Interstate 5 has reopened after a temporary closure due to a military event at Camp Pendleton. This reopening covers a span of 17 miles, from Harbor Drive in Oceanside to Basilone Road near San Onofre, and followed warnings about heavy traffic delays.
Traffic Conditions Amid Military Activity
Officials expect ongoing congestion as live-fire artillery rounds will be conducted over the highway during this military operation. The California Highway Patrol’s plan includes conducting traffic breaks when the artillery is fired. This situation may cause alarm for drivers, as the loud noises can be startling.
Closure Details
- Date: October 18, 2025
- Closure Hours: 11 a.m. to 3 p.m.
- Location: I-5 from Harbor Drive in Oceanside to Basilone Road
- Traffic Impact: Significant delays expected; at least 30 minutes for those beyond warning signs.
Reports indicate that some drivers attempted illegal maneuvers, such as making sudden U-turns to bypass the traffic jam near El Camino Real. Highway Patrol intervened to address this situation.
Government Response
California Governor Gavin Newsom has criticized the White House’s lack of coordination regarding safety measures for the military event. He expressed concerns over public safety, suggesting that live-fire activities over busy highways could be dangerous. This increased tension has highlighted ongoing strains between California and the federal government, particularly with recent policies and military operations.
In communications leading up to the event, Newsom’s office was informed about the impending closure only hours before the announcement, citing safety considerations concerning the artillery firing. Initial assurances stated that live rounds would not be fired over the interstate, conflicting with later reports that prompted the closure.
Detours and Recommendations
Drivers have been advised on alternative routes to avoid congestion:
- Travelers in San Diego County should take State Route 15 north.
- For journeys from San Diego to Los Angeles, consider using I-15 north to State Route 91 west.
- Travelers heading to Orange County should take I-15 north, then SR-91 west and SR-55 south.
Military Event Background
The military exercise, deemed vital for showcasing amphibious capabilities, is part of a larger celebration of the Marine Corps’ 250th anniversary. The event is organized to reinforce the readiness of the Navy-Marine Corps team and highlight their commitment to national defense.
Despite prior announcements indicating no necessary closure of highways for this demonstration, the situation at Camp Pendleton has prompted alternative considerations. The military assures that all safety measures are in place, yet Governor Newsom insists that the risks associated with live ordnance warrant careful scrutiny.
As the event unfolds, officials will continue to monitor the traffic situation and provide updates to ensure the safety of all travelers on Interstate 5.
