BELCHERTOWN — A Granby man pleaded guilty Monday in Eastern Hampshire District Court to motor vehicle homicide and reckless assault charges stemming from a motor vehicle crash that killed his longtime partner and the mother of his child last July, the Northwestern district attorney’s office said.

Presiding Judge Bruce Melikian sentenced Cory Menard to serve 2½ years in the House of Correction followed by two years of probation in the July 1 death of Katelyn Gress. He will also lose his driver’s license for 15 years, according to the DA’s office.

Probation conditions include that he refrain from alcohol use; comply with a remote alcohol monitoring device; and provide a DNA sample. The commonwealth dismissed a manslaughter charge as part of the plea agreement.

Menard, 30, pleaded guilty to charges of motor vehicle homicide while operating negligently and under the influence of alcohol, and reckless assault and battery with a dangerous weapon. The commonwealth dismissed two charges of manslaughter as part of the plea agreement.

Menard admitted in court that he and Gress, 28, of Granby, had both been drinking at a bar that night in South Hadley. After leaving the bar together shortly after 1 a.m., Menard lost control of his Jeep Grand Cherokee on Pleasant Street in Granby. The Jeep struck a mailbox and two telephone poles before rolling over several times, hitting an oncoming Lexus SUV and injuring the driver.

Gress, who was in the passenger seat, was taken to Baystate Medical Center where she died of her injuries. Menard suffered injuries that were not life-threatening.

Gress had been studying to be a nurse at Springfield Technical Community College and was a year away from graduating. She is survived by her mother, Joanne Olden, her father, Kenneth Gress, her sister Julia Burns, and her daughter, Aubrey, who was 8 at the time.

The driver of the Lexus, identified as a 74-year-old Springfield man, was taken to Holyoke Medical Center for treatment of injuries that were not life-threatening. The reckless assault and battery charge was brought in connection with the other driver’s injuries.

Menard’s sentence was jointly recommended by Northwestern Assistant District Attorney Andrew Covington and defense attorney Joseph Bernard of Springfield.

“This was a tragic and preventable crash,” Covington said.

He said Gress’ family showed tremendous compassion in requesting leniency, mainly because Menard and Gress shared a young child together.

Covington also thanked the Granby Police Department, the State Police Detective Unit attached to the Northwestern District Attorney’s Office, and the State Police Collision Analysis and Reconstruction Section for their efforts in the investigation.