Historic Bridges of the U.S.

Bypassed Historic Bridge (Grafton County, New Hampshire)
Built 1827; rehabilitated 1973
Covered bridge over Ammonoosuc River on Bypassed Historic in Bath
Closed to all traffic

McClay's West Twin Bridge (Franklin County, Pennsylvania)
Built 1827 by Silas Harry
Stone arch bridge over Conodoguinet Creek on PA 4018
Open to traffic

McClays East Twin Bridge (Franklin County, Pennsylvania)
Built 1827 by Silas Harry
Stone arch bridge over a branch of Conodoguinet Creek on McClays Mill Road (PA 4018)
Open to traffic

Merchant Street Bridge (Beaver County, Pennsylvania)
Built 1827; rehabilitated 2004
Concrete arch bridge over Big Sewickley Creek on Merchant Street in Ambridge
Open to traffic

Swamp Pike Bridge (Montgomery County, Pennsylvania)
Built 1827; rehabilitated 1929
Concrete arch bridge over Swamp Creek on Swamp Pike in Philadelphia
Open to traffic