Iron Workers

International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers

Members of the Iron Workers assemble and erect steel framework and other metal parts in buildings and on bridges, dams, skyscrapers, factories and other steel structures. They raise, place and join steel griders and columns to form structural frameworks, including the welding for metal decking.


Business Manager – Mark Calkins

501 W. 4th Ave., Denver, CO 80223

PHONE: 303-623-5386

FAX: 303-825-0645

Pueblo Area

Organizer/Business Agent – Joe Mulready

706 Elmhurst Pl., Pueblo, CO 81004

PHONE: 719-557-2545

FAX: 719-543-7934

Kansas Office

Organizer/Business Agent – Mark Roby

1330 E. 1st St., N, #107, Wichita, KS 67214

PHONE: 316-264-2424

FAX: 316-264-3987


1750 New York Avenue, NW

Washington, DC 20006