Fergus County, Montana bridges
Fergus County has 158 bridges and culverts in the National Bridge Inventory, the oldest built in 1908. 9 (6%) are rated poor. The most common type is stringer/multi-beam or girder (72%).
- Bridges
- 158
- Good
- 33%
- Fair
- 61%
- Poor
- 6%
- 9 bridges
- Average age
- 46.5 yrs
- Posted or closed
- 38
Map of bridges in Fergus County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Fergus County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good33%(52)
Fair61%(97)
Poor6%(9)
When they were built
Busiest
- US 87-E Main ST over Mill DitchFair8,747 vehicles/day
- US 87-W Main ST over Big Spring CreekFair5,357 vehicles/day
- US 191-1st Ave N over Big Spring CreekFair5,189 vehicles/day
- US 87 over Boyd CreekFair2,831 vehicles/day
- US 191-KENDALL RD over Big Spring CreekFair2,663 vehicles/day
Longest
- Poor
- S 80 over Arrow CreekFair250 ft
- Fair
- Good
- P 81 over Judith RiverGood207 ft
Oldest
- Poor Farm Loop over Big Spring CreekFairBuilt 1908
- W Brassey ST over Big Spring CreekFairBuilt 1920
- E Boulevard ST over Big Spring CreekFairBuilt 1920
- US 87-E Main ST over Mill DitchFairBuilt 1922
- Jenni RD over Beaver Creek 030FairBuilt 1929
All bridges in Fergus County
Busiest first · showing 1–158 of 158| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| US 87-E Main ST over Mill Ditch No. P00057082+02191 | Lewistown-E Main ST | 1922 | Tee Beam | 25 ft | 8,747 | Fair |
| US 87-W Main ST over Big Spring Creek No. P00057081+09861 | Lewistown-W Main ST | 1962 | Tee Beam | 30 ft | 5,357 | Fair |
| US 191-1st Ave N over Big Spring Creek No. P00043000+00851 | LEWISTOWN-1st Ave N | 1960 | Slab | 34 ft | 5,189 | Fair |
| US 87 over Boyd Creek No. P00057084+02521 | 1M E Lewistown | 1942 | Stringer/Multi-beam or Girder | 57 ft | 2,831 | Fair |
| US 191-KENDALL RD over Big Spring Creek No. P00043000+06901 | Lewistown-Kendall RD | 1976 | Stringer/Multi-beam or Girder | 40 ft | 2,663 | Fair |
| US 87 over Beaver Creek No. P00057074+01391 | 7M SW Lewistown | 2009 | Stringer/Multi-beam or Girder | 129 ft | 2,589 | Good |
| US 87 over Cottonwood Creek No. P00057075+05591 | 5M SW Lewistown | 2009 | Stringer/Multi-beam or Girder | 132 ft | 2,589 | Fair |
| W Brassey ST over Big Spring Creek No. U07108000+01501 | Lewistown-W Brassey ST | 1920 | Slab | 26 ft | 2,412 | Fair |
| US 191 over Dawkins Branch No. 000000202108042 | 3M SW Moore | 2021 | Culvert | 20 ft | 2,328 | Good |
| US 87 over Rock Creek No. 000000202105974 | 2M NE Moore | 2021 | Stringer/Multi-beam or Girder | 64 ft | 2,319 | Good |
| US 87 over Drainage No. 000000202108041 | 7.125M E Hobson | 2021 | Culvert | 20 ft | 2,319 | Good |
| US 87 over Little Rock Cr-Stockpass No. P00057071+09321 | 4M NE Moore | 2009 | Culvert | 22 ft | 2,319 | Good |
| US 191 over Ross Fork Creek No. P00063020+07951 | 2M N Judith Gap | 1990 | Culvert | 20 ft | 2,250 | Fair |
| US 191 over Ross Fork Creek No. P00063021+01891 | 2M S Garneill | 1990 | Culvert | 20 ft | 2,250 | Good |
| Upper Spring CR RD over Mill Ditch No. S00238000+00271 | Lewistown | 1958 | Slab | 49 ft | 1,955 | Fair |
| SW Ash ST over Big Spring Creek No. U07110000+03101 | Lewistown-Sw Ash ST | 1962 | Slab | 52 ft | 1,394 | Fair |
| US 87 over Boyd Creek No. P00057086+02481 | 3M E Lewistown | 1942 | Stringer/Multi-beam or Girder | 57 ft | 1,295 | Fair |
| US 87 over Drainage No. P00057095+05731 | 12M E Lewistown | 1930 | Stringer/Multi-beam or Girder | 38 ft | 1,148 | Fair |
| US 87 over Drainage No. P00057100+08861 | 13M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 57 ft | 1,148 | Fair |
| US 87 over Drainage No. P00057103+08521 | 10M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 26 ft | 1,148 | Fair |
| US 87 over N Fork Mcdonald Creek No. P00057105+03871 | 8M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 58 ft | 1,067 | Fair |
| US 87 over Drainage No. P00057106+07091 | 7M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 38 ft | 1,067 | Fair |
| US 87 over Drainage No. P00057107+04661 | 6M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 58 ft | 1,067 | Fair |
| US 87 over Irrigation Reservoir No. P00057107+08301 | 6M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 101 ft | 1,067 | Fair |
| US 87 over Drainage No. P00057109+04311 | 4M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 58 ft | 1,067 | Fair |
| US 87 over Drainage No. P00057110+05841 | 3M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 58 ft | 1,067 | Poor |
| US 87 over Drainage No. P00057111+00731 | 2M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 26 ft | 1,067 | Fair |
| US 87 over Drainage No. P00057111+07931 | 2M NW Grass Range | 1939 | Stringer/Multi-beam or Girder | 39 ft | 1,067 | Fair |
| US 87 over S Fork Mcdonald Creek No. P00057112+05571 | 1M N Grass Range | 1939 | Stringer/Multi-beam or Girder | 101 ft | 1,067 | Fair |
| US 87 over Elk Creek No. P00061038+04561 | 5M SE Grass Range | 1952 | Stringer/Multi-beam or Girder | 57 ft | 930 | Fair |
| US 191 over Warm Springs Creek No. P00043010+00561 | 5M SW Hilger | 2011 | Slab | 92 ft | 851 | Fair |
| E Boulevard ST over Big Spring Creek No. U07104001+00801 | Lewistown-E Boulevard ST | 1920 | Culvert | 20 ft | 675 | Fair |
| US 191 over Armells Creek No. P00061086+04811 | 27M NE Roy | 1963 | Stringer/Multi-beam or Girder | 173 ft | 655 | Fair |
| US 191 over Missouri River No. P00061088+00671 | 29M NE Roy | 1959 | Girder and Floorbeam System | 698 ft | 655 | Poor |
| US 191 over Box Elder CR No. P00061067+01311 | 8M NE Roy | 2002 | Slab | 73 ft | 644 | Good |
| S 200 over Mcdonald Creek No. P00057117+01731 | 4M NE Grass Range | 1967 | Stringer/Multi-beam or Girder | 92 ft | 553 | Good |
| S 19 over Mcdonald Creek No. P00061045+08411 | 2M N Grass Range | 1962 | Stringer/Multi-beam or Girder | 92 ft | 483 | Good |
| S 19 over Chippewa Creek No. P00061046+09561 | 3M N Grass Range | 1962 | Stringer/Multi-beam or Girder | 82 ft | 483 | Good |
| S 19 over Fords Creek No. P00061050+07671 | 7M N Grass Range | 1962 | Stringer/Multi-beam or Girder | 92 ft | 483 | Good |
| S 19 over Little Box Elder Creek No. P00061053+00531 | 9M N Grass Range | 1962 | Stringer/Multi-beam or Girder | 82 ft | 483 | Good |
| Winifred HWY over Dog Creek No. S00236004+02001 | 4M N Hilger | 1953 | Stringer/Multi-beam or Girder | 38 ft | 477 | Fair |
| Winifred HWY over Drainage No. S00236006+03001 | 3M S Christina | 1954 | Stringer/Multi-beam or Girder | 38 ft | 477 | Fair |
| Winifred HWY over Dog Creek No. S00236009+05001 | Christina | 1954 | Stringer/Multi-beam or Girder | 38 ft | 477 | Fair |
| S 19 over South Fork Bear Creek No. P00061056+03731 | 12M N Grass Range | 1960 | Stringer/Multi-beam or Girder | 92 ft | 465 | Good |
| S 19 over North Fork Bear Creek No. P00061062+00691 | 11M SE Roy | 1960 | Stringer/Multi-beam or Girder | 82 ft | 465 | Good |
| 6th Ave S over Big Spring Creek 133 No. M14071000+00201 | LEWISTOWN-6th Ave S | 1962 | Slab | 51 ft | 437 | Poor |
| Winifred HWY over Dog Creek No. S00236010+01001 | Christina | 1954 | Stringer/Multi-beam or Girder | 58 ft | 384 | Fair |
| US 191 over Box Elder Creek No. P00043037+09021 | 2M E Roy | 1942 | Stringer/Multi-beam or Girder | 58 ft | 382 | Poor |
| US 191 over Box Elder Creek No. P00043038+05341 | 2M E Roy | 1942 | Stringer/Multi-beam or Girder | 58 ft | 382 | Fair |
| P-81 over Warm Spring Creek No. 000000202006213 | 13M SW Hilger | 2020 | Stringer/Multi-beam or Girder | 102 ft | 377 | Good |
| S 81 over Warm Spring Creek No. P00081033+06051 | 12M SW Hilger | 2008 | Stringer/Multi-beam or Girder | 158 ft | 377 | Good |
| S 81 over Warm Spring Creek No. P00081039+02391 | 7M SW Hilger | 1949 | Stringer/Multi-beam or Girder | 38 ft | 377 | Fair |
| S 81 over Warm Spring Creek No. P00081042+01451 | 5M SW Hilger | 1969 | Stringer/Multi-beam or Girder | 40 ft | 377 | Fair |
| S-81 over Wolf Creek No. 000000202206208 | Denton | 2022 | Box Beam or Girders - Multiple | 116 ft | 371 | Good |
| S 81 over Coffee Creek No. P00081006+00921 | Coffee Creek | 1952 | Stringer/Multi-beam or Girder | 38 ft | 347 | Fair |
| Fish Hatchery RD over E Fork Big Spring Creek No. S00466000+02851 | 4M SE Lewistown | 1966 | Stringer/Multi-beam or Girder | 76 ft | 328 | Fair |
| Fish Hatchery RD over Big Spring Creek No. S00466001+04341 | 5M SE Lewistown | 1996 | Stringer/Multi-beam or Girder | 80 ft | 328 | Good |
| P 81 over Judith River No. 000000202006211 | 11M SE Denton | 2020 | Stringer/Multi-beam or Girder | 207 ft | 265 | Good |
| S 81 over Dry Wolf Creek No. P00081019+09951 | 6M SE Denton | 1949 | Stringer/Multi-beam or Girder | 57 ft | 265 | Fair |
| S 238-E Fork RD over E Fork Big Spring Creek No. S00238010+00001 | 8M SE Lewistown | 1958 | Slab | 30 ft | 217 | Fair |
| Hanover RD over Big Spring Creek No. S00426020+04321 | 8M NW Lewistown | 1966 | Stringer/Multi-beam or Girder | 163 ft | 177 | Fair |
| S 80 over Arrow Creek No. P00080046+01121 | 17M S Geraldine | 1949 | Stringer/Multi-beam or Girder | 250 ft | 171 | Fair |
| Stafford Ferry RD over Cutbank Creek 011 No. 000000000002749 | 5M N Winifred | 2018 | Culvert | 36 ft | 168 | Good |
| Stafford Ferry RD over Taffy Creek No. 000000202002750 | 7M N Winifred | 2020 | Stringer/Multi-beam or Girder | 80 ft | 168 | Good |
| Dy Trail over Dog Creek 110 No. L14101000+01001 | E Winifred | 1962 | Slab | 50 ft | 168 | Fair |
| S 547 over Wolf Creek No. S00547000+07851 | 1M E Denton | 1977 | Stringer/Multi-beam or Girder | 85 ft | 137 | Good |
| Joyland RD over Big Spring Creek No. S00237000+07801 | 2M NW Lewistown | 1999 | Stringer/Multi-beam or Girder | 89 ft | 123 | Good |
| Forest Grove RD over S Fork Mcdonald CR No. 000000202102773 | 6M SW Grassrange | 2021 | Stringer/Multi-beam or Girder | 65 ft | 120 | Good |
| Forest Grove RD over S Fork Mcdonald Creek No. 000000202102774 | 5M SW Grassrange | 2021 | Stringer/Multi-beam or Girder | 60 ft | 120 | Good |
| Forest Grove RD over S Fork Mcdonald CR 046 No. L14202018+00001 | 6M SW Grassrange | 1986 | Stringer/Multi-beam or Girder | 32 ft | 120 | Fair |
| Forest Grove RD over S Fork Mcdonald CR 070 No. L14202021+03001 | 4M SW Grassrange | 1982 | Stringer/Multi-beam or Girder | 41 ft | 120 | Fair |
| Forest Grove RD over S Fork Mcdonald CR 071 No. L14202021+06001 | 4M SW Grassrange | 1970 | Stringer/Multi-beam or Girder | 33 ft | 120 | Fair |
| Forest Grove RD over S Fork Mcdonald CR 072 No. L14202025+03001 | Grassrange | 2011 | Stringer/Multi-beam or Girder | 80 ft | 120 | Good |
| Hanover RD over Judith River No. S00426015+00191 | 5M NE Kolin | 1970 | Stringer/Multi-beam or Girder | 228 ft | 114 | Fair |
| Horse Ranch RD over Armells Creek 117 No. 000000000002762 | 8M NW Fergus | 2017 | Tee Beam | 76 ft | 100 | Good |
| Roundhouse RD over Big Spring Creek 135 No. 000000000002828 | 2M S Lewistown | 2016 | Tee Beam | 54 ft | 100 | Good |
| Andrews Road over Dog Creek No. 000000201902766 | 2M N Christina | 2019 | Stringer/Multi-beam or Girder | 60 ft | 100 | Good |
| Pioneer Road over Coyote Creek No. 000000201902823 | 4 Miles Southwest of Dent | 1979 | Stringer/Multi-beam or Girder | 33 ft | 100 | Fair |
| Christina ST W over Dog Creek No. 000000202002742 | Christina | 2020 | Stringer/Multi-beam or Girder | 60 ft | 100 | Good |
| Allen Road over Coffee Creek No. 000000202102739 | 9M NE Denton | 2021 | Stringer/Multi-beam or Girder | 51 ft | 100 | Good |
| Arntzen LN over Dog Creek No. 000000202102767 | 2M SE Christina | 2020 | Stringer/Multi-beam or Girder | 60 ft | 100 | Fair |
| County Road over Beaver Creek 143 No. 000000202102803 | 1M W Glengarry | 2012 | Stringer/Multi-beam or Girder | 40 ft | 100 | Good |
| Farren Hill Road over Middle Fork Beaver CR No. 000000202108044 | 6.1M S Glengarry | 2021 | Stringer/Multi-beam or Girder | 40 ft | 100 | Good |
| County Road 144 over Dog Creek No. 000000202202768 | 5M S Winifred | 2022 | Stringer/Multi-beam or Girder | 40 ft | 100 | Good |
| Bain Street over Wolf Creek No. 000000202204910 | Denton-Bain ST | 2022 | Stringer/Multi-beam or Girder | 59 ft | 100 | Good |
| Armells Road over Armells Creek No. 000000202208048 | 11M NE Hilger | 2022 | Truss - Deck | 40 ft | 100 | Fair |
| Matovich RD over Mcdonald Creek No. 000000202307099 | 5M NE Grass Range | 2023 | Stringer/Multi-beam or Girder | 62 ft | 100 | Good |
| Poor Farm Loop over Big Spring Creek No. 000000202308073 | 1M NW Lewistown | 1908 | Truss - Thru | 50 ft | 100 | Fair |
| Butcher Road over Dog Creek No. 000000202402755 | 4M S Winifred | 2024 | Stringer/Multi-beam or Girder | 78 ft | 100 | Good |
| N Denton RD over Coffee Creek 081 No. L14003005+00001 | 6M N Denton | 1979 | Stringer/Multi-beam or Girder | 40 ft | 100 | Fair |
| Sandrock RD over Warm Springs Creek 077 No. L14005001+04001 | 4M NE Danvers | 2010 | Stringer/Multi-beam or Girder | 80 ft | 100 | Good |
| 72 Bench RD over Warm Springs Creek 078 No. L14008003+03001 | 5M N Danvers | 1980 | Stringer/Multi-beam or Girder | 50 ft | 100 | Fair |
| Alton Cutoff over Wolf Creek 091 No. L14009000+07001 | 4M E Denton | 1979 | Stringer/Multi-beam or Girder | 50 ft | 100 | Fair |
| Salt Creek RD over Dog Creek 054 No. L14010000+02001 | N Suffolk | 1962 | Slab | 26 ft | 100 | Fair |
| 3 Mile RD over Salt Creek 055 No. L14010005+04001 | 6M W Suffolk | 1962 | Slab | 51 ft | 100 | Fair |
| Bally Dome RD over Wolf Creek 089 No. L14012004+01001 | 7M E Denton | 1979 | Stringer/Multi-beam or Girder | 76 ft | 100 | Fair |
| Donaldson RD over Dry Wolf Creek 090 No. L14016002+01001 | 7M E Denton | 1982 | Stringer/Multi-beam or Girder | 32 ft | 100 | Fair |
| Salt Creek RD over Salt Creek 053 No. L14021000+01001 | 7M NW Suffolk | 1984 | Stringer/Multi-beam or Girder | 29 ft | 100 | Fair |
| Olies RD over Wolf Creek 088 No. L14028002+02001 | 6M E Denton | 1983 | Stringer/Multi-beam or Girder | 51 ft | 100 | Fair |
| Washboard RD over Dog Creek 101 No. L14043000+02001 | W Suffolk | 1983 | Stringer/Multi-beam or Girder | 32 ft | 100 | Fair |
| Erle LN over Dog Creek 102 No. L14058000+01001 | Suffolk | 1981 | Stringer/Multi-beam or Girder | 31 ft | 100 | Fair |
| Mabee RD over Blood Creek 040 No. L14103002+08001 | 3M N Roy | 2013 | Culvert | 22 ft | 100 | Good |
| Cimrhakl RD over Sacagawea Riv 114 No. L14104007+01001 | 8M NE Roy | 1978 | Stringer/Multi-beam or Girder | 47 ft | 100 | Fair |
| Wilder Trail over Sacagawea Riv 113 No. L14110001+01001 | 11M NE Roy | 2015 | Stringer/Multi-beam or Girder | 51 ft | 100 | Fair |
| Horse Ranch RD over Box Elder Creek 120 No. L14112000+02001 | NW Fergus | 1962 | Slab | 30 ft | 100 | Good |
| Rose Creek RD over Rose Creek 108 No. L14113003+02001 | 3M E Winifred | 1980 | Stringer/Multi-beam or Girder | 31 ft | 100 | Fair |
| County Road 116 over Armells Creek 115 No. L14116000+06001 | 10M NE Hilger | 1977 | Stringer/Multi-beam or Girder | 45 ft | 100 | Fair |
| Valentine RD over Box Elder Creek 130 No. L14201001+02001 | 8M E Roy | 1983 | Stringer/Multi-beam or Girder | 51 ft | 100 | Fair |
| Valentine RD over Blood Creek 131 No. L14201013+09001 | 4M NW Valentine | 1980 | Stringer/Multi-beam or Girder | 40 ft | 100 | Fair |
| Valentine RD over Blood Creek 132 No. L14201019+07001 | 25M N Winnett | 1986 | Stringer/Multi-beam or Girder | 33 ft | 100 | Fair |
| Surenuff RD over S Fork Mcdonald CR 002 No. L14204000+02001 | Forest Grove | 1982 | Stringer/Multi-beam or Girder | 33 ft | 100 | Fair |
| Tyler Cutoff over Mcdonald Creek 125 No. L14207000+02001 | 1M S Grassrange | 1975 | Stringer/Multi-beam or Girder | 57 ft | 100 | Fair |
| Grinde RD over Warm Springs Creek 009 No. L14208009+00001 | 4M SW Hilger | 1986 | Stringer/Multi-beam or Girder | 32 ft | 100 | Fair |
| Upper Chippewa RD over Chippewa Creek 021 No. L14209003+05001 | 8M NW Grassrange | 1962 | Culvert | 21 ft | 100 | Fair |
| Upper Chippewa RD over Chippewa Creek 004 No. L14209006+02001 | 5M NW Grassrange | 1980 | Stringer/Multi-beam or Girder | 30 ft | 100 | Fair |
| Fairview RD over S Fork Mcdonald CR 123 No. L14219000+01001 | 3M E Forestgrove | 1962 | Slab | 30 ft | 100 | Poor |
| County Road 220 over Fords Creek 006 No. L14220006+09001 | 14M NW Grassrange | 1981 | Stringer/Multi-beam or Girder | 32 ft | 100 | Fair |
| Yellow Water RD over Elk Creek 136 No. L14230000+00901 | 7 M SE Grassrange | 1974 | Stringer/Multi-beam or Girder | 29 ft | 100 | Fair |
| Fort Maginnis RD over Fords Creek 141 No. L14231001+00401 | 12M N Cheadle | 2012 | Stringer/Multi-beam or Girder | 63 ft | 100 | Good |
| Upper Elk CR RD over Elk Creek 126 No. L14236000+02001 | 6M S Grassrange | 1982 | Stringer/Multi-beam or Girder | 28 ft | 100 | Fair |
| S Fork RD over Flatwillow Creek 124 No. L14240000+03001 | 14M SE Forestgrove | 1986 | Stringer/Multi-beam or Girder | 32 ft | 100 | Fair |
| Graves RD over Flatwillow Creek 001 No. L14247000+02001 | 20M S Grassrange | 1988 | Stringer/Multi-beam or Girder | 33 ft | 100 | Fair |
| Tognetti RD over Ross Fork 038 No. L14303007+00001 | 5M NW Moore | 1995 | Slab | 79 ft | 100 | Fair |
| Tognetti RD over Judith River 037 No. L14303007+07001 | 6M NW Moore | 1995 | Stringer/Multi-beam or Girder | 98 ft | 100 | Good |
| Crabtree RD over Dry Wolf Creek 092 No. L14316002+09001 | 5M SE Denton | 1962 | Slab | 40 ft | 100 | Fair |
| Cottonwood Cutoff over Cottonwood Creek 025 No. L14318002+04001 | 6M SW Lewistown | 2012 | Tee Beam | 101 ft | 100 | Good |
| Seright RD over Rock Creek 045 No. L14330003+01001 | 3M E Moore | 1962 | Slab | 25 ft | 100 | Fair |
| Single Pine RD over Cottonwood Creek 028 No. L14334000+01001 | 7M SW Lewistown | 1989 | Stringer/Multi-beam or Girder | 38 ft | 100 | Fair |
| Scott Crossing over Big Spring Creek 033 No. L14338001+07001 | 5M NW Lewistown | 2009 | Stringer/Multi-beam or Girder | 80 ft | 100 | Good |
| Jenni RD over Beaver Creek 030 No. L14339001+00001 | 7M W Lewistown | 1929 | Stringer/Multi-beam or Girder | 62 ft | 100 | Fair |
| Stone Barn LN over Rock Creek 142 No. L14359000+01001 | 10M S Moore | 2012 | Stringer/Multi-beam or Girder | 41 ft | 100 | Good |
| Timberline RD over Big Spring Creek 134 No. L14371000+01001 | 4M SE Lewistown | 2012 | Stringer/Multi-beam or Girder | 57 ft | 100 | Good |
| Pacer Coulee RD over Dry Wolf Creek 093 No. L14383000+01001 | 4M SE Denton | 1990 | Stringer/Multi-beam or Girder | 32 ft | 100 | Fair |
| Cunningham RD over Dry Wolf Creek 094 No. L14438000+06001 | 6M S Denton | 1982 | Stringer/Multi-beam or Girder | 33 ft | 100 | Fair |
| Miller Street over Mill Ditch 041 No. M14071000+00101 | Lewistown-Miller ST | 1973 | Stringer/Multi-beam or Girder | 35 ft | 100 | Fair |
| Pine Street over Big Spring Creek 058 No. M14071000+00301 | Lewistown-Pine ST | 1962 | Slab | 25 ft | 100 | Fair |
| Water Street over Big Spring Creek 059 No. M14071000+00401 | Lewistown-Water ST | 1930 | Slab | 26 ft | 100 | Fair |
| 2nd Avenue over Big Spring Creek 060 No. M14071000+00501 | LEWISTOWN-2nd Ave | 1930 | Mixed Types | 26 ft | 100 | Fair |
| N Dawes Street over Big Spring Creek 061 No. M14071000+00601 | Lewistown-N Dawes ST | 1940 | Slab | 28 ft | 100 | Poor |
| W Broadway Street over Big Spring Creek 062 No. M14071000+00701 | Lewistown-W Broadway ST | 1940 | Tee Beam | 32 ft | 100 | Poor |
| Third Avenue S over Little Casino Creek 138 No. M14071000+00801 | LEWISTOWN-3rd Ave S | 2006 | Stringer/Multi-beam or Girder | 28 ft | 100 | Poor |
| Lower RD over Coyote Creek 085 No. L14310000+07001 | 1M SW Denton | 1977 | Stringer/Multi-beam or Girder | 31 ft | 73 | Fair |
| Lower RD over Wolf Creek 086 No. L14310004+08001 | 5M SW Denton | 1962 | Slab | 31 ft | 73 | Fair |
| NFSR #275 over Rock Creek No. 011504000000054 | 5 MI North of Crystal Lk | 1954 | Stringer/Multi-beam or Girder | 29 ft | 50 | Fair |
| NFSR #275 over Rock Creek No. 011504000000055 | 3 Mi. N. of Crystal Lake | 1938 | Stringer/Multi-beam or Girder | 26 ft | 50 | Fair |
| Cottonwood CR RD over Cottonwood Creek 027 No. L14304005+04001 | 7M SW Lewistown | 2012 | Tee Beam | 121 ft | 45 | Good |
| Cottonwood CR RD over Cottonwood Creek 140 No. L14304007+05001 | 9M SW Lewistown | 2013 | Tee Beam | 65 ft | 45 | Good |
| U Bet RD over Ross Fork Creek 026 No. L14398000+01001 | W Garneill | 1987 | Stringer/Multi-beam or Girder | 32 ft | 36 | Fair |
| Glengary RD over Cottonwood Creek 022 No. L14301000+09001 | 1M N Glengarry | 2013 | Tee Beam | 73 ft | 31 | Good |
| Carroll Trail over Beaver Creek 138 No. L14301007+04001 | 5M S Glengarry | 2013 | Stringer/Multi-beam or Girder | 52 ft | 31 | Good |
| Lwr Cottonwood CR over Cottonwood Creek 034 No. L14312007+07001 | 8M W Lewistown | 2009 | Tee Beam | 102 ft | 26 | Fair |
| FWS 210 over Sand Creek No. 000061520-01680 | 12.4 Miles East of US HWY | 2023 | Stringer/Multi-beam or Girder | 56 ft | 25 | Good |
| S Coffee CR RD over Wolf Creek 076 No. L14342000+09001 | 4M S Coffee Creek | 1979 | Stringer/Multi-beam or Girder | 41 ft | 14 | Fair |
| Judith River RD over Judith River 012 No. L14001009+05001 | 10M W Winifred | 2001 | Stringer/Multi-beam or Girder | 226 ft | 13 | Good |
| Bear Springs RD over Wolf Creek 013 No. L14001028+09001 | 11M NE Denton | 1980 | Tee Beam | 67 ft | 13 | Fair |
| Hitchcock RD over Dry Wolf Creek 095 No. L14346001+07001 | 5M SE Denton | 1980 | Stringer/Multi-beam or Girder | 31 ft | 4 | Fair |
| Hitchcock RD over Dry Wolf Creek 096 No. L14346002+05001 | 6M SE Denton | 1980 | Stringer/Multi-beam or Girder | 41 ft | 4 | Fair |
| Road 220 over Carroll Coulee No. 000061520-00038 | Sect 22 T21N R26E | 1963 | Stringer/Multi-beam or Girder | 40 ft | 1 | Poor |
Structure types in Fergus County
| Stringer/Multi-beam or Girder | 113 | 71.5% |
| Slab | 20 | 12.7% |
| Tee Beam | 11 | 7.0% |
| Culvert | 9 | 5.7% |
| Truss - Thru | 1 | 0.6% |
| Mixed Types | 1 | 0.6% |
| Girder and Floorbeam System | 1 | 0.6% |
| Box Beam or Girders - Multiple | 1 | 0.6% |
| Truss - Deck | 1 | 0.6% |
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