A review of recent traffic data shows no confirmed accidents reported on California State Route 139 (SR‑139) in Northern California. As of August 17, 2026, state and regional traffic monitoring sources indicate clear road conditions with no active incidents.
The core incident
No specific traffic collision or accident labeled “accident 139” on SR‑139 was identified in recent official or public reports. As of August 17, road condition systems show SR‑139 is free of traffic restrictions, with no active accidents listed by the California Department of Transportation or California Highway Patrol.
Background and context
SR‑139 is a rural state highway stretching from Susanville to the Oregon state line, passing through Lassen, Modoc, and Siskiyou counties. It serves as a scenic corridor through Modoc National Forest and connects to major routes between Reno, Nevada, and Klamath Falls, Oregon.
Traffic data and current conditions
Caltrans’ real-time highway monitoring and CHP incident systems report no traffic incidents or restrictions on SR‑139 as of mid‑August 2026. CommuteDash, a third-party traffic summary service, also indicates no reported accidents on this route.
Investigation or confirmation status
Because no incidents have been reported along SR‑139 recently, there is nothing under investigation or awaiting confirmation. Should a collision or other event occur, such incidents are typically logged by CHP communication centers and reflected in the traffic monitoring services soon thereafter.
Guidance for travelers
While SR‑139 currently shows clear conditions, travelers are encouraged to monitor official Caltrans QuickMap or 511 real‑time services, as well as CHP Traffic Incident information pages, for any future updates or alerts.
At this time, there is no reported accident involving SR‑139. Stay alert to official updates before traveling.