Bypassed Historic Bridge (Hillsborough County, New Hampshire)
Built 1916
Concrete arch bridge over Souhegan River on Bypassed Historic in Wilton
Closed to all traffic

Elm Street Bridge (Hillsborough County, New Hampshire)
Built 1917; rehabilitated 1952
Stone arch bridge over Souhegan River on Elm Street in Milford
Open to traffic

Stony Brook Bridge (Hillsborough County, New Hampshire)
Built 1905
Stone arch bridge over Stony Brook on NH 31 in Wilton
Open to traffic