12/06/2025
The Lyman Viaduct in Colchester, Connecticut, around the 1870s and 2025. The viaduct was constructed in 1873, and it was a wrought iron railroad bridge that spanned 1,112 feet across a ravine in western Colchester. At the base of the ravine, 137 feet below the bridge, is Dickinson Creek, a small tributary of the Salmon River.
The viaduct was part of the Boston and New York Air-Line Railroad, which was built in the 1870s and was intended to be a more direct route between New Haven and Boston. The line was later acquired by the New York, New Haven & Hartford Railroad, and in the early 20th century it was upgraded to allow for heavier trains. Rather than rebuilding the Lyman Viaduct, the railroad buried it with sand and cinder in 1912-1913. The old iron viaduct was left intact beneath the artificial embankment, and it remained in use until this portion of the rail line was abandoned in 1965.
The railroad right-of-way has since been converted into a rail trail, as shown in the bottom photo. The original 1873 iron viaduct is still here, buried beneath the sand and rocks, and there are a few areas where parts of the bridge are exposed above the surface. It is a rare surviving example of an iron railroad bridge from this period, and it was added to the National Register of Historic Places in 1986. The best way to visit the viaduct is to park in the parking lot on Bull Hill Road and then walk about a quarter mile west along the trail.
Historic image attributed to photographer Albert M. McKenney. Courtesy of the J. Paul Getty Museum.