Fergus County, MT

155 public highway bridges

Fergus County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Fergus County, Montana contains 155 public highway bridges. Roughly 30.3% are rated “Good,” 63.2% “Fair,” and 6.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

155
Total Bridges
30.3%
Good
63.2%
Fair
6.5%
Poor Condition

Condition Distribution

Good
30.3% (47)
Fair
63.2% (98)
Poor
6.5% (10)

All Bridges (155)

COUNTY ROAD

Good

Over: BEAVER CREEK 143

1M W GLENGARRY, Fergus, MT

Built 2012 Load: 18.1 t ADT: 100

MATOVICH RD

Good

Over: MCDONALD CREEK

5M NE GRASS RANGE, Fergus, MT

Built 2023 Load: 19.4 t ADT: 100

ANDREWS ROAD

Good

Over: DOG CREEK

2M N CHRISTINA, Fergus, MT

Built 2019 Load: 20.9 t ADT: 100

GLENGARY RD

Good

Over: COTTONWOOD CREEK 022

1M N GLENGARRY, Fergus, MT

Built 2013 Load: 23.3 t ADT: 31

COUNTY ROAD 144

Good

Over: DOG CREEK

5M S WINIFRED, Fergus, MT

Built 2022 Load: 23.6 t ADT: 100

JUDITH RIVER RD

Good

Over: JUDITH RIVER 012

10M W WINIFRED, Fergus, MT

Built 2001 Load: 23.6 t ADT: 13

US 87

Good

Over: DRAINAGE

7.125M E HOBSON, Fergus, MT

Built 2021 Load: 27.2 t ADT: 2,202

US 191

Good

Over: BOX ELDER CR

8M NE ROY, Fergus, MT

Built 2002 Load: 28.1 t ADT: 624

S 81

Good

Over: WARM SPRING CREEK

12M SW HILGER, Fergus, MT

Built 2008 Load: 28.1 t ADT: 375

STAFFORD FERRY RD

Good

Over: TAFFY CREEK

7M N WINIFRED, Fergus, MT

Built 2020 Load: 29.0 t ADT: 167

S 547

Good

Over: WOLF CREEK

1M E DENTON, Fergus, MT

Built 1977 Load: 29.0 t ADT: 136

COTTONWOOD CR RD

Good

Over: COTTONWOOD CREEK 140

9M SW LEWISTOWN, Fergus, MT

Built 2013 Load: 29.5 t ADT: 45

COTTONWOOD CUTOFF

Good

Over: COTTONWOOD CREEK 025

6M SW LEWISTOWN, Fergus, MT

Built 2012 Load: 29.5 t ADT: 100

FOREST GROVE RD

Good

Over: S FORK MCDONALD CR

6M SW GRASSRANGE, Fergus, MT

Built 2021 Load: 29.9 t ADT: 146

JOYLAND RD

Good

Over: BIG SPRING CREEK

2M NW LEWISTOWN, Fergus, MT

Built 1999 Load: 29.9 t ADT: 66

FISH HATCHERY RD

Good

Over: BIG SPRING CREEK

5M SE LEWISTOWN, Fergus, MT

Built 1996 Load: 29.9 t ADT: 161

FORT MAGINNIS RD

Good

Over: FORDS CREEK 141

12M N CHEADLE, Fergus, MT

Built 2012 Load: 30.1 t ADT: 100

SCOTT CROSSING

Good

Over: BIG SPRING CREEK 033

5M NW LEWISTOWN, Fergus, MT

Built 2009 Load: 30.1 t ADT: 100

US 87

Good

Over: ROCK CREEK

2M NE MOORE, Fergus, MT

Built 2021 Load: 30.8 t ADT: 2,202

FARREN HILL ROAD

Good

Over: MIDDLE FORK BEAVER CR

6.1M S GLENGARRY, Fergus, MT

Built 2021 Load: 30.8 t ADT: 100

TOGNETTI RD

Good

Over: JUDITH RIVER 037

6M NW MOORE, Fergus, MT

Built 1995 Load: 30.8 t ADT: 100

CARROLL TRAIL

Good

Over: BEAVER CREEK 138

5M S GLENGARRY, Fergus, MT

Built 2013 Load: 31.1 t ADT: 31

SANDROCK RD

Good

Over: WARM SPRINGS CREEK 077

4M NE DANVERS, Fergus, MT

Built 2010 Load: 31.4 t ADT: 100

TIMBERLINE RD

Good

Over: BIG SPRING CREEK 134

4M SE LEWISTOWN, Fergus, MT

Built 2012 Load: 31.4 t ADT: 100

HORSE RANCH RD

Good

Over: BOX ELDER CREEK 120

NW FERGUS, Fergus, MT

Built 1962 Load: 31.7 t ADT: 100

US 191

Good

Over: DAWKINS BRANCH

3M SW MOORE, Fergus, MT

Built 2021 Load: 31.8 t ADT: 2,094

COTTONWOOD CR RD

Good

Over: COTTONWOOD CREEK 027

7M SW LEWISTOWN, Fergus, MT

Built 2012 Load: 32.1 t ADT: 45

CHRISTINA ST W

Good

Over: DOG CREEK

CHRISTINA, Fergus, MT

Built 2020 Load: 32.7 t ADT: 100

BAIN STREET

Good

Over: WOLF CREEK

DENTON-BAIN ST, Fergus, MT

Built 2022 Load: 32.7 t ADT: 100

MABEE RD

Good

Over: BLOOD CREEK 040

3M N ROY, Fergus, MT

Built 2013 Load: 32.7 t ADT: 100

S 200

Good

Over: MCDONALD CREEK

4M NE GRASS RANGE, Fergus, MT

Built 1967 Load: 32.7 t ADT: 726

FOREST GROVE RD

Good

Over: S FORK MCDONALD CR 072

GRASSRANGE, Fergus, MT

Built 2011 Load: 33.4 t ADT: 146

S 19

Good

Over: SOUTH FORK BEAR CREEK

12M N GRASS RANGE, Fergus, MT

Built 1960 Load: 34.5 t ADT: 473

STONE BARN LN

Good

Over: ROCK CREEK 142

10M S MOORE, Fergus, MT

Built 2012 Load: 36.9 t ADT: 100

P 81

Good

Over: JUDITH RIVER

11M SE DENTON, Fergus, MT

Built 2020 Load: 37.2 t ADT: 263

P-81

Good

Over: WARM SPRING CREEK

13M SW HILGER, Fergus, MT

Built 2020 Load: 37.2 t ADT: 375

S 19

Good

Over: MCDONALD CREEK

2M N GRASS RANGE, Fergus, MT

Built 1962 Load: 37.2 t ADT: 586

S-81

Good

Over: WOLF CREEK

DENTON, Fergus, MT

Built 2022 Load: 38.1 t ADT: 369

S 19

Good

Over: FORDS CREEK

7M N GRASS RANGE, Fergus, MT

Built 1962 Load: 39.0 t ADT: 586

S 19

Good

Over: CHIPPEWA CREEK

3M N GRASS RANGE, Fergus, MT

Built 1962 Load: 41.7 t ADT: 586

S 19

Good

Over: LITTLE BOX ELDER CREEK

9M N GRASS RANGE, Fergus, MT

Built 1962 Load: 42.6 t ADT: 586

US 87

Good

Over: BEAVER CREEK

7M SW LEWISTOWN, Fergus, MT

Built 2009 Load: 43.5 t ADT: 2,443

S 19

Good

Over: NORTH FORK BEAR CREEK

11M SE ROY, Fergus, MT

Built 1960 Load: 44.5 t ADT: 473

US 87

Good

Over: LITTLE ROCK CR-STOCKPASS

4M NE MOORE, Fergus, MT

Built 2009 Load: 99.9 t ADT: 2,202

US 191

Good

Over: ROSS FORK CREEK

2M S GARNEILL, Fergus, MT

Built 1990 Load: 99.9 t ADT: 2,077

6TH AVE S

Poor

Over: BIG SPRING CREEK 133

LEWISTOWN-6TH AVE S, Fergus, MT

Built 1962 Load: 4.5 t ADT: 434

W BROADWAY STREET

Poor

Over: BIG SPRING CREEK 062

LEWISTOWN-W BROADWAY ST, Fergus, MT

Built 1940 Load: 4.5 t ADT: 100

THIRD AVENUE S

Poor

Over: LITTLE CASINO CREEK 138

LEWISTOWN-3RD AVE S, Fergus, MT

Built 2006 Load: 4.5 t ADT: 100

ROAD 220

Poor

Over: CARROLL COULEE

SECT 22 T21N R26E, Fergus, MT

Built 1963 Load: 24.5 t ADT: 5

N DAWES STREET

Poor

Over: BIG SPRING CREEK 061

LEWISTOWN-N DAWES ST, Fergus, MT

Built 1940 Load: 24.5 t ADT: 100

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.