Crestwood Police Chief Frank Arnoldy has been named interim city administrator.

The Board of Aldermen voted unanimously in closed session last week to approve Mayor Gregg Roby’s recommendation to appoint Arnoldy interim city administrator.

City Administrator Mark Sime recently announced he was resigning his post, effective Friday, Oct. 23.

The Board of Aldermen also voted unanimously during the Oct. 13 closed session to approve Roby’s recommendation that Arnoldy be paid an additional $1,000 per month during his tenure as interim city administrator.