Historic Bridges of the U.S.

Beaver Brook East Stream Bridge (Middlesex County, Massachusetts)
Built 1850; rehabilitated 1921
Stone arch bridge over Beaver Brook East Stream on MA 113 (Pleasant Street) in Dracut
Open to traffic

Beaver Brook West Stream Bridge (Middlesex County, Massachusetts)
Built 1850; rehabilitated 1921
Stone arch bridge over Beaver Brook West Stream on MA 113 (Pleasant Street) in Dracut
Open to traffic

Merrimack River Bridge (Essex County, Massachusetts)
Built 1914; rehabilitated 1951
Bascule bridge over Merrimack River on MA 97/MA 113 in Groveland
Open to traffic

Merrimack River Bridge (Middlesex County, Massachusetts)
Built 1930; rehabilitated 1975
Steel through arch bridge over Merrimack River on MA 113/MA 3A in Tyngsborough
Open to traffic