Bridge / Structural Iron Worker


  • Unload, erect, and connect fabricated iron beams to form the project skeleton.
  • Work primarily on industrial, commercial and large residential buildings.
  • Build towers, bridges, stadiums, and prefabricated metal buildings
  • Erect and install pre-cast beams, columns and panels.


  • Fabricate and place steel bars (rebar) in concrete forms to reinforce structures.
  • Place rebar on appropriate supports and tie them together with tie wire.
  • Install post-tensioning tendons (cables) to place in concrete forms along reinforcing steel.
  • Stress the tendons using hydraulic jacks and pumps after the concrete is poured and hardened


  • Install metal windows into buildings a building’s masonry or wooden openings.
  • Erect curtain wall and window wall systems that cover the steel or reinforced concrete structure of a building.
  • Install and erect metal stairways, catwalks, gratings, doors, railings, fencing, elevator fronts and building entrances.

Rigging and Machinery Moving

  • Load, unload, move and set machinery, structural steel and curtain walls.
  • Operate power hoists, cranes, derricks, forklifts and aerial lifts.
  • Have knowledge of fiber line, wire rope, hoisting equipment and proper hand signals.

Welding and Burning

Welding and burning equipment are considered tools of the trade and performed by structural, reinforcing, ornamental and rigging ironworkers to secure their work to the structure. Ironworkers can be tested to be designated a certified welder.

View Union Information

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

5575 Tejon Street, Denver, CO 80221

Phone 303-623-5386

Fax 303-296-0328