Dianna Montague made history when she became the first African-American woman to join the Philadelphia’s Iron Workers Union Local 405. As the chairman and CEO of Iron Lady Enterprises Inc., Montague holds the distinction of being one of the only female ironworkers in Philadelphia. She is a certified master welder, rigger and rod setter. Montague is now working on one of the nation’s largest infrastructure projects, the $3.9 billion New NY Bridge. It will replace the Tappan Zee Bridge in Hudson Valley, N.Y., and is expected to be completed in 2018. Her company is responsible for land-based rebar fabrication and...