I-5 Closure Today: Bypass Traffic Chaos in Southern California - Easy Alternatives (2025)

Imagine being stuck in a 2-hour-and-20-minute detour when your usual drive is just 23 minutes—all because of a military exercise shutting down a major highway. That’s the reality for drivers today on Interstate 5 near Camp Pendleton in Southern California. But here’s where it gets even more complicated: this isn’t just any road closure—it’s a 17-mile stretch of one of California’s busiest traffic arteries, with no nearby alternatives connecting Los Angeles and San Diego. And this is the part most people miss: the closure isn’t just about traffic; it’s also disrupting rail services like Amtrak’s Pacific Surfliner and Metrolink. So, what’s really going on here?

The U.S. military is firing live artillery rounds over Interstate 5, a move directed by the White House, according to the California Department of Transportation. The closure, which began at 11 a.m. and lasts until 3 p.m., affects the portion of the highway running alongside Marine Corps Base Camp Pendleton—a sprawling 125,000-acre installation. This effectively cuts off the primary link between Orange County’s southern coast and San Diego County’s northern beach cities. Motorists are forced to take a massive detour via Interstate 15, turning a 22-mile trip into a 138-mile marathon—and that’s without considering the inevitable traffic backups.

But here’s the controversial part: Is this military exercise worth the disruption to thousands of commuters and travelers? While national security is undoubtedly a priority, the closure raises questions about timing and alternatives. Could this have been scheduled during off-peak hours, or are there other routes that could have been better utilized? Let’s dive into the details.

Where Exactly is the Closure?
The affected area stretches from Basilone Drive just south of San Clemente to Harbor Drive north of Oceanside. If you’re planning to travel today, here’s what you need to know:

Alternative Routes to Navigate the Chaos:
- From San Diego County to Los Angeles County: Take Interstate 15 north through Temecula and Lake Elsinore, then switch to Route 91 west toward Los Angeles.
- From Los Angeles County to San Diego County: Head east on Route 91 through Corona, then south on Interstate 15.
- From Orange County to San Diego County: Use Route 55 north to Route 91 east, followed by Interstate 15 south.
- From San Diego County to Orange County: Go north on Interstate 15 to Route 91 west, then south on Route 55.

Why This Matters Beyond Today
Interstate 5 has long been a bottleneck for California traffic, with no viable alternatives between Los Angeles and San Diego. This closure highlights the fragility of our transportation infrastructure and the ripple effects of even temporary disruptions. It’s a stark reminder of how reliant we are on a single highway—and how quickly things can unravel when it’s shut down.

Food for Thought
Is California doing enough to address its traffic choke points? Should there be more investment in alternative routes or public transportation? And what about the environmental impact of detours that triple driving distances? These are questions worth debating—and we’d love to hear your thoughts in the comments. Whether you’re a daily commuter or just an observer, this situation affects us all. So, what’s your take? Is this closure a necessary inconvenience, or a sign of deeper systemic issues?

I-5 Closure Today: Bypass Traffic Chaos in Southern California - Easy Alternatives (2025)

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