It was bought out by Charleston, SC interests in 1863 and became known as the Confederate Rolling Mill when it produced the former products as well as cannon.
On the night of September 1st, 1864, the mill was destroyed in a series of explosions of ammunition trains parked nearby, set off by cavalry under Confederate General J.B. Hood in a successful effort to deny the war materials' capture by the advancing Union Army under General Sherman.
Part of what is now Boulevard was named Rolling Mill Street, when the street was extended north of the railroad in the late 1860s, thus commemorating the already destroyed mill. The name was changed to Boulevard around 1880.