Office Location: 229 Main StreetColumbus Junction, Iowa 52738 Phone Numbers: Phone (319) 728-2226Fax (319) 728-7733 Lobby Hours: Restricted Lobby Access. Please call for an appointment during the hours listed below. Monday - Thursday 9:00 a.m. - 4:00 p.m.Friday 9:00 a.m. - 5:00 p.m.Saturday: By appointment only Drive Up Hours: Monday - Friday 8:00 a.m. - 5:00 p.m.Saturday 8:00 a.m. - noon