A Rockport man who is a registered sex offender for life has been charged with gross sexual assault on a teenage girl.

Arthur “Ron” Dodge, 54, was arrested Thursday by Maine State Police on charges of gross sexual assault and unlawful sexual contact for an incident that allegedly happened last year at Dodge’s home, police said.

He was arrested at his house at 66 Chickawaukie Pond Road and taken to Knox County Jail and is being held on $25,000 bail.

Dodge was convicted in 1990 of unlawful sexual contact and is required to be on the sex offender registry for the rest of his life, police said.