List of bridges on the National Register of Historic Places in Idaho

Last updated May 15, 2024

This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Idaho.^[1]

Name	Built	Listed	Location	County	Type
Boise River and Canal Bridge	1922	2007-02-07	Caldwell 43°41′20″N116°41′10″W / 43.68889°N 116.68611°W / 43.68889; -116.68611 (Boise River and Canal Bridge)	Canyon	Warren camelback through truss
Bullion Tunnel	1910	1984-09-20	Avery 47°24′4″N115°42′4″W / 47.40111°N 115.70111°W / 47.40111; -115.70111 (Bullion Tunnel)	Shoshone
Capitol Boulevard Memorial Bridge	1931	1990-11-05	Boise 43°36′32″N116°12′26″W / 43.60889°N 116.20722°W / 43.60889; -116.20722 (Capitol Boulevard Memorial Bridge)	Ada
Cold Springs Pegram Truss Railroad Bridge	1894, 1917	1997-07-25	Ketchum 43°39′14″N114°20′58″W / 43.65389°N 114.34944°W / 43.65389; -114.34944	Blaine	Pegram through truss
Conant Creek Pegram Truss Railroad Bridge	1894, 1911, 1916	1997-07-25	Grainville 44°0′52″N111°21′51″W / 44.01444°N 111.36417°W / 44.01444; -111.36417	Fremont	Pegram through truss
Gimlet Pegram Truss Railroad Bridge	1894, 1914	1997-07-25	Ketchum 43°35′53″N114°20′43″W / 43.59806°N 114.34528°W / 43.59806; -114.34528	Blaine	Pegram through truss
Grace Pegram Truss Railroad Bridge	1894, 1913	1997-07-25	Grace 42°35′6″N111°44′5″W / 42.58500°N 111.73472°W / 42.58500; -111.73472	Caribou	Pegram through truss
Ninth Street Bridge	1911	2001-09-14	Boise 43°36′34″N116°12′29″W / 43.60944°N 116.20806°W / 43.60944; -116.20806 (Ninth Street Bridge)	Ada	Pratt through truss
North Fork Payette River Bridge	1933	1999-04-02	Smiths Ferry 44°19′32″N116°3′30″W / 44.32556°N 116.05833°W / 44.32556; -116.05833 (North Fork Payette River Bridge)	Valley	Reinforced concrete arch
Owsley Bridge	1921	1998-09-18	Hagerman 42°45′52″N114°53′21″W / 42.76444°N 114.88917°W / 42.76444; -114.88917 (Owsley Bridge)	Gooding	Cantilevered Warren truss
Ririe A Pegram Truss Railroad Bridge	1894, 1914	1997-07-25	Ririe 43°39′59″N111°44′16″W / 43.66639°N 111.73778°W / 43.66639; -111.73778	Jefferson	Pegram through truss
Ririe B Pegram Truss Railroad Bridge	1894, 1914	1997-07-25	Ririe 43°39′37″N111°44′25″W / 43.66028°N 111.74028°W / 43.66028; -111.74028	Jefferson	Pegram through truss
St. Anthony Pegram Truss Railroad Bridge	1896, 1914	1997-07-25	St. Anthony 43°57′1″N111°42′59″W / 43.95028°N 111.71639°W / 43.95028; -111.71639	Fremont	Pegram through truss
Washington Water Power Bridges	1929, 1930	1996-12-20	Post Falls 47°42′40″N116°57′8″W / 47.71111°N 116.95222°W / 47.71111; -116.95222 (Washington Water Power Bridges)	Kootenai	Concrete arch/girder

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References

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↑ "National Register Information System". National Register of Historic Places . National Park Service. July 9, 2010.

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[nris-1] "National Register Information System". National Register of Historic Places . National Park Service. July 9, 2010.

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