PITTSBURGH, Pennsylvania (KDKA) — U.S. Steel celebrated the 150th anniversary of the Edgar Thomson steel plant in Braddock with an event Saturday that brought steelworkers, their families, and ...

U.S. Steel Corp. celebrated the 150th anniversary of the Mon Valley’s Edgar Thomson plant. The celebration on Saturday was combined with Mon Valley Works Family Safety Day. It brought workers and ...

U.S. Steel’s notoriously outdated Edgar Thomson Works handles the molten substance left behind by smelting iron ore the same way it did 150 years ago: by dumping it into slag pits. They’re as low-tech ...

BRADDOCK, Pennsylvania — The fate of the Edgar Thomson Works, a massive steel plant that has hugged the same spot along the Monongahela River since 1875, became even more uncertain Friday morning when ...

U.S. Steel says it is investing $100 million dollars at the Edgar Thomson Works in Braddock. The steelmaker says it has applied for an “air construction permit” to start building a new slag recycler.