| I 90 EB over Rr | Poor | 250.0 ft | 5,992 | 1973 |
| I 90 over Rr | Poor | 264.8 ft | 5,992 | 1973 |
| I 90 over Int W Garrison-rr | Poor | 709.6 ft | 5,232 | 1979 |
| Main ST over Clark Fork River | Poor | 134.8 ft | 2,330 | 1949 |
| S 141 over Nevada Creek | Poor | 57.7 ft | 1,594 | 1936 |
| S Frontage RD 011 over Dempsey Creek 059 | Poor | 64.0 ft | 916 | 1930 |
| Chokecherry LN over Little Blackfoot R 027 | Poor | 61.0 ft | 19 | 1914 |
| I 90 over Dempsey Creek | Fair | 29.9 ft | 10,708 | 1973 |
| I 90 over Jr Grade Sep | Fair | 22.6 ft | 10,463 | 1961 |
| I 90 over Jr Grade Sep | Fair | 22.6 ft | 10,463 | 1961 |
| I 90 over Int Jens | Fair | 113.8 ft | 5,992 | 1959 |
| I 90 over Int Jens | Fair | 113.8 ft | 5,992 | 1959 |
| I 90 EB over Int Gold Creek | Fair | 154.9 ft | 5,992 | 1959 |
| I 90 WB over Int Gold Creek | Fair | 154.9 ft | 5,992 | 1959 |
| I 90 over Clark Fork River | Fair | 152.9 ft | 5,354 | 1961 |
| I 90 over Clark Fork River | Fair | 152.9 ft | 5,354 | 1961 |
| I 90 over Int W Garrisison-rr | Fair | 709.6 ft | 5,232 | 1979 |
| I 90 over Little Blackfoot River | Fair | 132.5 ft | 5,232 | 1979 |
| I 90 over Int E Garrison-rr | Fair | 597.8 ft | 5,232 | 1979 |
| I 90 over Int E Garrison-rr | Fair | 581.7 ft | 5,232 | 1979 |
| I 90 over Int Phosphate | Fair | 128.0 ft | 5,136 | 1973 |
| I 90 over Int Phosphate | Fair | 143.0 ft | 5,136 | 1973 |
| I 90 over Sep Garrison Frontage RD | Fair | 78.1 ft | 5,136 | 1973 |
| I 90 over Sep Garrison Frontage RD | Fair | 78.1 ft | 5,136 | 1973 |
| I 90 over Int N Deer Lodge | Fair | 124.3 ft | 4,371 | 1961 |
| I 90 over Int N Deer Lodge | Fair | 124.3 ft | 4,371 | 1974 |
| I 90 over Sep Milwaukee Avenue | Fair | 118.1 ft | 4,371 | 1961 |
| I 90 over Sep Milwaukee Avenue | Fair | 118.1 ft | 4,371 | 1974 |
| I 90 over Sep Eastside Road | Fair | 168.0 ft | 4,371 | 1961 |
| I 90 over Sep Eastside Road | Fair | 143.0 ft | 4,371 | 1974 |
| US 12 over Little Blackfoot River | Fair | 71.9 ft | 3,430 | 1988 |
| W Milwaukee AVE over Clark Fork River | Fair | 120.1 ft | 3,314 | 1940 |
| US 12 over Little Blackfoot Riv-rr | Fair | 745.1 ft | 3,217 | 2009 |
| US 12 over Little Blackfoot River | Fair | 118.1 ft | 3,217 | 1982 |
| S 200 over N Fork Blackfoot River | Fair | 182.1 ft | 2,959 | 1956 |
| US 12 over Little Blackfoot River | Fair | 91.9 ft | 2,872 | 1982 |
| S 200 over Monture Creek | Fair | 122.0 ft | 2,822 | 1986 |
| S 141 over Blackfoot River | Fair | 194.6 ft | 1,674 | 2004 |
| S 141 over Halfway Creek | Fair | 38.1 ft | 1,594 | 1936 |
| US 12 over Rr | Fair | 203.7 ft | 1,416 | 1949 |
| US 12 over Little Blackfoot River | Fair | 140.4 ft | 1,416 | 1952 |
| S 141 over Stockpass-drainage | Fair | 22.0 ft | 1,408 | 1965 |
| S Frontage RD 011 over Powell Creek 063 | Fair | 36.4 ft | 916 | 1930 |
| S Frontage RD 011 over Racetrack Creek 067 | Fair | 35.1 ft | 916 | 1930 |
| S 271 over Nevada Creek | Fair | 40.7 ft | 308 | 1947 |
| Burns ST over Little Blackfoot R 019 | Fair | 34.4 ft | 281 | 1960 |
| Rock Creek Cattle over Clark Fork River 038 | Fair | 113.5 ft | 280 | 1989 |
| Rock Creek Cattle over Clark Fork River 03 | Fair | 114.5 ft | 280 | 1989 |
| Gold Creek RD over Clark Fork River 032 | Fair | 200.1 ft | 242 | 1982 |
| Lower Game Range R over Cottonwood Creek | Fair | 30.8 ft | 100 | 1990 |
| E Sager Lane over Irrigation Canal | Fair | 22.0 ft | 100 | 1990 |
| Little Blackfoot R over Little Blackfoot R 021 | Fair | 24.0 ft | 100 | 1976 |
| Telegraph CR RD over Telegraph Creek 061 | Fair | 24.0 ft | 100 | 1950 |
| S Mullan Trail RD over Clark Fork River 030 | Fair | 200.1 ft | 100 | 2003 |
| S Mullan Trail RD over Rr 028 | Fair | 128.0 ft | 100 | 2000 |
| Trout Creek RD over Little Blackfoot R 018 | Fair | 127.0 ft | 100 | 1908 |
| E Sager LN over Clark Fork River 048 | Fair | 154.2 ft | 100 | 2006 |
| Race Track RD over Int Racetrack-i 90 001 | Fair | 279.9 ft | 100 | 1978 |
| River Junction/ Sc over Blackfoot River 004 | Fair | 210.0 ft | 100 | 1994 |
| Raymond RD over Blackfoot River 077 | Fair | 164.0 ft | 100 | 1997 |
| Cut Off RD over Big Blackfoot River 002 | Fair | 91.5 ft | 100 | 1955 |
| Dry Gulch RD over N Fork Blackfoot R 007 | Fair | 96.8 ft | 100 | 1968 |
| Kohrs ST over Cottonwood Creek 065 | Fair | 21.0 ft | 100 | 2003 |
| Ramp To Main ST over Int S Deer Lodge-i 90 | Fair | 255.9 ft | 100 | 1961 |
| Sawmill RD over Clark Fork River 026 | Fair | 168.3 ft | 78 | 2006 |
| C.wood Lakes RD over Morrell Creek | Fair | 32.2 ft | 50 | 1954 |
| No Data Entered over Monture Creek | Fair | 61.0 ft | 50 | 1953 |
| Ovando Helmville R over N Fk Blackfoot River 005 | Fair | 142.7 ft | 50 | 2000 |
| Ovando Helmville R over Big Blackfoot River 006 | Fair | 189.0 ft | 50 | 1953 |
| Beck Hill RD over Int Beckhill I 90 008 | Fair | 304.1 ft | 49 | 1978 |
| No Data Entered over No Data Entered | Fair | 32.5 ft | 40 | 2010 |
| Road over Racetrack CR | Fair | 32.5 ft | 40 | 1985 |
| N.fk Blackft RD over Lake CR | Fair | 90.6 ft | 40 | 1964 |
| N.fk Blackft RD over N Fk Blackfoot Riv | Fair | 143.0 ft | 40 | 1960 |
| No Data Entered over Lodgepole CR | Fair | 43.6 ft | 40 | 1996 |
| 2864: Braziel Cr. over Nevada Creek | Fair | 66.6 ft | 25 | 1977 |
| 2801: Chamberlain over East Fork Chamberlain CR | Fair | 25.6 ft | 25 | 2008 |
| I 90 over Sep Sager Lane | Good | 79.1 ft | 5,354 | 1975 |
| I 90 over Sep Sager Lane | Good | 79.1 ft | 5,354 | 1975 |
| I 90 over Little Blackfoot River | Good | 130.9 ft | 5,232 | 1979 |
| Main ST over Cottonwood Creek | Good | 52.8 ft | 5,074 | 2014 |
| S 200 over Cottonwood Creek | Good | 24.0 ft | 2,822 | 1954 |
| S 200 over Arrastra Creek | Good | 78.7 ft | 1,683 | 2008 |
| Mt 141 over Threemile Creek | Good | 26.9 ft | 1,594 | 1961 |
| S Frontage RD 011 over Abandoned Rr 043 | Good | 23.6 ft | 916 | 2014 |
| Clark ST over Cottonwood Creek 083 | Good | 36.1 ft | 245 | 2007 |
| Little Blackfoot R over Little Blackfoot River | Good | 67.9 ft | 100 | 1981 |
| Second Street over Cottonwood Creek | Good | 38.4 ft | 100 | 2012 |
| Conley AVE over Clark Fork River | Good | 171.9 ft | 100 | 2021 |
| Willow RD over Little Blackfoot R 042 | Good | 63.0 ft | 100 | 2023 |
| Rock Creek Lake RD over Rock Creek 079 | Good | 49.9 ft | 100 | 2009 |
| N Old Stage RD over Rock Creek 078 | Good | 36.4 ft | 100 | 2007 |
| Yellowstone Trail over Racetrack Creek 036 | Good | 51.8 ft | 100 | 2006 |
| Sawmill RD over Rock Creek 047 | Good | 61.7 ft | 100 | 2006 |
| Lower Game Range R over Cottonwood Creek 054 | Good | 24.0 ft | 100 | 1978 |
| Center ST over Cottonwood Creek 049 | Good | 43.0 ft | 100 | 2015 |
| Clagett ST over Cottonwood Creek 081 | Good | 36.1 ft | 100 | 2007 |
| Fourth ST over Cottonwood Creek 080 | Good | 36.1 ft | 100 | 2007 |
| Willow Road over Racetrack Creek | Good | 60.7 ft | 75 | 2015 |
| Nfsr 314 over Trout Creek | Good | 30.8 ft | 50 | 2004 |
| Morrell Creek RD over Morrell Creek | Good | 83.0 ft | 50 | 2015 |
| No Data Entered over Ef Spruce Creek | Good | 42.7 ft | 50 | 2020 |
| No Data Entered over West Fork Spruce Creek | Good | 43.0 ft | 50 | 2020 |
| No Data Entered over Dunham Creek | Good | 85.0 ft | 50 | 2020 |
| Beck Hill RD over Little Blackfoot R 023 | Good | 116.1 ft | 49 | 2011 |
| Road 227 over Kading Creek | Good | 32.2 ft | 40 | 2011 |
| Route 4106 over Klondike Creek | Good | 39.0 ft | 40 | 2013 |
| Route 4106 over Theodore | Good | 34.1 ft | 40 | 2015 |
| No Data Entered over Lodgepole CR | Good | 49.5 ft | 40 | 1996 |
| Cottonwood Lk RD over Cottonwood Creek | Good | 31.5 ft | 40 | 2007 |
| No Data Entered over Blackfoot River | Good | 164.4 ft | 31 | 2011 |
| Greenhouse RD over Dempsey Creek | Good | 21.7 ft | 23 | 2000 |
| Snow Shoe CR RD over Little Blackfoot R 017 | Good | 40.0 ft | 10 | 2001 |