The Edgar Thomson Steel Works, located in Braddock and North Braddock, Pennsylvania, has been a prominent steel mill in the Pittsburgh area since 1875. Owned by U.S. Steel and known as Mon Valley Works Edgar Thomson Plant, it was built by Andrew Carnegie and named after J. Edgar Thomson, producing steel using the innovative Bessemer process.
Throughout its history, the plant has played a significant role in the steel industry, with notable achievements such as producing 32,228 tons of steel rail within its first year of operation. Despite facing challenges like strikes and industry downturns, the plant has persevered and continues to operate today, showcasing its resilience in the face of changing economic landscapes.
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