The Patterson Viaduct was one of three (along with the Carrollton Viaduct and Oliver Viaduct) constructed for the first phase of the railroad, which ran  between Baltimore and Ellicott's Mills (today's Ellicott City). Similar in construction to the Carrollton Viaduct, the Patterson Viaduct was named for B&O director and well known civic leader and merchant William Patterson, who also donated land for Patterson Park in east Baltimore.
The Patterson Viaduct was one of three (along with the Carrollton Viaduct and Oliver Viaduct) constructed for the initial phase of the railroad, which ran between Baltimore and Ellicott's Mills (today's Ellicott City). Similar in construction to the Carrollton Viaduct, the Patterson Viaduct was named after B&O director and well-known civic leader and merchant William Patterson, who also donated land for Patterson Park in east Baltimore.