| I 15 over Prickly Pear Creek | 1969 | 5,987 | Fair |
| I 15 over Prickly Pear Creek | 1969 | 5,987 | Fair |
| S 518 over Int Montana City-i 15 | 1968 | 5,885 | Good |
| I 90 Eastbound over Boulder River | 1968 | 5,599 | Good |
| I 90 Westbound over Boulder River | 1968 | 5,599 | Fair |
| I 90 over Int Cardwell-s 359 | 1968 | 5,599 | Fair |
| I 90 over Int Cardwell-s 359 | 1968 | 5,599 | Fair |
| I 90 over Sep County Road | 1969 | 5,599 | Fair |
| I 90 over Sep County Road | 1969 | 5,599 | Fair |
| I 90 Eastbound over Int Whitehall | 1966 | 5,175 | Fair |
| I 90 Eastbound over P 69 | 1968 | 5,175 | Fair |
| I 90 Westbound over Int Whitehall | 1966 | 5,175 | Fair |
| I 90 Westbound over P 69 | 1968 | 5,175 | Fair |
| I 90 over Int Pipestone | 1966 | 4,650 | Good |
| I 90 over Int Pipestone | 1966 | 4,650 | Good |
| I 90 over RR | 1966 | 4,650 | Fair |
| I 90 over RR | 1966 | 4,650 | Fair |
| I 90 over Sep Sheep Camp Rd | 1966 | 4,650 | Fair |
| I 90 over Sep Sheep Camp Rd | 1966 | 4,650 | Fair |
| I 15 over Boulder River | 1980 | 3,856 | Fair |
| I 15 over Boulder Rvr-frontage Rd | 1982 | 3,856 | Fair |
| I 15 over Int Basin | 1985 | 3,856 | Fair |
| I 15 over Int High Ore | 1982 | 3,856 | Fair |
| I 15 over Sep Galena Gulch Road | 1981 | 3,856 | Fair |
| I 15 NB over Abandoned RR | 1969 | 3,787 | Fair |
| I 15 over Abandoned RR | 1969 | 3,787 | Fair |
| I 15 over Int Clancy | 1969 | 3,787 | Fair |
| I 15 over Int Clancy | 1969 | 3,787 | Good |
| I 15 over Sep Lump Gulch Road | 1969 | 3,787 | Fair |
| I 15 over Sep Lump Gulch Road | 1969 | 3,787 | Fair |
| I 15 over Sep S Hwy 282 | 1968 | 3,787 | Fair |
| I 15 over Sep S Hwy 282 | 1968 | 3,787 | Fair |
| I 15 over Boulder River | 1985 | 3,182 | Fair |
| I 15 over Boulder River | 1985 | 3,182 | Fair |
| I 15 over Boulder River | 1985 | 3,182 | Fair |
| I 15 over Boulder River | 1985 | 3,182 | Fair |
| I 15 over Boulder River | 1985 | 3,182 | Fair |
| I 15 over Boulder River | 1985 | 3,182 | Fair |
| I 15 over Red Rock Creek | 1984 | 3,182 | Good |
| I 15 over Sep Silver Ave-basin CR | 1985 | 3,182 | Fair |
| S 69 over Boulder River | 2003 | 3,016 | Fair |
| N 55 over Pipestone Creek | 2018 | 2,969 | Good |
| I 15 over Sep Amazon Rd | 1973 | 2,534 | Fair |
| I 15 over Sep Amazon Road | 1973 | 2,534 | Fair |
| I 15 over Sep Troy Creek Road | 1973 | 2,534 | Fair |
| I 15 over Sep Troy Creek Road | 1973 | 2,534 | Fair |
| Hwy 282 over Prickly Pear Creek | 2024 | 2,485 | Good |
| S Hills Rd-hwy 282 over I-15 | 1968 | 1,979 | Fair |
| I 15 over Boulder River | 1980 | 1,928 | Fair |
| I 15 over Boulder River | 1980 | 1,928 | Fair |
| I 15 over Boulder River | 1980 | 1,928 | Fair |
| I 15 over Boulder River | 1979 | 1,928 | Fair |
| I 15 over Boulder Rvr-access Rd | 1980 | 1,928 | Fair |
| I 15 over Boulder Rvr-access Rd | 1980 | 1,928 | Fair |
| I 15 over Sep Depot Hill Road | 1973 | 1,928 | Fair |
| I 15 over Sep Depot Hill Road | 1973 | 1,928 | Fair |
| Mt 55 over Fish Creek | 1953 | 1,858 | Poor |
| I 15 over Boulder River | 1985 | 1,591 | Good |
| I 15 over Boulder River | 1985 | 1,591 | Good |
| I 15 over Int Bernice-boulder R Rd | 1985 | 1,591 | Fair |
| I 15 over Int Bernice-boulder R Rd | 1985 | 1,591 | Fair |
| I 15 over Int Trask-lowland Rd | 1976 | 1,576 | Good |
| I 15 over Int Trask-lowland Rd | 1976 | 1,576 | Good |
| I 15 over Int Woodville | 1976 | 1,576 | Fair |
| I 15 over Int Woodville | 1976 | 1,576 | Fair |
| I 15 over Sep Elk Park-e Elk Park | 1985 | 1,576 | Fair |
| I 15 over Sep Elk Park-e Elk Park | 1985 | 1,576 | Fair |
| I 15 over Sep Sawmill Gulch | 1976 | 1,576 | Fair |
| I 15 over Sep Sawmill Gulch | 1976 | 1,576 | Fair |
| S 2 over Whitetail Creek | 1955 | 1,419 | Fair |
| S 359 over Jefferson River Slough | 1968 | 1,362 | Fair |
| US 287 over Jefferson River | 2001 | 1,227 | Fair |
| Mt Hwy 2 over RR 061 | 1932 | 1,001 | Poor |
| S-282 Haab Lane over Prickly Pear Creek | 1981 | 927 | Good |
| S 69 over Animal Crossing | 2016 | 913 | Good |
| S 69 over Little Boulder River | 2016 | 913 | Fair |
| S 2 over Rader Creek | 1931 | 686 | Fair |
| Mt Hwy 2 over Big Pipestone Creek 062 | 1931 | 608 | Fair |
| Mt Hwy 2 over Colbert Creek 063 | 1931 | 608 | Fair |
| S 41 over Little Pipestone Creek | 1934 | 473 | Fair |
| Mt Hwy 2 over Boulder River 064 | 1968 | 392 | Fair |
| Whitetail Rd over Whitetail Creek | 1983 | 292 | Fair |
| Waterloo Rd over Jefferson River | 1961 | 242 | Fair |
| Tebay Ln over Jef Riv Overflow 013 | 2003 | 180 | Fair |
| Tebay Ln over Jefferson River 012 | 1986 | 180 | Fair |
| Tebay Ln over Jefferson Slough 014 | 1991 | 180 | Fair |
| Basin Creek Rd over Basin Creek 032 | 1960 | 100 | Fair |
| Basin Creek Road over Basin Creek | 1966 | 100 | Fair |
| Basin St over Basin Creek 040 | 1931 | 100 | Fair |
| Boulder Cut Off Rd over Boulder River 003 | 1981 | 100 | Fair |
| Capp Lane over Pipestone Creek | 1930 | 100 | Fair |
| Cataract Creek Rd over Cataract Creek 034 | 1967 | 100 | Fair |
| Cataract Creek Rd over Cataract Creek 035 | 1965 | 100 | Fair |
| Cataract Creek Rd over Cataract Creek 036 | 1965 | 100 | Fair |
| Cataract Creek Rd over Cataract Creek 048 | 1939 | 100 | Fair |
| Cataract Creek Rd over Cataract Creek 071 | 2005 | 100 | Good |
| Cataract Creek Rd over Cataract Creek 072 | 2005 | 100 | Good |
| Cattle Drive Rd over Boulder River 017 | 1983 | 100 | Fair |
| Cottonwood Rd over Boulder River 009 | 1983 | 100 | Good |
| Dunn Ln over Boulder River 028 | 2015 | 100 | Good |
| E 1ST Street over Whitetail Creek 023 | 1984 | 100 | Fair |
| E Elk Park Rd over Bison Creek 016 | 1927 | 100 | Poor |
| Frontage Road 925 over Int Jeff City-i 15 001 | 1970 | 100 | Fair |
| Galena Gulch Rd over Boulder River 016 | 2003 | 100 | Fair |
| High Ore Rd over Boulder River 038 | 1980 | 100 | Fair |
| Homestake Pass over Int Homestake-i 90 005 | 1966 | 100 | Good |
| Hot Springs Road over Big Pipestone Creek | 2020 | 100 | Good |
| Hubbard Ln over Boulder River 031 | 2001 | 100 | Fair |
| I 15 Frontage Rd over Basin Creek 041 | 1985 | 100 | Poor |
| I 15 Frontage Rd over Bison Creek 047 | 1985 | 100 | Fair |
| I 15 Frontage Rd over Boulder River 042 | 1985 | 100 | Fair |
| I 15 Frontage Rd over Boulder River 043 | 1985 | 100 | Fair |
| I 15 Frontage Rd over Boulder River 046 | 1985 | 100 | Fair |
| I 15 Frontage Rd over Cataract Creek 030 | 1933 | 100 | Poor |
| Jewett Ln over Irrigation Canal 008 | 2021 | 100 | Good |
| Legal Tender Ln over Prickly Pear Creek 070 | 1976 | 100 | Fair |
| Lower Valley Rd - over Boulder River 030 | 1977 | 100 | Fair |
| Lump Gulch Road over Prickly Pear Creek 074 | 2007 | 100 | Good |
| Mcclellan Creek Rd over Prickly Pear Creek 021 | 1975 | 100 | Fair |
| Meridian Road over Jefferson River | 2023 | 100 | Good |
| Milligan Canyon Rd over Int Milligan-i 90 004 | 1969 | 100 | Fair |
| Non Maintained Trl over Bison Creek | 1984 | 100 | Fair |
| Non Maintained Trl over Bison Creek | 1984 | 100 | Fair |
| Paul Gulch Rd over Sep I 90 002 | 1966 | 100 | Fair |
| Quaintance Ln over Boulder Ditch 029 | 2010 | 100 | Good |
| Railroad Way over Prickly Pear Creek 065 | 1976 | 100 | Fair |
| S 69 over Int Boulder I 15 | 1973 | 100 | Fair |
| Sleepy Hollow Ln over Prickly Pear Creek | 2010 | 100 | Poor |
| Tizer Creek Road over Prickly Pear Creek 085 | 2005 | 100 | Good |
| White Bridge Rd over Boulder River 044 | 1979 | 100 | Fair |
| Yellowstone Trail over Whitetail Creek 024 | 1986 | 100 | Fair |
| Galena Gulch Road over Boulder River | 1957 | 50 | Fair |
| No Data Entered over Bison Creek | 1986 | 50 | Fair |
| No Data Entered over Hells Canyon Creek | 1998 | 50 | Good |
| Mcclellean Ck Road over Mcclellan Creek | 1959 | 40 | Poor |
| Shamrock Road over Boulder River | 1980 | 40 | Fair |