State and local officials turned out in Boston Monday for a groundbreaking ceremony of Liberty Mutual’s expanded 22-story headquarters. According to a press release from the governor’s office, the project will create 600 new full-time jobs and yield another 500 construction jobs over the duration of the project.

“This is what it’s all about – putting people to work,” said Gov. Deval Patrick. “Liberty Mutual’s expansion is a prime example of the critical collaboration between the Commonwealth, the City and private industry that leads to new opportunities today and a stronger Commonwealth tomorrow.”

It’s estimated the project will generate $64.4 million in new tax revenues for the state as a result of the employment it creates.

Patrick joined Boston Mayor Thomas M. Menino and Liberty Mutual Group Chairman and CEO Edmund F. Kelly at Monday’s ceremony.

“Boston is where our company started nearly 100 years ago, and the City continues today as headquarters for our worldwide operations,” Kelly said. “The support of Mayor Menino, Governor Patrick and their staffs has made it possible for us to invest in Liberty Mutual’s future as well as in the economic future of Boston, Massachusetts and the region.”