The first thing you should know about ironworkers is that they don’t make things out of iron, like horseshoes. They’re builders. Ironworkers from Local 377 built the Golden Gate Bridge, the Transamerica Tower, and the Bank of America skyscraper right here in San Francisco. Today, the union’s biggest and most eye-catching project is the new Bay Bridge’s signature suspension span – the huge white tower and cables that reach over five hundred feet into the sky. The second thing you should know is that they’re pretty ballsy.