Historic Bridges of the U.S.

North Nashua River Bridge (Worcester County, Massachusetts)
Built 1909; rehabilitated 1997
Deck truss bridge over North Nashua River on Northbound MA 31 in Fitchburg
Open to traffic

Whitmans River Bridge (Worcester County, Massachusetts)
Built 1929
Stone arch bridge over Whitmans River on MA 31 (Princeton Road) in Fitchburg
Open to traffic

Willard Brook Bridge (Middlesex County, Massachusetts)
Built 1908; rehabilitated 1932
Concrete arch bridge over Willard Brook on MA 31 (State Road) in Ashby
Open to traffic