A former staff member at the Boys & Girls Club of Woburn has been indicted on charges of sexually assaulting a girl over a three-year period, beginning in 2000 when she was 12, authorities said Friday. Christopher Elwell, 33, of Woburn met the girl at the club and allegedly abused her through fall 2003, the Middlesex district attorney’s office said. Elwell is facing several charges, including three counts of rape of a child. An arraignment date has not been set.

Travis Andersen can be reached at travis.andersen@globe.com. Follow him on Twitter @TAGlobe.