LOUISVILLE — The Kentucky Air National Guard has broken ground on a new $8.9 million facility.

The 28,000-square-foot Response Forces Facility will house the guard’s contingency response group, security forces squadron, base honor guard and a medical detachment, according to a statement from the guard. Construction began Friday and is expected to last 15 months.

“This groundbreaking represents an incredible investment in Kentucky’s Air National Guard, its members and the essential protection they provide, said Col David Mounkes, commander, 123rd Airlift Wing.

“The expanded Response Forces Facility will allow us to conduct integral training and provide expanded workspaces to the men and women who work at the wing.”

It is the largest base infrastructure project in more than two decades.