Upper Charles Rail-Trail

Upper Charles Rail-Trail - Arch Street Overpass (Middlesex County, Massachusetts)
Stone arch bridge over Arch Street on Upper Charles Rail Trail (former CSX/Conrail/Penn Central/NYC/Boston & Albany)
Open to pedestrians only

Upper Charles Rail-Trail - Bogastow Brook Viaduct (Middlesex County, Massachusetts)
Built ca. 1847
Stone arch bridge over Bogastow Brook on Boston & Worcester Railroad, Milford Branch
Open to pedestrians only

Upper Charles Rail-Trail - Phipps Tunnel (Middlesex County, Massachusetts)
Built 1848
Tunnel under Highland Street on Upper Charles Rail-Trail
Open to pedestrians only