.S. Customs and Border Protection (CBP)
  • U.S. Food and Drug Administration (FDA)
  • U.S. Department of Agriculture (USDA)

Sustainability Goals

  • LEED® Gold Certified
  • Solar domestic hot water
  • Advanced lighting
  • Building automation systems
  • Rainwater harvesting
  • Native species landscaping


Last Reviewed 2016-03-09