I-5 Freeway Closed in San Clemente for Military Exercise, Sparks Criticism

A 17-mile stretch of Interstate 5 near San Clemente was periodically closed today, October 18, 2025, to facilitate a live-fire artillery exercise at Marine Corps Base Camp Pendleton, leading to significant traffic delays and a dispute between California officials and the federal government.

The southbound 5 Freeway came to a standstill around mid-morning approximately half a mile before the El Camino Real exit, with preceding exits displaying warning signs of the impending closure. Some motorists attempted to circumvent the congestion by illegally turning onto the El Camino Real onramp, prompting intervention from the California Highway Patrol. This event highlights the ongoing tension between military operations and civilian infrastructure.

San Clemente City Councilmember Mark Enmeier expressed frustration over the lack of communication regarding the closure, stating, “There was no coordination with any local officials on this whatsoever… I was not informed of it.” He further criticized the exercise as a “show of force” potentially timed to coincide with widespread protests and a source of financial strain due to the disruption of a major transportation artery. The closure forced drivers to take lengthy detours, adding as much as an hour and a half to commutes between Orange County and San Diego, as reported by the Los Angeles Times.

While some businesses near the freeway experienced slower traffic, others were unaffected. SC Cafe owner Joey Abi-Loutfi noted the situation was “the give and take of owning a restaurant right next to a freeway ramp,” but also expressed skepticism about the use of funds for the exercise. Governor Gavin Newsom criticized the White House for failing to share safety information related to the Marine Corps 250th anniversary celebration, while administration officials maintained the event was safe and a freeway closure was unnecessary. You can find more information about Camp Pendleton’s mission here.

Officials stated that traffic conditions around San Clemente had eased by mid-afternoon, though inland freeways saw increased congestion. The situation remains fluid, and further communication between state and federal authorities is expected.