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)

US 87

Fair

Over: DRAINAGE

12M E LEWISTOWN, Fergus, MT

Built 1930 Load: 24.5 t ADT: 1,442

S 80

Fair

Over: ARROW CREEK

17M S GERALDINE, Fergus, MT

Built 1949 Load: 24.5 t ADT: 170

HANOVER RD

Fair

Over: JUDITH RIVER

5M NE KOLIN, Fergus, MT

Built 1970 Load: 24.5 t ADT: 113

FISH HATCHERY RD

Fair

Over: E FORK BIG SPRING CREEK

4M SE LEWISTOWN, Fergus, MT

Built 1966 Load: 24.5 t ADT: 161

WINIFRED HWY

Fair

Over: DOG CREEK

4M N HILGER, Fergus, MT

Built 1953 Load: 25.4 t ADT: 474

WINIFRED HWY

Fair

Over: DRAINAGE

3M S CHRISTINA, Fergus, MT

Built 1954 Load: 25.4 t ADT: 474

WINIFRED HWY

Fair

Over: DOG CREEK

CHRISTINA, Fergus, MT

Built 1954 Load: 25.4 t ADT: 474

US 191-1ST AVE N

Fair

Over: BIG SPRING CREEK

LEWISTOWN-1ST AVE N, Fergus, MT

Built 1960 Load: 26.3 t ADT: 6,387

US 87

Fair

Over: DRAINAGE

10M NW GRASS RANGE, Fergus, MT

Built 1939 Load: 26.3 t ADT: 1,442

HANOVER RD

Fair

Over: BIG SPRING CREEK

8M NW LEWISTOWN, Fergus, MT

Built 1966 Load: 26.3 t ADT: 1

DONALDSON RD

Fair

Over: DRY WOLF CREEK 090

7M E DENTON, Fergus, MT

Built 1982 Load: 27.2 t ADT: 100

UPPER ELK CR RD

Fair

Over: ELK CREEK 126

6M S GRASSRANGE, Fergus, MT

Built 1982 Load: 27.2 t ADT: 100

US 87

Fair

Over: DRAINAGE

6M NW GRASS RANGE, Fergus, MT

Built 1939 Load: 27.2 t ADT: 1,300

US 87

Fair

Over: DRAINAGE

3M NW GRASS RANGE, Fergus, MT

Built 1939 Load: 27.2 t ADT: 1,300

S 81

Fair

Over: DRY WOLF CREEK

6M SE DENTON, Fergus, MT

Built 1949 Load: 27.2 t ADT: 263

COUNTY ROAD 220

Fair

Over: FORDS CREEK 006

14M NW GRASSRANGE, Fergus, MT

Built 1981 Load: 28.1 t ADT: 100

US 191

Fair

Over: ARMELLS CREEK

27M NE ROY, Fergus, MT

Built 1963 Load: 28.1 t ADT: 622

SALT CREEK RD

Fair

Over: SALT CREEK 053

7M NW SUFFOLK, Fergus, MT

Built 1984 Load: 29.0 t ADT: 100

US 191

Fair

Over: BOX ELDER CREEK

2M E ROY, Fergus, MT

Built 1942 Load: 29.0 t ADT: 287

US 87

Fair

Over: DRAINAGE

7M NW GRASS RANGE, Fergus, MT

Built 1939 Load: 29.0 t ADT: 1,300

US 87

Fair

Over: DRAINAGE

4M NW GRASS RANGE, Fergus, MT

Built 1939 Load: 29.0 t ADT: 1,300

US 87

Fair

Over: DRAINAGE

2M NW GRASS RANGE, Fergus, MT

Built 1939 Load: 29.0 t ADT: 1,300

HITCHCOCK RD

Fair

Over: DRY WOLF CREEK 095

5M SE DENTON, Fergus, MT

Built 1980 Load: 29.3 t ADT: 4

BUTCHER RD

Fair

Over: DOG CREEK 107

4M S WINIFRED, Fergus, MT

Built 1962 Load: 29.9 t ADT: 100

US 87-W MAIN ST

Fair

Over: BIG SPRING CREEK

LEWISTOWN-W MAIN ST, Fergus, MT

Built 1962 Load: 29.9 t ADT: 5,247

US 87

Fair

Over: ELK CREEK

5M SE GRASS RANGE, Fergus, MT

Built 1952 Load: 29.9 t ADT: 1,038

LOWER RD

Fair

Over: WOLF CREEK 086

5M SW DENTON, Fergus, MT

Built 1962 Load: 30.8 t ADT: 73

US 87

Fair

Over: COTTONWOOD CREEK

5M SW LEWISTOWN, Fergus, MT

Built 2009 Load: 30.8 t ADT: 2,443

S 81

Fair

Over: WARM SPRING CREEK

7M SW HILGER, Fergus, MT

Built 1949 Load: 30.8 t ADT: 375

S 81

Fair

Over: WARM SPRING CREEK

5M SW HILGER, Fergus, MT

Built 1969 Load: 30.8 t ADT: 375

S COFFEE CR RD

Fair

Over: WOLF CREEK 076

4M S COFFEE CREEK, Fergus, MT

Built 1979 Load: 31.1 t ADT: 34

US 87

Fair

Over: BOYD CREEK

1M E LEWISTOWN, Fergus, MT

Built 1942 Load: 31.8 t ADT: 2,908

DY TRAIL

Fair

Over: DOG CREEK 110

E WINIFRED, Fergus, MT

Built 1962 Load: 32.7 t ADT: 167

TOGNETTI RD

Fair

Over: ROSS FORK 038

5M NW MOORE, Fergus, MT

Built 1995 Load: 32.7 t ADT: 100

CRABTREE RD

Fair

Over: DRY WOLF CREEK 092

5M SE DENTON, Fergus, MT

Built 1962 Load: 32.7 t ADT: 100

PINE STREET

Fair

Over: BIG SPRING CREEK 058

LEWISTOWN-PINE ST, Fergus, MT

Built 1962 Load: 32.7 t ADT: 100

S 238-E FORK RD

Fair

Over: E FORK BIG SPRING CREEK

8M SE LEWISTOWN, Fergus, MT

Built 1958 Load: 32.7 t ADT: 216

SW ASH ST

Fair

Over: BIG SPRING CREEK

LEWISTOWN-SW ASH ST, Fergus, MT

Built 1962 Load: 32.7 t ADT: 1,386

3 MILE RD

Fair

Over: SALT CREEK 055

6M W SUFFOLK, Fergus, MT

Built 1962 Load: 33.5 t ADT: 100

US 191

Fair

Over: WARM SPRINGS CREEK

5M SW HILGER, Fergus, MT

Built 2011 Load: 34.5 t ADT: 841

WINIFRED HWY

Fair

Over: DOG CREEK

CHRISTINA, Fergus, MT

Built 1954 Load: 34.5 t ADT: 382

SERIGHT RD

Fair

Over: ROCK CREEK 045

3M E MOORE, Fergus, MT

Built 1962 Load: 35.3 t ADT: 100

CIMRHAKL RD

Fair

Over: SACAGAWEA RIV 114

8M NE ROY, Fergus, MT

Built 1978 Load: 35.4 t ADT: 100

YELLOW WATER RD

Fair

Over: ELK CREEK 136

7 M SE GRASSRANGE, Fergus, MT

Built 1974 Load: 36.5 t ADT: 100

SALT CREEK RD

Fair

Over: DOG CREEK 054

N SUFFOLK, Fergus, MT

Built 1962 Load: 37.1 t ADT: 100

LOWER RD

Fair

Over: COYOTE CREEK 085

1M SW DENTON, Fergus, MT

Built 1977 Load: 59.1 t ADT: 73

UPPER CHIPPEWA RD

Fair

Over: CHIPPEWA CREEK 021

8M NW GRASSRANGE, Fergus, MT

Built 1962 Load: 99.9 t ADT: 100

US 191

Fair

Over: ROSS FORK CREEK

2M N JUDITH GAP, Fergus, MT

Built 1990 Load: 99.9 t ADT: 2,077

FOREST GROVE RD

Good

Over: S FORK MCDONALD CREEK

5M SW GRASSRANGE, Fergus, MT

Built 2021 Load: 12.7 t ADT: 146

ALLEN ROAD

Good

Over: COFFEE CREEK

9M NE DENTON, Fergus, MT

Built 2021 Load: 15.4 t ADT: 100

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

Related

Browse all → | Rankings →
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.