The Stony Brook Railroad, chartered in 1845, was a railroad company in Massachusetts, United States. The company constructed a rail line between the Nashua and Lowell Railroad's main line at the village of North Chelmsford and the town of Ayer, Massachusetts where it connected to the Fitchburg Railroad. Rather than running its own trains, upon opening in 1848 operations were contracted to the Nashua and Lowell; this arrangement continued until the Nashua and Lowell was leased by the Boston and Lowell Railroad in 1880. The Boston and Maine Railroad (B&M) took over operation of the Stony Brook in 1887 when it leased the Boston and Lowell Railroad. In 1983 the B&M was purchased by Guilford Rail System, which renamed itself Pan Am Railways (PAR) in 2006. Passenger service last ran on the line in 1961, but it saw significant freight service under Pan Am Railways. While it never owned rolling stock or ran trains, the Stony Brook Railroad Corporation existed until 2022 as a nearly wholly owned subsidiary of the Boston and Maine, itself a PAR subsidiary. That year, it was merged into CSX Transportation as part of CSX's purchase of Pan Am Railways.
A signal bridge on the former Stony Brook Railroad in Graniteville
An engine house and freight house in Ayer, Massachusetts, on the Stony Brook Railroad, circa 1903, along with a locomotive
A Pan Am Railways train on the Stony Brook Railroad in 2007
Nashua and Lowell Railroad
The Nashua and Lowell Railroad (N&L) was a 14-mile-long (23 km) railroad built to connect Nashua, New Hampshire with the city of Lowell, Massachusetts. Chartered in June 1835, construction began in 1837 and the first train ran the next year. The Nashua and Lowell was the first railroad built in the state of New Hampshire.
A stock certificate of the Nashua and Lowell Railroad.
The train station in Nashua, seen in the early 1900s after the Boston and Maine took control
A poster advertising B&M train service showing Nasua Union Station in 1963. Four years later, passenger service was eliminated entirely.