Andover, Massachusetts

MBTA - Lower Shawsheen River Bridge (Essex County, Massachusetts)
Built 1847, reconstructed with steel superstructure 2013
Stone arch bridge over Shawsheen River on MBTA Haverhill Line
Open to traffic

Vale Reservation Causeway (Essex County, Massachusetts)
Timber stringer bridge over Wetlands on Vale Reservation Trail
Open to pedestrians

Vale Reservation Footbridge (Essex County, Massachusetts)
Howe pony truss bridge over Shawsheen River on Vale Reservation Trail
Open to pedestrians