Bridge Crossings No. 06 By Dann H. Hall Why Steel Box Girders? Circle Centre Cockrell Butterfly Center Los Angeles Convention Center 1997 Engineering Awards of Excellence National Winner Structural steel design at its ultimate. The designers put tremendous thought into the connections and joints to achieve the desired architectural requirements. Niles West High School Field House Off The Beam PUENTE Learning Center Rock & Roll Hall of Fame News Briefs Steel Quiz Steel Interchange