| I 15 over Bell Creek | 1963 | 19,755 | Fair |
| I-90 E&w over Abandoned Railroad | 2019 | 15,011 | Good |
| S Montana St over Silver Bow Creek | 1970 | 14,718 | Fair |
| I 15 over Int Rocker | 1968 | 10,824 | Fair |
| I 15 over Int Rocker | 1968 | 10,824 | Fair |
| I 90 over Whitetail Creek | 1965 | 10,349 | Fair |
| I 15 over Int S Montana Street | 1961 | 9,878 | Fair |
| I 15 over Int S Montana Street | 1961 | 9,878 | Fair |
| I 90 over Sep Laird St-frontage Rd | 1967 | 7,506 | Fair |
| I 15 over Local Rarus-rr | 2019 | 7,379 | Good |
| I 15 over Local-rarus RR | 2018 | 7,379 | Good |
| I 15 over Rr-local | 2010 | 7,379 | Fair |
| I 15 over Rr-local | 2012 | 7,379 | Fair |
| I 15 over Silverbow Creek-rr | 2018 | 7,379 | Good |
| I 15 over Silverbow Creek-rr | 2019 | 7,379 | Good |
| I 90 over Int Nissler | 1968 | 7,361 | Fair |
| I 90 over Int Nissler | 1968 | 7,361 | Fair |
| I 90 over Sep Laird St-frontage Rd | 1967 | 7,361 | Fair |
| I 15 over Int Harrison Ave | 1960 | 7,009 | Fair |
| I 15 over Int Harrison Ave | 1960 | 7,009 | Fair |
| Shields Ave over Drainage | 1958 | 6,411 | Fair |
| Shields Ave over RR | 1958 | 6,411 | Fair |
| Continental Dr over Sep I 15 | 1963 | 5,500 | Fair |
| I 90 over Int I 15 | 1963 | 5,476 | Fair |
| I 90 over Int I-15 | 1963 | 5,476 | Fair |
| Lexington Ave over Sep Lexington St 016 | 1960 | 3,768 | Fair |
| I 15 over Local-creek-rarus RR | 1961 | 3,728 | Fair |
| I 15 over Local-creek-rarus RR | 1961 | 3,728 | Fair |
| I 15 over Int Buxton-buxton Rd | 1976 | 2,570 | Good |
| I 15 over Int Buxton-buxton Rd | 1976 | 2,570 | Good |
| I 15 over Int Moose Creek | 1976 | 2,354 | Fair |
| I 15 over Int Moose Creek | 1976 | 2,354 | Fair |
| I 15 over Highland Road | 1976 | 2,283 | Fair |
| I 15 over Highland Road | 1976 | 2,283 | Fair |
| I 15 over Int Divide-hwy 43 | 1976 | 2,283 | Fair |
| I 15 over Int Divide-hwy 43 | 1976 | 2,283 | Good |
| I 15 over Tucker Creek Road | 1976 | 2,283 | Fair |
| I 15 over Tucker Creek Road | 1976 | 2,283 | Fair |
| I 115S over Excelsior Ave | 1955 | 2,242 | Fair |
| I 115S over Sep I 15 | 1964 | 2,242 | Fair |
| Centennial Ave over RR 015 | 1955 | 2,202 | Fair |
| I 15 over RR (tracks Not In Use) | 1986 | 2,176 | Fair |
| I 15 over RR (tracks Not In Use) | 1966 | 2,176 | Fair |
| N Main St over Canal - Walking Path | 2009 | 2,107 | Fair |
| Sheridan Ave over Sep Sheridan St I 15 002 | 1960 | 1,995 | Fair |
| Oregon Ave over Sep Oregon Street 017 | 1960 | 1,232 | Fair |
| S Rocker Rd over Silver Bow Creek 007 | 1987 | 869 | Fair |
| Fairmont Rd over Int Gregson-i 90 | 1967 | 727 | Fair |
| Fairmont Rd over Silver Bow Creek | 1980 | 727 | Fair |
| S 43 over Divide Creek | 1956 | 719 | Fair |
| S 43 over Big Hole River | 1968 | 616 | Fair |
| Burlington St over Sep I 90 006 | 1964 | 583 | Fair |
| S 41 over Fish Creek | 1934 | 407 | Fair |
| Trapper Creek Rd over Big Hole River 008 | 2001 | 191 | Fair |
| Silver Bow Rd over Silver Bow Creek 014 | 2006 | 102 | Fair |
| Empire Street over Drainage | 1953 | 100 | Poor |
| German Gulch Rd over Int Victor I 15 003 | 1961 | 100 | Poor |
| German Gulch Rd over RR 012 | 2014 | 100 | Fair |
| I 115S over Excelsior Ave | 1955 | 100 | Fair |
| Mt Highland Dr over Int Cont Dr I 90 011 | 1969 | 100 | Fair |
| N Montana St over Walking Path 004 | 1962 | 100 | Fair |
| Palmer St over Int Ramsey I 90 013 | 1967 | 100 | Fair |
| Pumphouse Rd over Big Hole River 009 | 1914 | 100 | Fair |
| Soap Gulch Rd over Sep Soap Crk Rd I 15 005 | 1973 | 100 | Good |
| Divide Creek Rd over Int Feely I 15 001 | 1976 | 51 | Fair |
| No Data Entered over Beefstraight CR | 1963 | 50 | Fair |
| No Data Entered over German Gulch | 1966 | 50 | Good |
| No Data Entered over Fish CR | 1986 | 40 | Good |
| Miles Crossing over Silver Bow Creek 010 | 2007 | 38 | Fair |
| 18131: Maiden Rock over Big Hole River | 1951 | 25 | Fair |