Yellowstone County, Montana bridges
Yellowstone County has 290 bridges and culverts in the National Bridge Inventory, the oldest built in 1925. 7 (2%) are rated poor. The most common type is stringer/multi-beam or girder (51%).
- Bridges
- 290
- Good
- 33%
- Fair
- 64%
- Poor
- 2%
- 7 bridges
- Average age
- 44.3 yrs
- Posted or closed
- 5
Map of bridges in Yellowstone County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Yellowstone County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good33%(97)
Fair64%(186)
Poor2%(7)
When they were built
Busiest
- I90 over Mt Power RR SpurGood29,488 vehicles/day
- I 90 over City County Drain DitchFair27,985 vehicles/day
- King Ave W over Bbwa CanalFair26,602 vehicles/day
- Mullowney LN over RRGood23,980 vehicles/day
- Mullowney LN over RRFair23,980 vehicles/day
Longest
- Bbp over Yellowstone RiverGood1,859 ft
- Montana Ave over U1024-25-RRPoor1,713 ft
- Montana Ave over U1025-RRPoor1,711 ft
- Poor
- Fair
Oldest
- S 56th ST W over Canyon Creek Ditch 075FairBuilt 1925
- Old US 87 over E Fork Pryor Creek 174FairBuilt 1926
- Old HWY 312 over Custer Coulee 171FairBuilt 1928
- Old HWY 10 over Bighorn River 126FairBuilt 1930
- Old US 10 over Big Ditch 051PoorBuilt 1932
All bridges in Yellowstone County
Busiest first · showing 1–200 of 290| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| I90 over Mt Power RR Spur No. 000000202301763 | Billings | 2023 | Culvert | 54 ft | 29,488 | Good |
| I 90 over City County Drain Ditch No. I00090448+04001 | Billings | 1966 | Culvert | 23 ft | 27,985 | Fair |
| King Ave W over Bbwa Canal No. U01010001+03751 | Billings-King Ave W | 1994 | Tee Beam | 52 ft | 26,602 | Fair |
| Mullowney LN over RR No. U01010002+06981 | Billings-Mullowney LN | 2007 | Stringer/Multi-beam or Girder | 161 ft | 23,980 | Good |
| Mullowney LN over RR No. U01010002+06982 | Billings-Mullowney LN | 2007 | Stringer/Multi-beam or Girder | 161 ft | 23,980 | Fair |
| US 87 over Int Lockwood I 90 No. P00016000+00001 | Billings | 1966 | Stringer/Multi-beam or Girder | 276 ft | 23,199 | Fair |
| US 87 over RR No. P00016000+04641 | Billings | 1993 | Stringer/Multi-beam or Girder | 267 ft | 23,199 | Fair |
| US 87 over Yellowstone River No. P00016000+06721 | Billings-Dick Johnston Br | 1993 | Stringer/Multi-beam or Girder | 566 ft | 23,199 | Fair |
| Central Ave over Bbwa Canal No. U01008001+07501 | Billings-Central Ave | 1978 | Stringer/Multi-beam or Girder | 53 ft | 17,985 | Fair |
| Grand Ave over Bbwa Canal No. U01004001+08401 | Billings-Grand Ave | 1981 | Slab | 51 ft | 15,881 | Fair |
| S Billings Blvd over Sep Billings Blvd-I 90 No. U01013000+07771 | Billings-S Billings Blvd | 1963 | Stringer/Multi-beam or Girder | 215 ft | 15,780 | Fair |
| I 90 over Hogan Slough No. I00090445+04541 | Billings | 1959 | Stringer/Multi-beam or Girder | 82 ft | 15,229 | Fair |
| I 90 over Yellowstone River No. 000000202201766 | Billings | 2022 | Stringer/Multi-beam or Girder | 975 ft | 14,744 | Fair |
| I-90 over Yellowstone River No. 000000202301765 | Billings | 2023 | Stringer/Multi-beam or Girder | 975 ft | 14,744 | Fair |
| Mullowney LN over Laurel Road No. U01010002+09211 | Billings-Mullowney LN | 2007 | Stringer/Multi-beam or Girder | 172 ft | 13,348 | Fair |
| S Shiloh RD over Bbwa Canal No. S00429003+03271 | 2M W Billings | 2000 | Tee Beam | 55 ft | 12,688 | Fair |
| I 90 over Int Mossmain Road-P 4 No. I00090437+04791 | 3.1M E Laurel | 1964 | Stringer/Multi-beam or Girder | 120 ft | 12,397 | Fair |
| I 90 over Int Mossmain Road-P 4 No. I00090437+04792 | 3.1M E Laurel | 1964 | Stringer/Multi-beam or Girder | 120 ft | 12,397 | Fair |
| I 90 over Bbwa Canal No. I00090438+00391 | 3.7M E Laurel | 1964 | Stringer/Multi-beam or Girder | 41 ft | 12,397 | Fair |
| I 90 over Bbwa Canal No. I00090438+00392 | 3.7M E Laurel | 1964 | Stringer/Multi-beam or Girder | 41 ft | 12,397 | Fair |
| I 90 over Sep S 56th ST W No. I00090440+02531 | 5.6M W Billings | 1961 | Stringer/Multi-beam or Girder | 153 ft | 12,397 | Fair |
| I 90 over Sep S 56th ST W No. I00090440+02532 | 5.6M W Billings | 1961 | Stringer/Multi-beam or Girder | 153 ft | 12,397 | Fair |
| I 90 over Canyon Creek No. I00090442+08261 | 3.1M W Billings | 1959 | Stringer/Multi-beam or Girder | 153 ft | 12,397 | Fair |
| I 90 over Canyon Creek No. I00090442+08262 | 3.1M W Billings | 1959 | Stringer/Multi-beam or Girder | 153 ft | 12,397 | Good |
| US 310 over RR No. P00004052+06201 | 1M S Laurel | 2014 | Stringer/Multi-beam or Girder | 380 ft | 12,394 | Fair |
| US 212 over Yellowstone River No. P00004053+05141 | 1M S Laurel | 1997 | Stringer/Multi-beam or Girder | 513 ft | 12,394 | Good |
| Bench Blvd over Alkali Creek No. U01036002+09701 | Billings-Bench Blvd | 2011 | Stringer/Multi-beam or Girder | 178 ft | 12,314 | Good |
| Old HWY 312 over Five Mile Creek 183 No. L56788004+03001 | 3M NE Billings | 2005 | Stringer/Multi-beam or Girder | 75 ft | 11,260 | Good |
| Old HWY 312 over Bbwa Canal 166 No. L56788005+04001 | 4M NE Billings | 2005 | Culvert | 25 ft | 11,260 | Good |
| Old HWY 312 over Bbwa Canal 167 No. L56788005+08001 | 5M NE Billings | 2005 | Culvert | 21 ft | 11,260 | Fair |
| E Airport RD over 6th Ave N Bypass 21 No. U01014002+05171 | Billings-E Airport RD | 2009 | Stringer/Multi-beam or Girder | 141 ft | 10,544 | Fair |
| Wicks LN over Bbwa Canal No. U01012001+01501 | Billings-Wicks LN | 1988 | Tee Beam | 49 ft | 10,387 | Fair |
| Aronson Ave over Alkali Creek 202 No. M56010000+09001 | Billings-Aronson Ave | 2008 | Stringer/Multi-beam or Girder | 199 ft | 10,114 | Good |
| Aronson Ave over Bbwa Canal 203 No. M56010001+01001 | Billings-Aronson Ave | 2008 | Tee Beam | 55 ft | 10,114 | Fair |
| I 90 over Int Johnson Lane No. I00090455+03081 | 2.5M E Billings | 1967 | Stringer/Multi-beam or Girder | 153 ft | 10,081 | Fair |
| I 90 over Int Johnson Lane No. I00090455+03082 | 2.5M E Billings | 1967 | Stringer/Multi-beam or Girder | 150 ft | 10,081 | Fair |
| Central Ave Ramp over Underpass Avenue No. U01035000+05001 | Billings | 1977 | Stringer/Multi-beam or Girder | 101 ft | 9,943 | Fair |
| Zoo DR over Shiloh Interchange 014 No. L56200000+08001 | Billings-Zoo DR | 2001 | Stringer/Multi-beam or Girder | 446 ft | 9,917 | Fair |
| I 90 over Int W Laurel-Rr No. 000000000001741 | Laurel | 2018 | Stringer/Multi-beam or Girder | 556 ft | 9,599 | Fair |
| I 90 over Int W Laurel-Rr No. 000000201901742 | Laurel | 2019 | Stringer/Multi-beam or Girder | 473 ft | 9,599 | Good |
| I 90 over Int Laurel-P 4-RR No. I00090434+00901 | Laurel | 1964 | Stringer/Multi-beam or Girder | 366 ft | 9,599 | Fair |
| S 27th ST over Int 27th ST I 90 No. P00053000+00001 | Billings-S 27th ST | 1966 | Stringer/Multi-beam or Girder | 221 ft | 9,538 | Fair |
| I 90 over Hogan Slough No. I00090445+04542 | Billings | 1959 | Stringer/Multi-beam or Girder | 82 ft | 9,451 | Fair |
| I 90 over Int W Billings-U 1020 No. I00090445+09641 | Billings | 1964 | Stringer/Multi-beam or Girder | 185 ft | 9,451 | Fair |
| I 90 over Int W Billings-U 1020 No. I00090445+09642 | Billings | 1964 | Stringer/Multi-beam or Girder | 185 ft | 9,451 | Good |
| I 90 over Int W Billings-U 1010 No. I00090446+01581 | Billings | 1994 | Stringer/Multi-beam or Girder | 143 ft | 9,451 | Good |
| I 90 over Int W Billings-U 1010 No. I00090446+01582 | Billings | 1994 | Stringer/Multi-beam or Girder | 143 ft | 9,451 | Good |
| S Billings Blvd over Yellowstone River No. S00416000+03691 | 1M S Billings | 1972 | Stringer/Multi-beam or Girder | 861 ft | 9,226 | Fair |
| Blue Creek RD over Blue Creek No. S00416000+09591 | 2M S Billings | 1972 | Stringer/Multi-beam or Girder | 120 ft | 9,226 | Good |
| 17th ST W over Bbwa Canal No. U01003000+04501 | BILLINGS-17th ST W | 1974 | Tee Beam | 46 ft | 9,172 | Good |
| Montana Ave over U1025-RR No. U01020001+08851 | Billings-Montana Ave | 1960 | Stringer/Multi-beam or Girder | 1,711 ft | 8,576 | Poor |
| Montana Ave over U1024-25-RR No. U01020001+08852 | Billings-Montana Ave | 1960 | Stringer/Multi-beam or Girder | 1,713 ft | 8,576 | Poor |
| I 90 over Int Pinehill-I 94 No. I00090456+05801 | 3.7M E Billings | 1967 | Stringer/Multi-beam or Girder | 283 ft | 8,469 | Fair |
| Hilltop RD over Bbwa Canal No. U01027001+09601 | Billings-Hilltop RD | 1960 | Tee Beam | 42 ft | 8,274 | Fair |
| Hilltop RD over Lake Elmo DR No. U01027002+01201 | Billings-Hilltop RD | 1990 | Stringer/Multi-beam or Girder | 141 ft | 8,274 | Good |
| Broadwater Ave over Bbwa Canal No. U01006001+05001 | Billings-Broadwater Ave | 1984 | Tee Beam | 53 ft | 7,956 | Fair |
| I 90 over Sep Wold Road No. I00090431+03331 | 1.9M W Laurel | 1967 | Stringer/Multi-beam or Girder | 125 ft | 7,580 | Fair |
| I 90 over Sep Wold Road No. I00090431+03332 | 1.9M W Laurel | 1967 | Stringer/Multi-beam or Girder | 125 ft | 7,580 | Fair |
| I 90 over Int Laurel-P 4-RR No. I00090434+00902 | Laurel | 1964 | Stringer/Multi-beam or Girder | 366 ft | 7,545 | Fair |
| Old HWY 312 over Seven Mile Creek 168 No. L56788006+05001 | 5M SW Huntley | 1947 | Stringer/Multi-beam or Girder | 26 ft | 7,544 | Fair |
| Monad RD over Bbwa Canal 151 No. M56010000+00801 | Billings-Monad RD | 1986 | Tee Beam | 50 ft | 7,121 | Good |
| N 27th ST over Bbwa Canal No. P00053002+01251 | Billings-N 27th ST | 1947 | Stringer/Multi-beam or Girder | 38 ft | 6,888 | Fair |
| US 87-ROUNDUP RD over Five Mile Creek No. P00016005+01671 | 2M N Billings | 1977 | Stringer/Multi-beam or Girder | 78 ft | 6,235 | Good |
| US 87-ROUNDUP RD over Bbwa Canal No. P00016005+07311 | 3M N Billings | 1977 | Stringer/Multi-beam or Girder | 63 ft | 6,235 | Good |
| US 310 over RR No. P00004052+06202 | 1M S Laurel | 2015 | Stringer/Multi-beam or Girder | 380 ft | 6,197 | Fair |
| Poly DR over Bbwa Canal 040 No. M56010000+00701 | Billings-Poly DR | 1971 | Tee Beam | 67 ft | 6,121 | Fair |
| N 24th ST over Bbwa Canal 207 No. M56010000+00601 | Billings-N 24th ST W | 1988 | Tee Beam | 60 ft | 5,858 | Fair |
| US 212 over RR No. P00004057+07411 | 2M NE Laurel | 1936 | Stringer/Multi-beam or Girder | 269 ft | 5,606 | Fair |
| 72nd ST W over Canyon Creek 050 No. L56797004+02001 | 5M SW Billings | 1959 | Tee Beam | 120 ft | 5,570 | Good |
| 13th ST W over Bbwa Canal 181 No. M56010000+00301 | BILLINGS-13th ST W | 1970 | Tee Beam | 43 ft | 5,400 | Fair |
| I 94 over Drainage No. I00094015+04531 | 1.2M E Ballentine | 1968 | Culvert | 20 ft | 5,221 | Fair |
| Hesper RD over Bbwa Canal 117 No. M56010000+05001 | 3M SW Billings | 1938 | Stringer/Multi-beam or Girder | 39 ft | 4,906 | Fair |
| Old Hardin RD over Dry Creek 025 No. L56986001+04401 | Lockwood-Old Hardin RD | 1994 | Tee Beam | 32 ft | 4,564 | Good |
| I 94 over Dickie Road No. I00094001+01781 | 3.7M E Billings | 1967 | Stringer/Multi-beam or Girder | 154 ft | 4,471 | Good |
| I 94 over Dickie Road No. I00094001+01782 | 3.7M E Billings | 1967 | Stringer/Multi-beam or Girder | 164 ft | 4,471 | Fair |
| S Frontage RD over Canyon Creek No. S00429001+08501 | W Billings | 1959 | Stringer/Multi-beam or Girder | 156 ft | 4,412 | Fair |
| S 522 (36-31) over Pryor Creek No. S00522000+02451 | 1M S Huntley | 2011 | Stringer/Multi-beam or Girder | 184 ft | 4,332 | Good |
| S 522 (36-30) over Huntley Canal No. S00522000+03681 | 1M S Huntley | 1967 | Stringer/Multi-beam or Girder | 72 ft | 4,332 | Fair |
| I 90 over Old Hardin RD No. I00090457+00541 | 4.3M E Billings | 1969 | Stringer/Multi-beam or Girder | 152 ft | 4,235 | Fair |
| I 90 over Old Hardin RD No. I00090457+00542 | 4.3M E Billings | 1969 | Stringer/Multi-beam or Girder | 152 ft | 4,235 | Fair |
| I 90 over Pryor Creek No. I00090461+09281 | 9.3M E Billings | 1969 | Stringer/Multi-beam or Girder | 256 ft | 4,235 | Fair |
| Old HWY 312 over Twelve Mile Creek 169 No. L56788010+03001 | 2M W Huntley | 1947 | Stringer/Multi-beam or Girder | 101 ft | 4,005 | Fair |
| Old HWY 312 over Yellowstone River 170 No. L56788012+07001 | Huntley | 1949 | Girder and Floorbeam System | 1,022 ft | 4,005 | Poor |
| I 90 over Pryor Creek No. I00090461+09282 | 9.3M E Billings | 1969 | Stringer/Multi-beam or Girder | 256 ft | 3,946 | Fair |
| I 90 over Sep Indian CR Frontage R No. I00090465+07401 | 13M E Billings | 1972 | Slab | 79 ft | 3,946 | Fair |
| I 90 over Sep Indian CR Frontage R No. I00090465+07402 | 13M E Billings | 1972 | Slab | 79 ft | 3,946 | Fair |
| I 90 over Int Arrow Creek No. I00090469+07531 | 16.8M E Billings | 1972 | Stringer/Multi-beam or Girder | 119 ft | 3,946 | Fair |
| I 90 over Int Arrow Creek No. I00090469+07532 | 16.8M E Billings | 1972 | Stringer/Multi-beam or Girder | 119 ft | 3,946 | Fair |
| S Shiloh RD over Canyon Creek No. S00429002+06061 | 2M SW Billings | 1959 | Stringer/Multi-beam or Girder | 153 ft | 3,901 | Fair |
| Virginia LN over Bbwa Canal No. U01015001+07301 | Billings-Virginia LN | 1988 | Slab | 37 ft | 3,881 | Good |
| S Shiloh RD over Sep I 90 No. S00429002+02661 | 2M SW Billings | 1959 | Stringer/Multi-beam or Girder | 457 ft | 3,188 | Poor |
| Frontage Road 683 over Bbwa Canal 032 No. L56683000+06001 | 2M E Laurel | 1965 | Stringer/Multi-beam or Girder | 41 ft | 3,078 | Good |
| Sugar Ave over Sep I 90 011 No. L56395002+04001 | Billings | 1966 | Stringer/Multi-beam or Girder | 306 ft | 3,071 | Good |
| 1st Ave over Big Ditch No. U06901000+09431 | LAUREL-1st Ave | 1968 | Stringer/Multi-beam or Girder | 37 ft | 3,046 | Good |
| I 94 over Int Huntley-S 522 No. I00094006+02071 | Huntley | 1967 | Stringer/Multi-beam or Girder | 140 ft | 3,045 | Fair |
| I 94 over Int Huntley-S 522 No. I00094006+02072 | Huntley | 1967 | Stringer/Multi-beam or Girder | 140 ft | 3,045 | Fair |
| I 94 over Pryor Creek No. I00094006+05321 | 0.6M E Huntley | 1967 | Stringer/Multi-beam or Girder | 312 ft | 3,045 | Fair |
| I 94 over Pryor Creek No. I00094006+05322 | 0.6M E Huntley | 1967 | Stringer/Multi-beam or Girder | 312 ft | 3,045 | Fair |
| I 94 over S 8th RD No. I00094010+01951 | 3.7M E Huntley | 1967 | Slab | 79 ft | 3,045 | Fair |
| I 94 over S 8th RD No. I00094010+01952 | 3.7M E Huntley | 1967 | Slab | 79 ft | 3,045 | Fair |
| S 32nd ST W over Bbwa Canal 115 No. M56010000+03001 | 2M SW Billings | 2004 | Tee Beam | 50 ft | 3,011 | Good |
| S 3 over North Fork Alkali Creek No. P00053011+09351 | 8M NW Billings | 1992 | Culvert | 24 ft | 2,972 | Good |
| Neibauer RD over Bbwa Canal 037 No. L56505000+06001 | 7M NE Laurel | 1977 | Stringer/Multi-beam or Girder | 40 ft | 2,850 | Fair |
| S 56th Street West over Bbwa Canal No. 000000202404808 | Billings-S 56th ST W | 2024 | Culvert | 30 ft | 2,802 | Good |
| S 56th ST W over Canyon Creek 073 No. L56506003+02001 | W Billings-S 56th ST W | 1967 | Tee Beam | 51 ft | 2,802 | Good |
| 56th ST W over Big Ditch 071 No. L56506000+05001 | 3M W Billings | 1964 | Tee Beam | 24 ft | 2,799 | Fair |
| Riveroaks DR over Bbwa Canal 083 No. M56010000+02001 | Billings-Riveroaks DR | 1982 | Tee Beam | 62 ft | 2,785 | Good |
| Old HWY 312 over Custer Coulee 171 No. L56788016+01001 | 2M E Huntley | 1928 | Stringer/Multi-beam or Girder | 27 ft | 2,775 | Fair |
| I 94 over Bighorn River No. I00094052+01481 | 0.6M W Bighorn | 1963 | Girder and Floorbeam System | 580 ft | 2,613 | Fair |
| I 94 over Bighorn River No. I00094052+01482 | 0.6M W Bighorn | 1978 | Stringer/Multi-beam or Girder | 571 ft | 2,613 | Fair |
| I 94 over Int Ballantine No. I00094014+08431 | Ballantine | 1968 | Stringer/Multi-beam or Girder | 129 ft | 2,611 | Fair |
| I 94 over Int Ballantine No. I00094014+08432 | Ballantine | 1968 | Stringer/Multi-beam or Girder | 129 ft | 2,611 | Fair |
| I 94 over Rr-Highline Canal RD No. I00094016+05181 | 1.9M E Ballantine | 1968 | Stringer/Multi-beam or Girder | 480 ft | 2,611 | Fair |
| I 94 over Rr-Highline Canal RD No. I00094016+05182 | 1.9M E Ballantine | 1968 | Stringer/Multi-beam or Girder | 447 ft | 2,611 | Fair |
| I 94 over East I RD No. I00094017+04161 | 2.5M E Ballantine | 1968 | Stringer/Multi-beam or Girder | 154 ft | 2,611 | Fair |
| I 94 over East I RD No. I00094017+04162 | 2.5M E Ballantine | 1968 | Stringer/Multi-beam or Girder | 154 ft | 2,611 | Good |
| I 94 over S 25th RD No. I00094019+05761 | 3.7M W Pompeys Pillar | 1968 | Stringer/Multi-beam or Girder | 129 ft | 2,611 | Fair |
| I 94 over S 25th RD No. I00094019+05762 | 3.7M W Pompeys Pillar | 1968 | Stringer/Multi-beam or Girder | 120 ft | 2,611 | Fair |
| I 94 over Huntley Canal No. I00094020+05301 | 2.5M W Pompeys Pillar | 1968 | Stringer/Multi-beam or Girder | 108 ft | 2,611 | Fair |
| I 94 over Huntley Canal No. I00094020+05302 | 2.5M W Pompeys Pillar | 1968 | Stringer/Multi-beam or Girder | 118 ft | 2,611 | Fair |
| US 87 over West Fork Razor Creek No. P00016024+07541 | 21M S Klein | 1995 | Stringer/Multi-beam or Girder | 102 ft | 2,548 | Good |
| 443 Ramp-I 90 over Shiloh Interchange No. I00090444+04433 | Billings | 2001 | Stringer/Multi-beam or Girder | 329 ft | 2,504 | Good |
| Old US 10 over Big Ditch 051 No. L56787001+02001 | 4M W Laurel | 1932 | Tee Beam | 65 ft | 2,489 | Poor |
| I 94 over Int Custer-S 310 No. I00094047+02181 | Custer | 1973 | Stringer/Multi-beam or Girder | 76 ft | 2,406 | Fair |
| I 94 over Int Custer-S 310 No. I00094047+02182 | Custer | 1973 | Stringer/Multi-beam or Girder | 76 ft | 2,406 | Fair |
| S Frontage RD over Hogan`s Slough No. U01011000+09321 | Billings-S Frontage RD | 1958 | Stringer/Multi-beam or Girder | 84 ft | 2,349 | Fair |
| S 56th ST W over Canyon Creek Ditch 075 No. L56506005+03001 | W Billings-S 56th ST W | 1925 | Stringer/Multi-beam or Girder | 25 ft | 2,295 | Fair |
| I 94 over Cane ST No. I00094025+01201 | 1.9M E Pompeys Pillar | 1976 | Stringer/Multi-beam or Girder | 77 ft | 2,255 | Fair |
| I 94 over Cane ST No. I00094025+01202 | 1.9M E Pompeys Pillar | 1976 | Stringer/Multi-beam or Girder | 77 ft | 2,255 | Fair |
| I 94 over Fly Creek No. I00094025+05971 | 2.5M E Pompeys Pillar | 1976 | Slab | 109 ft | 2,255 | Fair |
| I 94 over Fly Creek No. I00094025+05972 | 2.5M E Pompeys Pillar | 1976 | Slab | 109 ft | 2,255 | Fair |
| I 94 over S 39th RD No. I00094027+03211 | 4.3M E Pompeys Pillar | 1976 | Stringer/Multi-beam or Girder | 71 ft | 2,255 | Fair |
| I 94 over S 39th RD No. I00094027+03212 | 4.3M E Pompeys Pillar | 1976 | Stringer/Multi-beam or Girder | 71 ft | 2,255 | Fair |
| I 94 over Sian Hill Road No. I00094029+02431 | 6.2M E Pompeys Pillar | 1976 | Slab | 79 ft | 2,255 | Fair |
| I 94 over Sian Hill Road No. I00094029+02432 | 6.2M E Pompeys Pillar | 1976 | Slab | 79 ft | 2,255 | Fair |
| I 94 over S 44th RD No. I00094029+07771 | 6.8M E Pompeys Pillar | 1976 | Slab | 61 ft | 2,255 | Fair |
| I 94 over S 44th RD No. I00094029+07772 | 6.8M E Pompeys Pillar | 1976 | Slab | 61 ft | 2,255 | Fair |
| I 94 over Bull Mountain RD No. I00094030+07921 | 8M E Pompeys Pillar | 1976 | Slab | 61 ft | 2,255 | Fair |
| I 94 over Bull Mountain RD No. I00094030+07922 | 8M E Pompeys Pillar | 1976 | Slab | 61 ft | 2,255 | Fair |
| I 94 over Spring Creek Road No. I00094034+02451 | 11.2M E Pompeys Pillar | 1973 | Slab | 61 ft | 2,255 | Fair |
| I 94 over Spring Creek Road No. I00094034+02452 | 11.2M E Pompeys Pillar | 1973 | Slab | 61 ft | 2,255 | Fair |
| I 94 over Int Waco-Co Road No. I00094036+00311 | 11.2M W Custer | 1973 | Stringer/Multi-beam or Girder | 120 ft | 2,255 | Good |
| I 94 over Int Waco-Co Road No. I00094036+00312 | 11.2M W Custer | 1973 | Stringer/Multi-beam or Girder | 120 ft | 2,255 | Fair |
| Shannon RD over Canyon Creek Ditch No. U06903002+06001 | 2M E Laurel | 1984 | Tee Beam | 38 ft | 1,855 | Good |
| Shannon RD over Canyon Creek Ditch 061 No. L56367000+01001 | 3M NE Laurel | 1984 | Tee Beam | 33 ft | 1,811 | Fair |
| Ramp to W I 90 over Shiloh Interchange No. I00090444+04434 | Billings | 2001 | Stringer/Multi-beam or Girder | 329 ft | 1,646 | Good |
| Bitterroot DR over Five Mile Creek 119 No. L56730000+05001 | N Billings Heights | 1999 | Tee Beam | 80 ft | 1,465 | Good |
| Golf Course RD over Big Ditch 029 No. M56069000+00601 | 2M W Laurel | 1968 | Stringer/Multi-beam or Girder | 40 ft | 1,412 | Fair |
| Inner Belt Loop over Alkali Creek 208 No. M56010001+00101 | 3M NW Billings | 2014 | Culvert | 83 ft | 1,178 | Good |
| S 16th RD over Huntley Main Canal 006 No. L56156000+03001 | Ballantine | 1967 | Stringer/Multi-beam or Girder | 61 ft | 952 | Fair |
| Valley DR over Big Ditch 111 No. M56069000+00201 | Laurel-Valley DR | 2008 | Tee Beam | 45 ft | 937 | Good |
| Valley DR over High Ditch 112 No. M56069000+00301 | NW Laurel-Valley DR | 1970 | Tee Beam | 24 ft | 937 | Fair |
| S 48th ST W over Canyon Creek 106 No. L56525003+05001 | 2M SW Billings | 1970 | Stringer/Multi-beam or Girder | 153 ft | 887 | Good |
| S 48th ST W over Bbwa Canal 107 No. L56525003+09001 | 7M NE Laurel | 2003 | Tee Beam | 69 ft | 887 | Good |
| S 48th ST W over Canyon Creek Ditch 085 No. L56525004+01001 | 2M SW Billings | 1981 | Tee Beam | 24 ft | 887 | Fair |
| Danford RD over Canyon Creek Ditch 108 No. L56525005+04001 | 5M SW Billings | 1938 | Stringer/Multi-beam or Girder | 28 ft | 887 | Fair |
| Laurel Airport RD over RR 045 No. 000000000004810 | 3M NE Laurel | 2017 | Tee Beam | 102 ft | 881 | Good |
| S 64th ST W over Canyon Creek 048 No. L56507003+03001 | 8M NE Laurel | 1967 | Channel Beam | 70 ft | 881 | Good |
| Laurel Airport RD over Big Ditch 044 No. L56507008+04001 | 3M NE Laurel | 1950 | Tee Beam | 49 ft | 881 | Fair |
| Buffalo Trail RD over Canyon Creek No. S00532005+09881 | 9M W Billings | 1968 | Stringer/Multi-beam or Girder | 154 ft | 872 | Good |
| Blue Creek RD over Blue Creek No. S00416007+04001 | 7M S Billings | 1982 | Culvert | 30 ft | 801 | Good |
| S 88th ST W over Canyon Creek No. S00532009+06001 | 6M W Billings | 1975 | Tee Beam | 63 ft | 785 | Good |
| King Ave W over Canyon Creek No. S00532010+06381 | 5M W Billings | 1966 | Channel Beam | 62 ft | 785 | Fair |
| Pryor RD over Pryor Creek 009 No. L56300013+00001 | 13M S Billings | 2003 | Tee Beam | 102 ft | 765 | Good |
| Pryor RD over Hamilton Creek 133 No. L56300014+04241 | 9M NE Pryor | 1997 | Tee Beam | 45 ft | 765 | Fair |
| Pryor RD over Pryor Creek 010 No. L56300014+07001 | 15M S Billings | 1979 | Tee Beam | 93 ft | 765 | Fair |
| Pryor RD over 4th of July Creek 013 No. L56300019+08001 | 20M S Billings | 2001 | Culvert | 26 ft | 596 | Good |
| Pryor RD over Pryor Creek 014 No. L56300020+06001 | 20M S Billings | 2001 | Tee Beam | 93 ft | 596 | Fair |
| 27th Ave W over Big Ditch 031 No. L56548002+09001 | 3M W Laurel | 1988 | Tee Beam | 45 ft | 594 | Good |
| Mary ST over Five Mile Creek 118 No. M56010000+01001 | NE Billings-Mary ST | 2007 | Tee Beam | 120 ft | 575 | Good |
| Old US 87 over Pryor Creek 069 No. L56791008+06001 | 8M SE Billings | 1979 | Stringer/Multi-beam or Girder | 101 ft | 564 | Fair |
| Old US 87 over E Fork Pryor Creek 174 No. L56791009+00001 | 9M SE Billings | 1926 | Stringer/Multi-beam or Girder | 55 ft | 564 | Fair |
| Hesper RD over Canyon Creek 114 No. L56526004+01001 | 7M NE Laurel | 1972 | Tee Beam | 117 ft | 522 | Fair |
| Hesper RD over Big Ditch 113 No. L56526004+03001 | 5M NE Laurel | 1938 | Stringer/Multi-beam or Girder | 24 ft | 522 | Fair |
| Alkali Creek Rd. over Alkali Creek No. 000000202104974 | 1M N Billings | 2021 | Tee Beam | 97 ft | 484 | Good |
| Alkali Creek Road over Alkali Creek No. 000000202108037 | 1M N Billings | 2021 | Culvert | 47 ft | 484 | Good |
| Alkali Creek RD over Alkali Creek 034 No. L56726001+07001 | 2M NW Billings | 1989 | Stringer/Multi-beam or Girder | 37 ft | 484 | Fair |
| Alkali Creek RD over Alkali Creek 053 No. L56726004+01001 | 4M NW Billings | 1969 | Channel Beam | 24 ft | 484 | Fair |
| S 568-FLY CR RD over Int Pompeys Pillar-I 94 No. S00568000+00001 | 1M W Pompey`s Pillar | 1968 | Stringer/Multi-beam or Girder | 264 ft | 401 | Fair |
| HWY 312 over RR No. S00568000+00621 | 1M W Pompey`s Pillar | 2004 | Stringer/Multi-beam or Girder | 318 ft | 401 | Fair |
| Byam RD over Clarks Fk YELLOWSTONE024 No. L56303000+08001 | 3M S Laurel | 1997 | Stringer/Multi-beam or Girder | 411 ft | 290 | Good |
| Musselshell Trl RD over Yellowstone River No. S00310000+08501 | 1M N Custer | 1964 | Girder and Floorbeam System | 567 ft | 265 | Fair |
| S 8th RD over Huntley Main Canal No. 000000202004772 | 4M NE Huntley | 2020 | Stringer/Multi-beam or Girder | 41 ft | 165 | Good |
| W M RD over Arrow Creek 099 No. L56053004+01001 | 3M NE Worden | 1975 | Stringer/Multi-beam or Girder | 34 ft | 164 | Fair |
| Custer Frtg RD over Fly Creek 002 No. 000000000004866 | Pompeys Pillar | 2016 | Stringer/Multi-beam or Girder | 138 ft | 147 | Good |
| Custer Frtg RD over Sand Coulee 003 No. L56788029+05001 | 1M E Pompeys Pillar | 1940 | Stringer/Multi-beam or Girder | 58 ft | 147 | Fair |
| Custer Frtg RD over Mill Creek 018 No. L56788031+00001 | 4M E Pompey`s Pillar | 1940 | Stringer/Multi-beam or Girder | 57 ft | 147 | Fair |
| Custer Frtg RD over Bull Mountain Creek 019 No. L56788033+04001 | 5M NE Pompey`s Pillar | 1940 | Stringer/Multi-beam or Girder | 58 ft | 147 | Fair |
| Custer Frtg RD over Rough Coulee 033 No. L56788035+00001 | 6M NE Pompey`s Pillar | 1940 | Stringer/Multi-beam or Girder | 58 ft | 147 | Fair |
| Custer Frtg RD over Spring Creek 035 No. L56788036+05001 | 8M NE Pompey`s Pillar | 1940 | Stringer/Multi-beam or Girder | 58 ft | 147 | Fair |
| Neibauer RD over Big Ditch 038 No. L56505004+01001 | 4M NE Laurel | 1960 | Stringer/Multi-beam or Girder | 28 ft | 138 | Fair |
| Danford RD over Big Ditch 109 No. L56527003+01001 | SW Billings | 1936 | Stringer/Multi-beam or Girder | 31 ft | 125 | Fair |
| Bernhardt RD over Drainage Ditch 191 No. M56069000+00701 | Laurel-Bernhardt RD | 1980 | Tee Beam | 35 ft | 122 | Good |
| Custer Frtg RD over Automatic Creek 036 No. L56788039+03001 | 10M SW Custer | 1951 | Stringer/Multi-beam or Girder | 109 ft | 119 | Fair |
| Shepherd RD over Razor Creek 090 No. 000000000004879 | 3M N Shepherd | 2017 | Tee Beam | 63 ft | 100 | Good |
| W Beartooth DR over Big Ditch 161 No. 000000000004999 | NW Laurel-W Beartooth DR | 2018 | Tee Beam | 46 ft | 100 | Good |
| Pheasant Brook Dri over Big Ditch No. 000000000007088 | 3M NE Laurel | 2003 | Tee Beam | 34 ft | 100 | Good |
| Pheasant Brook DR over Big Ditch No. 000000000007089 | 3M NE Laurel | 2003 | Tee Beam | 38 ft | 100 | Good |
| Sportsman Park RD over Drainage No. 000000201904827 | 5M SW Laurel | 2019 | Stringer/Multi-beam or Girder | 67 ft | 100 | Good |
| Bbp over Yellowstone River No. 000000201908003 | 1M NW Lockwood | 2022 | Stringer/Multi-beam or Girder | 1,859 ft | 100 | Good |
Structure types in Yellowstone County
| Stringer/Multi-beam or Girder | 149 | 51.4% |
| Tee Beam | 99 | 34.1% |
| Slab | 19 | 6.6% |
| Culvert | 13 | 4.5% |
| Channel Beam | 6 | 2.1% |
| Girder and Floorbeam System | 3 | 1.0% |
| Truss - Thru | 1 | 0.3% |
Other counties in Montana
- Beaverhead County 227
- Big Horn County 133
- Blaine County 102
- Broadwater County 37
- Carbon County 81
- Carter County 42
- Cascade County 185
- Chouteau County 43
- Custer County 71
- Daniels County 33
- Dawson County 109
- Deer Lodge County 67
- Fallon County 38
- Fergus County 158
- Flathead County 204
- Gallatin County 212
- Garfield County 26
- Glacier County 71
- Golden Valley County 17
- Granite County 73
- Hill County 46
- Jefferson County 136
- Judith Basin County 45
- Lake County 116
- Lewis and Clark County 204
- Liberty County 10
- Lincoln County 191
- Madison County 98
- McCone County 43
- Meagher County 53
- Mineral County 153
- Missoula County 206
- Musselshell County 28
- Park County 126
- Petroleum County 26
- Phillips County 101
- Pondera County 96
- Powder River County 23
- Powell County 113
- Prairie County 46
- Ravalli County 150
- Richland County 97
- Roosevelt County 57
- Rosebud County 112
- Sanders County 120
- Sheridan County 66
- Silver Bow County 70
- Stillwater County 92
- Sweet Grass County 94
- Teton County 82
- Toole County 35
- Treasure County 26
- Valley County 103
- Wheatland County 27
- Wibaux County 25