I-15 South Mainline AT Sahara Ave

The southbound I-15 mainline through the Sahara Avenue interchange area captures crashes in one of the most complex traffic environments on the Las Vegas freeway system. Multiple ramp movements, the Sahara overpass structure, and the convergence of traffic from north Strip properties all contribute to the lane-change and speed-differential conflicts that generate crashes here. Locals who drive I-15 South daily develop a mental map of where the right lane transitions to an exit-only configuration — newcomers often don’t.

Zero fatalities across all three years. The crash count followed an unusual rise-then-fall pattern: 33 in 2022, up to 39 in 2023, then a sharp drop to 18 in 2024 — the lowest of any year at this location. The 2024 improvement suggests either a physical change to the corridor or changed traffic patterns. Zero alcohol-involved crashes across all three years is unusual and likely reflects the freeway mainline environment where impairment tends to show up as speed incidents rather than intersection conflicts.