San Luis I Land Port of Entry


Constructed in 1984, the San Luis I Land Port of Entry (LPOE) is the second busiest non-commercial LPOE in Arizona, processing over 3 million vehicles and 2.5 million pedestrians each year. Originally the port processed both commercial and non-commercial traffic. In 2010, commercial operations shifted to a new port referred to as San Luis II LPOE, located approximately 8 miles from San Luis I.

The port no longer meets the mission requirements of CBP. Existing facilities are significantly undersized and all major building systems are past their useful lives. Expanding and renovating facilities will result in reduced wait times and increased processing capacity for pedestrians and cross-border travelers.

GSA received partial funding for the renovation and expansion of San Luis I in the President’s 2020 Budget. To best use current funds while keeping the port fully operational, GSA is creating a master plan for the project and the work will be broken into two phases.

Phase I will include site development and infrastructure, expanded northbound (NB) privately owned vehicle (POV) lanes, NB primary and preprimary inspection canopies, associated NB secondary processing, expanded southbound (SB) POV lanes, SB primary and secondary inspection and processing building, parking and more. Phase II will focus on pedestrian, administrative, and other facilities to support the CBP mission.

A smaller project to build a new pedestrian annex was completed in September 2018. The $6 million project included an 8,000-square-foot expansion that increases processing capacity, and includes new offices and public spaces.


  • The LPOE is the westernmost Arizona port near the California border (approximately 4 miles) and is the primary crossing location for farmworkers transported to agricultural fields daily across Yuma County
  • Processes approximately 3 million vehicles and 2.5 million pedestrians each year
  • Minimize impacts to the natural environment, including vegetation, water resources and floodplains

Environmental Review: GSA conducted an environmental impact statement (EIS) for the project.

Tenant Agencies: U.S. Department of Homeland Security - Customs & Border Protection, and Immigration and Customs Enforcement, and GSA.


  • Expansion of northbound pedestrian-processing facilities will increase from seven to 10 lanes, reducing screening times and increasing visitor and employee safety
  • Modernize processing equipment
  • Redesign of pedestrian circulation flow to support current U.S. Department of Homeland Security - Customs and Border Protection procedures
Last Reviewed: 2021-04-19