WEDNESDAY, JUNE 3, 2026 NAMPA, IDAHO
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I-84 Crash Near Karcher Road in Nampa Shuts Down Westbound Lanes

A Sunday morning collision on Interstate 84 in Nampa temporarily closed westbound traffic lanes for over an hour as emergency crews responded to an injury crash involving a passenger vehicle and a commercial truck.

The incident occurred at approximately 5:48 a.m. at the westbound off-ramp near the Karcher Road exit, according to Idaho State Police.

Details of the Collision

Investigators report that a Mazda 5 traveling westbound on I-84 struck a Volvo truck-tractor pulling a Great Dane trailer. The circumstances leading to the collision remain under investigation by Idaho State Police.

The driver of the Mazda, identified as a 23-year-old man from Ontario, sustained injuries in the crash and was transported by ground ambulance to a local hospital. The extent of his injuries has not been disclosed.

The truck driver, a 54-year-old man from Beaverton, Oregon, was not injured and did not require medical transport. Both drivers were wearing seatbelts at the time of the crash, according to ISP.

Traffic Disruption and Emergency Response

Westbound lanes on I-84 were shut down for approximately 90 minutes while emergency personnel worked to clear the crash scene and investigate the incident.

Multiple agencies assisted in the response, including the Nampa Police Department, Nampa Fire Department, and Canyon County Paramedics. The coordinated effort helped reopen the roadway before the morning commute reached its peak.

What Comes Next

Idaho State Police continue to investigate the crash. No citations or charges have been announced at this time. Authorities have not released additional information about potential factors contributing to the collision.

The early morning timing of the crash meant minimal disruption to commuter traffic, though the incident serves as a reminder of the importance of safe driving practices on Canyon County highways.

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