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GSA Project to Realign I-5S at San Ysidro Port of Entry Begins Sept. 23

September 7, 2017

Roadwork Within Southbound I-5 and I-805 Corridors to Impact Travel

September 7, 2017

San Diego-- The U.S. General Services Administration (GSA) is announcing a series of lane and roadway closures within the southbound Interstate 5 (I-5) and Interstate 805 (I-805) corridors, as part of the effort to modernize and expand the San Ysidro Land Port of Entry (LPOE). Phase 3 of the project will begin September 23, 2017 and will impact southbound traffic lanes on I-5 and I-805 including complete lane closures at various stages of the project.

Travelers are advised to plan ahead for traffic delays; monitor media/traffic reports and posted signage; and, reduce speed through the construction zone. Signs will be posted to announce changes in traffic patterns in the construction area and GSA will issue traffic advisories to promote use of alternate routes. All media and traffic advisories are located in the Region 9 Newsroom. Updates will also be provided on GSA’s Region 9 Twitter page [@US_GSAR9].

The planned work represents a critical milestone for Phase 3 of the project as it begins the re-alignment and expansion of the southbound I-5 corridor from five to 10 lanes as it connects to the Mexican inspection station, El Chaparral, at the international border.

Phase 3 also includes 10 new southbound I-5 vehicular inspection booths, a new southbound secondary inspection facility, and a new employee parking structure. Eight additional northbound vehicle lanes and 15 northbound inspection booths (14 double stacked, one single) will also be constructed to facilitate traffic crossing the border into the United States.

“GSA continues to work closely with local stakeholders and our counterparts in Mexico as we complete the final two phases of the port of entry’s modernization and expansion project,” said Acting Regional Administrator Dan Brown. “Beginning construction of this phase of the project brings us closer to accomplishing our long-term goal of providing a state-of-the art facility for the public. Our immediate objective is to minimize the impact this work will have on travelers, businesses and the binational community.”

This Phase 3 roadwork project will not impact northbound or southbound pedestrian crossing at the LPOE. Pedestrians will continue to cross on the east side of the port and at “PedWest” on the west side of the port.

Travelers can also expect some impact to northbound traffic beginning September 12th as exit lanes onto I-5 north are temporarily reduced at night to accommodate concurrent installation of a sky bridge as part of Phase 2 of the modernization project.

The San Ysidro LPOE is the busiest land border crossing in the Western Hemisphere; more than 70,000 northbound vehicle passengers and 20,000 pedestrians cross the border daily, linking the communities of San Diego and Tijuana into a vibrant binational region. GSA is reconfiguring and expanding the port to accommodate an anticipated growth in vehicle and pedestrian traffic and better meet the changing needs of federal-inspection agencies and the traveling public.

For more information about the San Ysidro Land Port of Entry expansion and renovation project, visit


Detour map showing closures on I-5 and I-805 and rerouting to the Otay Mesa LPOE

Last Reviewed: 2017-09-08