SIOUX FALLS, S.D. (AP) — South Dakota's largest city is putting out the "Help Wanted" sign.

Sioux Falls expects about 70 workers to retire this year — double the norm. Human Resources Director Bill O'Toole says it's "unprecedented territory" for the city.

Retirees used to be covered by the city's health insurance program. Those retiring this year get a stipend to buy their own. The Argus Leader reports ( ) that many employees held off on retiring last year so they would be eligible for the stipend.

O'Toole says it's tough to replace experienced employees. But he says new workers bring fresh ideas.