California's Deadliest Highway Was Built Wrong

Interstate 15 is the only way out of Los Angeles toward Las Vegas — and it's the deadliest highway in America. Over a recent five-year span, someone was injured or killed on this stretch roughly every four days. The terrifying part? Engineers say the problem can't be fixed. This is the story of a road that was built for 1960s traffic and is now crushed under 21st-century reality: 80,000-pound trucks losing their brakes on the brake-melting 6% descent of the Cajon Pass, 50+ mph desert crosswinds flipping rigs onto their sides, 110-degree heat blowing out tires and the San Andreas Fault sitting directly beneath the asphalt, holding its highest stress levels in over a thousand years. We break down exactly why I-15 is dangerous by design, why no amount of money can flatten the mountains or move the fault line, and why it's only going to get worse as traffic doubles in the coming decades. Subscribe to Special Roads for more stories about America's most dangerous, extreme, and jaw-dropping infrastructure. Have you ever driven the Cajon Pass to Vegas? Tell us about it in the comments. #interstate15 #cajonpass #dangerousroads #california #lasvegas #sanandreasfault #mojavedesert #truckdriver #dangeroushighways #specialroads #roadtrip #infrastructure