Durham teenager will be charged as an adult under Measure 11.

Tigard Police have identified the 17-year-old boy who allegedly stabbed a man in the face with a screwdriver last week.

Police say they arrested Javier Chavelas-Mellin, of Durham, last Monday after he attacked a man as he was walking near Commercial Street and Main Street.

The 23-year-old victim, an employee at Astro gas station, near Pacific Highway and Walnut Street was likely attacked because of his ties to a previous altercation that involved Chavelas-Mellin, according to Tigard Police spokesman Jim Wolf.

Police found the screwdriver at the attack site, Wolf said.

A passing motorist stopped and helped the victim, driving him to the gas station, where an employee called police.

Chavelas-Mellin is being tried as an adult under Measure 11. He was arraigned on Tuesday to one count of first-degree assault in Washington County Circuit Court.

If convicted, Chavelas-Mellin faces up to seven years, six months in prison.

He is being held on $25,000 bail and is lodged in the Washington County Jail.