Texas This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Idaho.[1] Name Image Built Listed Location County Type Boise River and Canal Bridge 1922 2007-02-07 Caldwell43°41′20″N 116°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 Avery47°24′4″N 115°42′4″W / 47.40111°N 115.70111°W / 47.40111; -115.70111 (Bullion Tunnel) Shoshone Capitol Boulevard Memorial Bridge 1931 1990-11-05 Boise43°36′32″N 116°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 Ketchum43°39′14″N 114°20′58″W / 43.65389°N 114.34944°W / 43.65389; -114.34944 (Cold Springs Pegram Truss Railroad Bridge) Blaine Pegram through truss Conant Creek Pegram Truss Railroad Bridge 1894, 1911, 1916 1997-07-25 Grainville44°0′52″N 111°21′51″W / 44.01444°N 111.36417°W / 44.01444; -111.36417 (Conant Creek Pegram Truss Railroad Bridge) Fremont Pegram through truss Gimlet Pegram Truss Railroad Bridge 1894, 1914 1997-07-25 Ketchum43°35′53″N 114°20′43″W / 43.59806°N 114.34528°W / 43.59806; -114.34528 (Gimlet Pegram Truss Railroad Bridge) Blaine Pegram through truss Grace Pegram Truss Railroad Bridge 1894, 1913 1997-07-25 Grace42°35′6″N 111°44′5″W / 42.58500°N 111.73472°W / 42.58500; -111.73472 (Grace Pegram Truss Railroad Bridge) Caribou Pegram through truss Ninth Street Bridge 1911 2001-09-14 Boise43°36′34″N 116°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 Ferry44°19′32″N 116°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 Hagerman42°45′52″N 114°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 Ririe43°39′59″N 111°44′16″W / 43.66639°N 111.73778°W / 43.66639; -111.73778 (Ririe A Pegram Truss Railroad Bridge) Jefferson Pegram through truss Ririe B Pegram Truss Railroad Bridge 1894, 1914 1997-07-25 Ririe43°39′37″N 111°44′25″W / 43.66028°N 111.74028°W / 43.66028; -111.74028 (Ririe B Pegram Truss Railroad Bridge) Jefferson Pegram through truss St. Anthony Pegram Truss Railroad Bridge 1896, 1914 1997-07-25 St. Anthony43°57′1″N 111°42′59″W / 43.95028°N 111.71639°W / 43.95028; -111.71639 (St. Anthony Pegram Truss Railroad Bridge) Fremont Pegram through truss Washington Water Power Bridges 1929, 1930 1996-12-20 Post Falls47°42′40″N 116°57′8″W / 47.71111°N 116.95222°W / 47.71111; -116.95222 (Washington Water Power Bridges) Kootenai Concrete arch/girder References Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) ^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010. Bridges and tunnels on the National Register of Historic Places Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania covered Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington Washington, D.C. West Virginia Wisconsin Wyoming