The City of Rochester has selected Knutson Construction as the general contractor of its $85-million Mayo Civic Center expansion.

The company bid the project for $71.6 million and was selected based on its experience and past performance, according to a news release.

The expansion is scheduled to be complete in 2017 and will double the size of the center's meeting and event space at Mayo Civic Center, including a new 38,800-square-foot ballroom.