The Horizon Health Network said Monday that its surgery program at Hotel-Dieu of St. Joseph hospital will stop operating on April 30.
Health authority CEO John McGarry says in a news release that the closure is due to a need to reduce costs.
People who use the hospital's operating room have been advised to travel to the Upper River Valley Hospital in Waterville.
The health authority says it is continuing to plan with the provincial Health Department for the eventual replacement of the hospital, which sustained structural damage during floods in March 2012.
The Canadian Union of Public Employees is calling the closure a blow to rural New Brunswick.