A 19-year-old faces up to seven years in prison for a hit-and-run crash that injured three people in 2011.

Richard J. Booze Jr., of Guilford Avenue, pleaded guilty before Supreme Court Justice Russell P. Buscaglia to three counts of second-degree assault, Erie County District Attorney Frank A. Sedita III said Monday.

Booze will be sentenced before Buscaglia at 11 a.m. on Aug. 7.

But he is looking at more time in state prison.

He also faces a separate charge of first-degree robbery for an armed robbery and shooting at Dee’s Toe Bar on Aug. 12. If convicted of that charge, Sedita said, Boozes faces an additional 25 years behind bars. The trial in that case is scheduled for July 25.

Booze admitted that in the early-morning hours of Christmas Eve 2011 he intentionally struck and injured three pedestrians with his car while in the Augspurger parking ramp between Franklin and Pearl streets.

Booze and a female passenger initially sped by the three people in the downtown ramp, but finding the exit closed, spun his car around and struck two women pedestrians. The man they were with was struck when he tried to prevent Booze’s vehicle from leaving the scene.

The three were treated for their injuries and released from the hospital the same day.

Officer Martin Forero, of the Buffalo Police Department Accident Investigation Unit, was credited with securing surveillance video that identified Booze as the driver of the vehicle, Sedita said.

The case was prosecuted by Assistant District Attorneys Christopher M. McCarthy and Bethany A. Solek.