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

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

NameImageBuiltListedLocationCountyTypeBoise River and Canal Bridge19222007-02-07CaldwellCanyonWarren camelback through trussBullion Tunnel19101984-09-20AveryShoshoneCapitol Boulevard Memorial Bridge19311990-11-05BoiseAdaClearwater River Camas Prairie Railroad Bridge19082025-09-23LewistonNez PerceCold Springs Pegram Truss Railroad Bridge1894, 19171997-07-25KetchumBlainePegram through trussConant Creek Pegram Truss Railroad Bridge1894, 1911, 19161997-07-25GrainvilleFremontPegram through trussGimlet Pegram Truss Railroad Bridge1894, 19141997-07-25KetchumBlainePegram through trussGrace Pegram Truss Railroad Bridge1894, 19131997-07-25GraceCaribouPegram through trussNinth Street Bridge19112001-09-14BoiseAdaPratt through trussNorth Fork Payette River Bridge19331999-04-02Smiths FerryValleyReinforced concrete archOwsley Bridge19211998-09-18HagermanGoodingCantilevered Warren trussRirie A Pegram Truss Railroad Bridge1894, 19141997-07-25RirieJeffersonPegram through trussRirie B Pegram Truss Railroad Bridge1894, 19141997-07-25RirieJeffersonPegram through trussSt. Anthony Pegram Truss Railroad Bridge1896, 19141997-07-25St. AnthonyFremontPegram through trussWashington Water Power Bridges1929, 19301996-12-20Post FallsKootenaiConcrete arch/girder

References