On September 16, 2023, at about 1:25 AM, a critical motor vehicle collision, involving two vehicles, occurred on the Hickam overpass in the Aiea area.

It was reported to the Honolulu Police Department, Traffic Division, Vehicular Homicide Section, that a 19-year-old adult female motorist was traveling southbound on the Hickam overpass in the wrong direction, when she collided into a 28-year-old adult male motorist traveling northbound.

The 28-year-old adult male motorist lost control and struck the concrete wall before going airborne over the wall and coming to rest on its roof on the H1 West Freeway / Arizona Memorial off-ramp below the overpass.

As a result of the collision, the 28-year-old adult male motorist was transported via Emergency Medical Services to an area hospital in critical condition.

The 19-year-old adult female motorist was transported to an area hospital in serious condition. The female motorist was subsequently placed under arrest for Operating a Vehicle Under the Influence of an Intoxicant.

At this time, alcohol appears to be a factor in this collision. It is unknown if drugs or speed is a contributing factor.

The investigation is ongoing.