Bethlehem Steel Lehigh Plant Mill #2 Annex, also known as Merchant Mill No. 2 and the Johnson Machinery Building, is part of the historic steel mill located in Bethlehem in Northampton County and the Lehigh Valley region of eastern Pennsylvania. It is a large, square, two-story brick industrial building. History The Mill #2 Annex was built between 1940 and 1942, by the Bethlehem Steel Corporation. It was originally designed and built as a surface preparation and finishing mill for the Alloy and Tool Steel Division at Bethlehem Steel's Lehigh Plant in Bethlehem. The Mill No. 2 Annex was added to the National Register of Historic Places in 2004. The building has since been renovated and currently contains condominiums, two commercial properties, and a parking garage. See also References Bethlehem Steel Bethlehem, Pennsylvania Buildings and structures in Northampton County, Pennsylvania Ironworks and steel mills in Pennsylvania Industrial buildings completed in 1942 Industrial buildings and structures on the National Register of Historic Places in Pennsylvania National Register of Historic Places in Northampton County, Pennsylvania 1942 establishments in Pennsylvania History of Northampton County, Pennsylvania