List of bridges documented by the Historic American Engineering Record in Montana

This is a list of bridges documented by the Historic American Engineering Record in the US state of Montana.[1]

Bridges

Survey No. Name (as assigned by HAER) Status Type[2] Built Documented Carries Crosses Location County Coordinates
MT-1 Victor Bridge Replaced Pratt truss 1907 1981 S-370 Bitterroot River Victor Ravalli 46°24′52″N 114°07′37″W / 46.41444°N 114.12694°W / 46.41444; -114.12694 (Victor Bridge)
MT-2 York Bridge Replaced Pennsylvania truss 1906 1981 S-280 Trout Creek Helena Lewis and Clark 46°42′39″N 111°46′48″W / 46.71083°N 111.78000°W / 46.71083; -111.78000 (York Bridge)
MT-4 Milk River Bridge at Coburg Extant Parker truss 1916 1980 Local Road 194 Milk River Coburg Blaine 48°26′37″N 108°25′30″W / 48.44361°N 108.42500°W / 48.44361; -108.42500 (Milk River Bridge at Coburg)
MT-7 Fromberg Bridge Extant Reinforced concrete closed-spandrel arch 1914 1980 East River Street Clarks Fork Yellowstone River Fromberg Carbon 45°23′30″N 108°53′42″W / 45.39167°N 108.89500°W / 45.39167; -108.89500 (Fromberg Bridge)
MT-8 Tenth Street Bridge Bypassed Reinforced concrete open-spandrel arch 1920 1980 10th Street North Missouri River Great Falls Cascade 47°31′14″N 111°17′25″W / 47.52056°N 111.29028°W / 47.52056; -111.29028 (Tenth Street Bridge)
MT-9 Fort Benton Bridge Bypassed Swing span 1888 1980 15th Street Missouri River Fort Benton Chouteau 47°49′01″N 110°39′58″W / 47.81694°N 110.66611°W / 47.81694; -110.66611 (Fort Benton Bridge)
MT-10 Springdale Bridge Replaced Pennsylvania truss 1908 1981 S-563 Yellowstone River Springdale Park 45°44′38″N 110°13′58″W / 45.74389°N 110.23278°W / 45.74389; -110.23278 (Springdale Bridge)
MT-12 Barber Bridge Replaced Pratt truss 1911 1982 South Barber Road Musselshell River Barber Golden Valley 46°18′30″N 109°23′07″W / 46.30833°N 109.38528°W / 46.30833; -109.38528 (Barber Bridge)
MT-13 Fort Keogh Bridge Demolished Pennsylvania truss 1902 1980 Local Road 056 Yellowstone River Miles City Custer 46°23′54″N 105°53′45″W / 46.39833°N 105.89583°W / 46.39833; -105.89583 (Fort Keogh Bridge)
MT-14 Kinsey Bridge Extant Parker truss 1907 1980 Milwaukee Road Yellowstone River Miles City Custer 46°31′54″N 105°42′51″W / 46.53167°N 105.71417°W / 46.53167; -105.71417 (Kinsey Bridge)
MT-15 Paragon Bridge Extant Parker truss 1907 1980 Milwaukee Road Yellowstone River Miles City Custer 46°22′14″N 105°56′13″W / 46.37056°N 105.93694°W / 46.37056; -105.93694 (Paragon Bridge)
MT-16 Tongue River Bridge Replaced Pennsylvania truss 1879 1980 Local Road 054 (Pacific Avenue) Tongue River Miles City Custer 46°23′56″N 105°51′18″W / 46.39889°N 105.85500°W / 46.39889; -105.85500 (Tongue River Bridge)
MT-17 Deerfield Bridge Demolished Pratt truss 1913 1980 Cristy Bottom Road Judith River Danvers Fergus 47°14′27″N 109°40′52″W / 47.24083°N 109.68111°W / 47.24083; -109.68111 (Deerfield Bridge)
MT-18 Judith River Bridge Replaced Warren truss 1912 1980 Tognetti Road Judith River Moore Fergus 47°03′48″N 109°44′05″W / 47.06333°N 109.73472°W / 47.06333; -109.73472 (Judith River Bridge)
MT-19 Sample's Crossing Bridge Replaced Parker truss 1899 1980 MT 81 Judith River Danvers Fergus 47°16′25″N 109°43′12″W / 47.27361°N 109.72000°W / 47.27361; -109.72000 (Sample's Crossing Bridge)
MT-20 Coram Bridge Extant Baltimore truss 1900 1980 Great Northern Railway Flathead River Coram Flathead 48°24′34″N 114°03′12″W / 48.40944°N 114.05333°W / 48.40944; -114.05333 (Coram Bridge)
MT-21 Old Steel Bridge Replaced Pratt truss 1894 1980 Steel Bridge Road Flathead River Kalispell Flathead 48°12′37″N 114°15′27″W / 48.21028°N 114.25750°W / 48.21028; -114.25750 (Old Steel Bridge)
MT-22 St. Mary River Bridge and Siphon Extant Pratt truss 1915 1980 Camp Nine Road St. Mary River Babb Glacier 48°56′37″N 113°22′14″W / 48.94361°N 113.37056°W / 48.94361; -113.37056 (St. Mary River Bridge and Siphon)
MT-23 Dearborn River High Bridge Extant Pratt truss 1897 1980 S-434 Dearborn River Augusta Lewis and Clark 47°16′52″N 112°23′25″W / 47.28111°N 112.39028°W / 47.28111; -112.39028 (Dearborn River High Bridge)
MT-24 Wolf Creek Bridge Extant Warren truss 1933 1980 Recreation Road Missouri River Craig Lewis and Clark 47°01′08″N 112°00′44″W / 47.01889°N 112.01222°W / 47.01889; -112.01222 (Wolf Creek Bridge)
MT-25 Roundup Bridge Extant Parker truss 1894 1980 Goffena Road Musselshell River Roundup Musselshell 46°29′29″N 108°17′15″W / 46.49139°N 108.28750°W / 46.49139; -108.28750 (Roundup Bridge)
MT-26 Calipso Bridge Extant Parker truss 1907 1980 Milwaukee Road Yellowstone River Terry Prairie 46°46′47″N 105°24′41″W / 46.77972°N 105.41139°W / 46.77972; -105.41139 (Calipso Bridge)
MT-27 Snowden Bridge Extant Vertical-lift bridge 1913 1980 Great Northern Railway Missouri River Nohly and Bainville Richland and Roosevelt 48°00′00″N 104°05′44″W / 48.00000°N 104.09556°W / 48.00000; -104.09556 (Snowden Bridge)
MT-28 Main Channel Bridge Extant Pratt truss 1911 1980 South Gallatin Street Clark Fork River Thompson Falls Sanders 47°35′25″N 115°21′20″W / 47.59028°N 115.35556°W / 47.59028; -115.35556 (Main Channel Bridge)
MT-29 Dry Channel Bridge Extant Pratt truss 1911 1980 South Gallatin Street Clark Fork River Thompson Falls Sanders 47°35′37″N 115°21′14″W / 47.59361°N 115.35389°W / 47.59361; -115.35389 (Dry Channel Bridge)
MT-49 Fish Creek Bridge Replaced Warren truss 1934 1987 Cyr–Iron Mountain Road Fish Creek Alberton Mineral 47°00′23″N 114°41′39″W / 47.00639°N 114.69417°W / 47.00639; -114.69417 (Fish Creek Bridge)
MT-56 Rock Creek Bridge Replaced Pratt truss 1901 1988 Main Street Rock Creek Joliet Carbon 45°28′52″N 108°58′04″W / 45.48111°N 108.96778°W / 45.48111; -108.96778 (Rock Creek Bridge)
MT-59 Vandalia Bridge Replaced Pennsylvania truss 1910 1988 Vandalia Road Milk River Glasgow Valley 48°21′30″N 106°54′17″W / 48.35833°N 106.90472°W / 48.35833; -106.90472 (Vandalia Bridge)
MT-60 Duck Creek Bridge Replaced Warren truss 1915 1988 S-329 (Duck Creek Road) Yellowstone River Billings Yellowstone 45°41′37″N 108°38′27″W / 45.69361°N 108.64083°W / 45.69361; -108.64083 (Duck Creek Bridge)
MT-61 Pine Creek Bridge Replaced Parker truss 1910 1988 Pine Creek Road Yellowstone River Livingston Park 45°30′40″N 110°34′54″W / 45.51111°N 110.58167°W / 45.51111; -110.58167 (Pine Creek Bridge)
MT-62 Greycliff Bridge Replaced Parker truss 1911 1988 Lower Sweet Grass Road Yellowstone River Greycliff Sweet Grass 45°45′36″N 109°46′19″W / 45.76000°N 109.77194°W / 45.76000; -109.77194 (Greycliff Bridge)
MT-63 Blaine Spring Creek Bridge Extant Pratt truss 1892 1989 S-249 Blaine Spring Creek Ennis Madison 45°13′57″N 111°45′23″W / 45.23250°N 111.75639°W / 45.23250; -111.75639 (Blaine Spring Creek Bridge)
MT-64 Upper Madison Bridge Extant Pratt truss 1897 2013 S-249 Madison River Ennis Madison 45°13′58″N 111°45′06″W / 45.23278°N 111.75167°W / 45.23278; -111.75167 (Upper Madison Bridge)
MT-67-A
MT-73 		Avalanche Creek Bridge Extant Reinforced concrete cast-in-place slab 1935 1991 Going-to-the-Sun Road Avalanche Creek West Glacier Flathead 48°40′49″N 113°49′09″W / 48.68028°N 113.81917°W / 48.68028; -113.81917 (Avalanche Creek Bridge)
MT-67-A
MT-75 		Logan Creek Bridge Extant Reinforced concrete cast-in-place slab 1926 1991 Going-to-the-Sun Road Logan Creek West Glacier Flathead 48°43′29″N 113°45′54″W / 48.72472°N 113.76500°W / 48.72472; -113.76500 (Logan Creek Bridge)
MT-67-A
MT-82 		Baring Creek Bridge Extant Reinforced concrete closed-spandrel arch 1931 1991 Going-to-the-Sun Road Baring Creek West Glacier Flathead 48°40′42″N 113°35′45″W / 48.67833°N 113.59583°W / 48.67833; -113.59583 (Baring Creek Bridge)
MT-67-A
MT-84 		St. Mary River Bridge Extant Reinforced concrete closed-spandrel arch 1933 1991 Going-to-the-Sun Road St. Mary River West Glacier Flathead 48°44′58″N 113°26′38″W / 48.74944°N 113.44389°W / 48.74944; -113.44389 (St. Mary River Bridge)
MT-67-B
MT-69 		Common Drainage Culvert Extant Culvert 1937 1991 Going-to-the-Sun Road Unnamed stream West Glacier Flathead 48°32′14″N 113°57′51″W / 48.53722°N 113.96417°W / 48.53722; -113.96417 (Common Drainage Culvert)
MT-67-B
MT-70 		Sprague Creek Culvert Extant Reinforced concrete cast-in-place slab 1931 1991 Going-to-the-Sun Road Sprague Creek West Glacier Flathead 48°36′16″N 113°53′01″W / 48.60444°N 113.88361°W / 48.60444; -113.88361 (Sprague Creek Culvert)
MT-67-B
MT-71 		Snyder Creek Culvert Extant Reinforced concrete cast-in-place slab 1936 1991 Going-to-the-Sun Road Snyder Creek West Glacier Flathead 48°36′59″N 113°52′34″W / 48.61639°N 113.87611°W / 48.61639; -113.87611 (Snyder Creek Culvert)
MT-67-B
MT-72 		Horse Trail Underpass Extant Reinforced concrete cast-in-place slab 1936 1991 Going-to-the-Sun Road Glacier National Park trail West Glacier Flathead 48°38′19″N 113°51′35″W / 48.63861°N 113.85972°W / 48.63861; -113.85972 (Horse Trail Underpass)
MT-67-B
MT-74 		Creek Culvert Extant Reinforced concrete cast-in-place slab 1926 1991 Going-to-the-Sun Road Unnamed stream West Glacier Flathead 48°40′46″N 113°45′55″W / 48.67944°N 113.76528°W / 48.67944; -113.76528 (Creek Culvert)
MT-67-B
MT-78 		Haystack Creek Culvert Extant Reinforced concrete cast-in-place slab 1926 1991 Going-to-the-Sun Road Haystack Creek West Glacier Flathead 48°44′19″N 113°44′43″W / 48.73861°N 113.74528°W / 48.73861; -113.74528 (Haystack Creek Culvert)
MT-67-B
MT-81 		Siyeh Creek Culvert Extant Reinforced concrete cast-in-place slab 1931 1991 Going-to-the-Sun Road Siyeh Creek West Glacier Flathead 48°42′06″N 113°40′04″W / 48.70167°N 113.66778°W / 48.70167; -113.66778 (Siyeh Creek Culvert)
MT-68 Belton Bridge Extant Reinforced concrete open-spandrel arch 1920 1992 Going-to-the-Sun Road Flathead River middle fork West Glacier Flathead 48°29′59″N 113°58′11″W / 48.49972°N 113.96972°W / 48.49972; -113.96972 (Belton Bridge)
MT-77 Granite Creek Culvert Extant Reinforced concrete closed-spandrel arch 1926 1992 Going-to-the-Sun Road Granite Creek West Glacier Flathead 48°44′33″N 113°46′16″W / 48.74250°N 113.77111°W / 48.74250; -113.77111 (Granite Creek Culvert)
MT-79 Triple Arches Extant Stone arch 1928 1992 Going-to-the-Sun Road Pollock Mountain rift West Glacier Flathead 48°43′00″N 113°43′06″W / 48.71667°N 113.71833°W / 48.71667; -113.71833 (Triple Arches)
MT-85 Divide Creek Bridge Extant Reinforced concrete cast-in-place slab 1935 1992 Going-to-the-Sun Road Divide Creek West Glacier Flathead 48°44′39″N 113°25′53″W / 48.74417°N 113.43139°W / 48.74417; -113.43139 (Divide Creek Bridge)
MT-95-L Rainbow Hydroelectric Facility, Stone Culvert Demolished Stone arch 1925 2009 Swimming Pool Road Unnamed stream Great Falls Cascade 47°32′16″N 111°11′52″W / 47.53778°N 111.19778°W / 47.53778; -111.19778 (Rainbow Hydroelectric Facility, Stone Culvert)
MT-95-M Rainbow Hydroelectric Facility, Plank Bridge Demolished Timber stringer 1925 2009 Swimming Pool Road Unnamed stream Great Falls Cascade 47°32′17″N 111°11′52″W / 47.53806°N 111.19778°W / 47.53806; -111.19778 (Rainbow Hydroelectric Facility, Plank Bridge)
MT-96 Wolf Point Bridge Replaced Pennsylvania truss 1930 1997 MT 13 Missouri River Wolf Point and Vida Roosevelt and McCone 48°04′02″N 105°32′06″W / 48.06722°N 105.53500°W / 48.06722; -105.53500 (Wolf Point Bridge)
MT-99 Orange Street Bridge Replaced Warren truss 1937 1999 Orange Street Clark Fork River Missoula Missoula 46°52′18″N 114°00′03″W / 46.87167°N 114.00083°W / 46.87167; -114.00083 (Orange Street Bridge)
MT-100 Milwaukee Road Railroad Overpass Replaced Reinforced concrete T-beam 1936 1999 Orange Street Milwaukee Road Missoula Missoula 46°52′13″N 114°00′10″W / 46.87028°N 114.00278°W / 46.87028; -114.00278 (Milwaukee Road Railroad Overpass)
MT-102 Bundy Bridge Bypassed Warren truss 1915 1998 Bundy Road Yellowstone River Pompey's Pillar Yellowstone 45°59′51″N 108°00′32″W / 45.99750°N 108.00889°W / 45.99750; -108.00889 (Bundy Bridge)
MT-103 Voges Bridge Replaced Pratt truss 1914 1998 Grey Bear Road Yellowstone River Big Timber Sweet Grass 45°47′24″N 110°03′59″W / 45.79000°N 110.06639°W / 45.79000; -110.06639 (Voges Bridge)
MT-106 Milk River Bridge Replaced Parker truss 1911 1999 Tampico North Road Milk River Tampico Valley 48°18′30″N 106°49′21″W / 48.30833°N 106.82250°W / 48.30833; -106.82250 (Milk River Bridge)
MT-107 Buckingham Coulee Bridge Replaced Timber stringer 1936 1999 S-311 Buckingham Coulee Hysham Treasure 46°15′16″N 107°17′01″W / 46.25444°N 107.28361°W / 46.25444; -107.28361 (Buckingham Coulee Bridge)
MT-112 Missouri River Bridge Replaced Pratt truss 1904 2002 Bridge Street Missouri River Craig Lewis and Clark 47°04′28″N 111°57′41″W / 47.07444°N 111.96139°W / 47.07444; -111.96139 (Missouri River Bridge)
MT-114 Logan Overpass Replaced Reinforced concrete T-beam 1934 2003 S-205 Montana Rail Link Logan Gallatin 45°53′05″N 111°26′13″W / 45.88472°N 111.43694°W / 45.88472; -111.43694 (Logan Overpass)
MT-115 Logan Viaduct Demolished Reinforced concrete T-beam 1934 2004 S-205 Trident Road Logan Gallatin 45°53′06″N 111°26′18″W / 45.88500°N 111.43833°W / 45.88500; -111.43833 (Logan Viaduct)
MT-116 Garrison Bridge Replaced Pratt truss 1912 2004 Sawmill Road Clark Fork River Garrison Powell 46°31′11″N 112°48′29″W / 46.51972°N 112.80806°W / 46.51972; -112.80806 (Garrison Bridge)
MT-117 Toluca Overpass Replaced Reinforced concrete T-beam 1936 2004 US 87 / US 212 (former) Burlington Northern Railroad Hardin Big Horn 45°44′44″N 107°51′30″W / 45.74556°N 107.85833°W / 45.74556; -107.85833 (Toluca Overpass)
MT-118 Rosebud Creek Bridge Replaced Warren truss 1929 2004 S-446 Rosebud Creek Rosebud Rosebud 46°16′08″N 106°28′39″W / 46.26889°N 106.47750°W / 46.26889; -106.47750 (Rosebud Creek Bridge)
MT-119 Tongue River Bridge Replaced Steel built-up girder 1934 2004 I-94 BL (Main Street) Tongue River Miles City Custer 46°24′13″N 105°51′31″W / 46.40361°N 105.85861°W / 46.40361; -105.85861 (Tongue River Bridge)
MT-122 Scenic Bridge Extant Pratt truss 1928 2004 US 10 (former) Clark Fork River Tarkio Mineral 47°01′12″N 114°39′25″W / 47.02000°N 114.65694°W / 47.02000; -114.65694 (Scenic Bridge)
MT-123 Merrill Bridge Replaced Parker truss 1913 2005 Snake Creek–Merrill Road Milk River Harlem Blaine 48°31′28″N 108°51′19″W / 48.52444°N 108.85528°W / 48.52444; -108.85528 (Merrill Bridge)
MT-124 Belt Creek Bridge Replaced Warren truss 1923 2005 Belt Street Belt Creek Belt Cascade 47°23′13″N 110°55′37″W / 47.38694°N 110.92694°W / 47.38694; -110.92694 (Belt Creek Bridge)
MT-125 Belt Creek Bridge Demolished Steel rolled stringer 1936 2005 S-288 Belt Creek Waltham Chouteau 47°32′41″N 110°53′59″W / 47.54472°N 110.89972°W / 47.54472; -110.89972 (Belt Creek Bridge)
MT-127 Ten Mile Creek Bridge Replaced Pratt truss 1895 2004 Williams Street Ten Mile Creek Helena Lewis and Clark 46°36′19″N 112°05′18″W / 46.60528°N 112.08833°W / 46.60528; -112.08833 (Ten Mile Creek Bridge)
MT-129 Silver Bridge Replaced Warren truss 1940 2004 US 93 Bitterroot River Hamilton Ravalli 46°16′42″N 114°09′43″W / 46.27833°N 114.16194°W / 46.27833; -114.16194 (Silver Bridge)
MT-131 Rock Creek Bridge Replaced Pratt truss 1991 2006 Fox Road Rock Creek Fox Carbon 45°16′38″N 109°12′35″W / 45.27722°N 109.20972°W / 45.27722; -109.20972 (Rock Creek Bridge)
MT-133 Chicago, Milwaukee, St. Paul & Pacific Railroad Company Bridge No. DD-302 Demolished Trestle 1907 2006 Milwaukee Road Clark Fork River Bonner Missoula 46°51′51″N 113°52′41″W / 46.86417°N 113.87806°W / 46.86417; -113.87806 (Chicago, Milwaukee, St. Paul & Pacific Railroad Company Bridge No. DD-302)
MT-134 Milltown Bridge Extant Parker truss 1921 2007 Anaconda Street Blackfoot River Milltown Missoula 46°52′24″N 113°52′58″W / 46.87333°N 113.88278°W / 46.87333; -113.88278 (Milltown Bridge)
MT-137 Pearson Bridge Replaced Warren truss 1921 2007 Vaughn–Ulm Road Sun River Vaughn Cascade 47°32′44″N 111°31′48″W / 47.54556°N 111.53000°W / 47.54556; -111.53000 (Pearson Bridge)
MT-139 Two Medicine River Bridge Replaced Warren truss 1942 2009 US 2 Two Medicine River East Glacier Park Village Glacier 48°27′00″N 113°12′23″W / 48.45000°N 113.20639°W / 48.45000; -113.20639 (Two Medicine River Bridge)
MT-142 Heron Bridge Extant Cantilever 1920 2010 Heron Road Clark Fork River and Cabinet Gorge Heron Sanders 48°04′07″N 115°58′46″W / 48.06861°N 115.97944°W / 48.06861; -115.97944 (Heron Bridge)
MT-144 Big Hole River Bridge Replaced Warren truss 1914 2010 Pumphouse Road Big Hole River Divide Silver Bow 45°45′35″N 112°48′06″W / 45.75972°N 112.80167°W / 45.75972; -112.80167 (Big Hole River Bridge)
MT-146 Main Street Bridge Replaced Reinforced concrete cast-in-place slab 1933 2013 I-90 BL (Main Street) Cottonwood Creek Deer Lodge Powell 46°24′07″N 112°44′06″W / 46.40194°N 112.73500°W / 46.40194; -112.73500 (Main Street Bridge)
MT-147 Swan River Bridge Extant Prestressed concrete beam 1963 2013 S-209 Swan River Bigfork Flathead 48°03′03″N 113°58′58″W / 48.05083°N 113.98278°W / 48.05083; -113.98278 (Swan River Bridge)
MT-149 Fort Shaw Canal Bridge Extant Reinforced concrete T-beam 1934 2013 MT 21 (Simms–Augusta Road) Fort Shaw Canal Simms Cascade 47°29′42″N 111°58′54″W / 47.49500°N 111.98167°W / 47.49500; -111.98167 (Fort Shaw Canal Bridge)
MT-150 Swiftcurrent Bridge Replaced Reinforced concrete cast-in-place slab 1930 2014 Glacier Route 3 (Babb–Many Glacier Road) Swiftcurrent Creek Babb Glacier 48°47′58″N 113°39′24″W / 48.79944°N 113.65667°W / 48.79944; -113.65667 (Swiftcurrent Bridge)
MT-151 Elk Creek Bridge Extant Reinforced concrete T-beam 1935 2014 MT 21 (Augusta–Sun River Road) Elk Creek Augusta Lewis and Clark 47°30′09″N 112°22′02″W / 47.50250°N 112.36722°W / 47.50250; -112.36722 (Elk Creek Bridge)
MT-152 Musselshell River Bridge Extant Pratt truss 1916 2012 Parrott Creek Road Musselshell River Roundup Musselshell 46°28′18″N 108°23′29″W / 46.47167°N 108.39139°W / 46.47167; -108.39139 (Musselshell River Bridge)
MT-153 Musselshell River Bridge near Absher Extant Warren truss 1916 2012 Queens Point Road Musselshell River Melstone Musselshell 46°33′32″N 107°58′39″W / 46.55889°N 107.97750°W / 46.55889; -107.97750 (Musselshell River Bridge near Absher)
MT-155 Brown's Gulch Bridge Extant Reinforced concrete cast-in-place slab 1921 2015 S-276 Brown's Gulch Creek Butte Silver Bow 46°03′39″N 112°36′51″W / 46.06083°N 112.61417°W / 46.06083; -112.61417 (Brown's Gulch Bridge)
MT-156 Griffith Creek Bridge Extant Timber stringer 1932 2015 Local Road 300 Griffith Creek Glendive Dawson 47°06′16″N 104°35′50″W / 47.10444°N 104.59722°W / 47.10444; -104.59722 (Griffith Creek Bridge)
MT-157 Axtell Bridge Extant Warren truss 1919 2015 Axtell–Anceney Road Gallatin River Gallatin Gateway Gallatin 45°37′23″N 111°12′19″W / 45.62306°N 111.20528°W / 45.62306; -111.20528 (Axtell Bridge)
MT-158 South Fork of the Flathead River Bridge Replaced Steel built-up girder 1938 2015 US 2 Flathead River south fork Hungry Horse Flathead 48°23′04″N 114°04′43″W / 48.38444°N 114.07861°W / 48.38444; -114.07861 (South Fork of the Flathead River Bridge)
MT-159 Beaver Creek Bridge Extant Steel built-up girder 1940 2015 MT 7 (Old U.S. 10) Beaver Creek Wibaux Wibaux 46°59′24″N 104°11′01″W / 46.99000°N 104.18361°W / 46.99000; -104.18361 (Beaver Creek Bridge)
MT-160 Kern's Crossing Bridge Extant Pratt truss 1907 2015 Bridge Road Stillwater River Absarokee Stillwater 45°31′43″N 109°28′10″W / 45.52861°N 109.46944°W / 45.52861; -109.46944 (Kern's Crossing Bridge)
MT-161 Conley Street Bridge Extant Reinforced concrete T-beam 1912 2016 Conley Avenue Clark Fork River Deer Lodge Powell 46°23′26″N 112°44′14″W / 46.39056°N 112.73722°W / 46.39056; -112.73722 (Conley Street Bridge)
MT-162 Old Scobey Road Bridge Extant Pratt truss 1913 2016 Old Scobey Road Poplar River Scobey Daniels 48°47′11″N 105°27′13″W / 48.78639°N 105.45361°W / 48.78639; -105.45361 (Old Scobey Road Bridge)
MT-165 Beaver Creek Bridge Extant Pratt truss 1911 2016 Larb Creek Road Beaver Creek Saco Phillips 48°26′58″N 107°20′42″W / 48.44944°N 107.34500°W / 48.44944; -107.34500 (Beaver Creek Bridge)
MT-166 Armells Creek Bridge Extant Timber stringer 1962 2016 Horse Ranch Road Armells Creek Roy Fergus 47°23′47″N 109°07′54″W / 47.39639°N 109.13167°W / 47.39639; -109.13167 (Armells Creek Bridge)
MT-167 Big Porcupine Creek Bridge Extant Warren truss 1914 2016 Big Porcupine Road Big Porcupine Creek Ingomar Rosebud 46°35′05″N 107°05′45″W / 46.58472°N 107.09583°W / 46.58472; -107.09583 (Big Porcupine Creek Bridge)
MT-168 Maclay Bridge Extant Parker truss 1953 2016 North Avenue Bitterroot River Missoula Missoula 46°51′10″N 114°05′52″W / 46.85278°N 114.09778°W / 46.85278; -114.09778 (Maclay Bridge)
MT-170 Milk River Bridge Extant Pennsylvania truss 1910 2011 North Fork Road Milk River Zurich Blaine 48°34′41″N 109°06′37″W / 48.57806°N 109.11028°W / 48.57806; -109.11028 (Milk River Bridge)
MT-171 South Fork of Milk River Bridge Extant Reinforced concrete closed-spandrel arch 1928 2017 US 89 Milk River south fork Kiowa Glacier 48°39′05″N 113°19′13″W / 48.65139°N 113.32028°W / 48.65139; -113.32028 (South Fork of Milk River Bridge)
MT-173 Yellowstone River Bridge Extant Pratt truss 1930 2017 Twin Bridges Road Yellowstone River Reed Point Stillwater 45°41′12″N 109°26′18″W / 45.68667°N 109.43833°W / 45.68667; -109.43833 (Yellowstone River Bridge)
MT-174 Musselshell River Bridge Extant Steel rolled stringer 1943 2017 US 12 Musselshell River Melstone Musselshell 46°37′14″N 107°49′17″W / 46.62056°N 107.82139°W / 46.62056; -107.82139 (Musselshell River Bridge)

References

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  1. ^ Library of Congress. "Prints and Photographs Online Catalog: Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey". Retrieved January 18, 2022.
  2. ^ Parsons Brinckerhoff; Engineering and Industrial Heritage (October 2005). "NCHRP Project 25-25, Task 15: A Context For Common Historic Bridge Types" (PDF). National Cooperative Highway Research Program, Transportation Research Council, National Research Council. Retrieved January 18, 2022.


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