San Ysidro border crossing. Photo credit: YouTube.

A planned closure of the San Ysidro Port of Entry for 57 hours straight has officials conjuring up the July 2011 nightmare of Carmageddon, when the 405 Freeway was shut down in Los Angeles for a weekend.

“The closure will affect tens of thousands of drivers, students, commuters, shoppers and others who regularly travel between San Ysidro and Tijuana, passing through the busiest border crossing in the Western Hemisphere,” The San Diego Union-Tribune reported.

The temporary border closure — slated for Sept. 23 at 3 a.m. until noon on Sept. 25 — is part of a $741 million expansion project for the crossing.

All vehicle traffic crossing into Mexico during the closure period will be rerouted to Otay Mesa, where Mexico has only five inspection lanes, the U-T report continued.

The massive expansion project is scheduled for completion in June 2019 and calls for re-building the southernmost stretch of Interstate 5 as it leads into Tijuana’s El Chaparral Port of Entry. According to the U-T report, the southbound side of the freeway will be expanded to 10 lanes and eight additional traffic lanes will be added to northbound inspection crossing.