Puerto Rico

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Arenas Bridge (Cayey, Puerto Rico)
Built 1893; bypassed by new bridge in 2004
Eiffel through truss bridge over Rio de la Plata on PR 735
Looks to be open to traffic via cars approaching and heading away from bridge on each side.

Blanco Bridge (Utuado, Puerto Rico)
Built 1924
Closed-spandrel arch bridge over Rio Pellejas on PR 123
Open to traffic

Cambalache Bridge (Arecibo, Puerto Rico)
Built 1893
Whipple through truss bridge over Rio Grande de Arecibo
Abandoned

Cayey Bridge (Guayama, Puerto Rico)
Built 1891
Lattice pony truss bridge over Rio Guamani on PR 15
Open to traffic

Del Treinta Bridge (Maricao, Puerto Rico)
Built 1924
Steel stringer bridge over Rio Prieto on PR 128
Open to traffic

General Mendez Vigo Bridge (Coamo, Puerto Rico)
Built 1862; rehabilitated 1898
Brick arch bridge over Rio Las Minas on PR 14
Open to traffic

General Norzagaray Bridge (San Juan, Puerto Rico)
Built 1855; rehabilitated 1930
Brick arch bridge over Frailes Creek on PR 873
Open to traffic

La Liendre Bridge (Cayey, Puerto Rico)
Built 1877; bypassed by new bridge in 1998
Lattice pony truss bridge over Quebrada Beatriz on PR 735
Closed to traffic (?)

Las Cabanas Bridge (Adjuntas, Puerto Rico)
Built 1919
Steel stringer bridge over Vacas River on PR 135
Open to traffic

Manati Bridge (Ciales, Puerto Rico)
Built 1905
Through truss bridge over Rio Manati on PR 6685
Open to traffic

Marques de la Serna Bridge (Bayamon, Puerto Rico)
Built 1869 (?)
Iron arch bridge over Rio de Bayamon on PR 890
Open to pedestrians

Mavilla Bridge (Corozal, Puerto Rico)
Built 1903
Arch bridge over Rio Mavilla on PR 159
Open to traffic

Padre Inigo Bridge (Coamo, Puerto Rico)
Built 1853; bypassed by new bridge in 1983
Brick arch bridge over Coamo River on PR 14
Open to pedestrians

Plata Bridge (Bayamon, Puerto Rico)
Built 1908; bypassed 1982
Parker through truss bridge over La Plata River on PR 167
Still standing next to replacement bridge

Rio Blanco Bridge (Naguabo, Puerto Rico)
Built 1918
Steel stringer bridge over Rio Blanco on PR 3
Open to traffic

Rio Canas Bridge (Caguas, Puerto Rico)
Built 1856
Stone arch bridge over Rio Canas on PR 798
Open to traffic

Rio Culebrinas Bridge (Aguadilla, Puerto Rico)
Built 1928
Pony truss bridge over Rio Culebrinas on PR 418
Open to traffic

Rio Cuyon Bridge (Coamo, Puerto Rico)
Built 1877
Girder bridge over Rio Cuyon on PR 14
Open to traffic

Rio Descalabrado Bridge (Coamo, Puerto Rico)
Built 1878
Girder bridge over Rio Descalabrado on PR 14
Open to traffic

Rio Guamani Bridge (Guayama, Puerto Rico)
Built 1936
Warren pony truss bridge over Rio Guamani on Pr 3
Open to traffic

Rio Guayo Bridge (Adjuntas, Puerto Rico)
Built 1924
Arch bridge over Rio Guayo on PR 135
Open to traffic

Rio Hondo Bridge (Comerio, Puerto Rico)
Built 1908
Eiffel pony truss bridge over Rio Hondo on PR 156
Unknown status -- appears to be lost on satellite view

Rio Maton Bridge (Cayey, Puerto Rico)
Built 1886
Deck girder bridge over Rio Maton on PR 14
Open to traffic

Rio Piedras Bridge (San Juan, Puerto Rico)
Built 1853
Brick arch bridge over Piedras River on PR 8839
Open to pedestrians

Rio Riachuelo Bridge (Corozal, Puerto Rico)
Built 1925
Arch bridge over Rio Riachuelo on PR 568
Open to traffic

Rio Toro Negro Bridge (Ciales, Puerto Rico)
Built 1924
Arch bridge over Rio Toro Negro on PR 149
Open to traffic

Silva Bridge (Hormigueros, Puerto Rico)
Built 1897; bypassed by new bridge in 1989
Pratt pony truss bridge over Rio Guanajibo on PR 114
Closed to all traffic

Torrens Bridge (Hormigueros, Puerto Rico)
Built 1878 (?); bypassed by new bridge in 2003
Lattice bridge over Rio Rosario on PR 319
Replaced by new bridge

Villaran Bridge (Canovanas, Puerto Rico)
Built 1892; bypassed by new bridge in 1989
Pony truss bridge over Rio Canovanas on PR 9959
Open to pedestrians (?)