Wibaux County, MT

24 public highway bridges

Wibaux County Bridge Snapshot

Wibaux County, Montana contains 24 public highway bridges in the FHWA National Bridge Inventory. Roughly 12.5% are rated “Good,” 62.5% “Fair,” 4.2% “Poor,” and 4.2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MT are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

24
Total Bridges
12.5%
Good
4.2%
Poor
4.2%
Structurally Deficient

Condition Distribution

Good
12.5% (3)
Fair
62.5% (15)
Poor
4.2% (1)
SD
4.2% (1)

All Bridges (24)

I 94

Unknown

Over: INT CARLYLE RD

6M E WIBAUX, Wibaux, MT

Built 1974 ADT: 113

I 94

Unknown

Over: INT CARLYLE RD

6M E WIBAUX, Wibaux, MT

Built 1974 ADT: 113

FRONTAGE ROAD 044

Unknown

Over: INT ROCHLITZ I 94 001

5M W WIBAUX, Wibaux, MT

Built 1974 ADT: 4,320

S 7-LOG CABIN RD

Unknown

Over: INT E WIBAUX I 94

NORTHEAST WIBAUX, Wibaux, MT

Built 1962 ADT: 3,583

S 97

Unknown

Over: INT W WIBAUX-I 94

NW OF WIBAUX, Wibaux, MT

Built 1962 ADT: 1,912

PINE UNIT RD

Fair

Over: CEDAR CREEK 010

31M SW WIBAUX, Wibaux, MT

Built 1987 Load: 12.7 t ADT: 100

S 7

Fair

Over: DRAINAGE-STOCKPASS

18M S WIBAUX, Wibaux, MT

Built 1942 Load: 25.4 t ADT: 624

S 7

Fair

Over: BEAVER CREEK

SOUTH EDGE OF WIBAUX, Wibaux, MT

Built 1949 Load: 25.4 t ADT: 1,661

S 7

Fair

Over: ASH CREEK

25M S WIBAUX, Wibaux, MT

Built 1942 Load: 29.0 t ADT: 578

S 7

Fair

Over: DRAINAGE-STOCKPASS

17M S WIBAUX, Wibaux, MT

Built 1941 Load: 29.0 t ADT: 624

SAINT PHILIP RD

Fair

Over: DRAINAGE

15M SE WIBAUX, Wibaux, MT

Built 1954 Load: 29.0 t ADT: 40

COUNTY ROAD 031

Fair

Over: SMITH CREEK 007

29M N WIBAUX, Wibaux, MT

Built 2012 Load: 29.9 t ADT: 100

1ST AVE

Fair

Over: BEAVER CREEK 009

WIBAUX-1ST AVE, Wibaux, MT

Built 1986 Load: 29.9 t ADT: 100

EDGE HILL RD E

Fair

Over: BEAVER CREEK 017

18M S WIBAUX, Wibaux, MT

Built 1997 Load: 30.8 t ADT: 100

S 7

Fair

Over: RATTLESNAKE CREEK

22M S WIBAUX, Wibaux, MT

Built 1942 Load: 30.8 t ADT: 624

TRUCK ROUTE RD

Fair

Over: YATES CREEK 003

EAST WIBAUX, Wibaux, MT

Built 1939 Load: 35.4 t ADT: 53

I 94

Fair

Over: BEAVER CREEK

N WIBAUX, Wibaux, MT

Built 1962 Load: 46.3 t ADT: 1,609

I 94

Fair

Over: BEAVER CREEK

N WIBAUX, Wibaux, MT

Built 1974 Load: 49.9 t ADT: 1,792

I 94

Fair

Over: YATES CREEK

1M E WIBAUX, Wibaux, MT

Built 1962 Load: 99.9 t ADT: 3,583

I 94

Fair

Over: YATES CREEK

2M E WIBAUX, Wibaux, MT

Built 2000 Load: 99.9 t ADT: 3,583

S7-2ndAVE NE

Good

Over: Beaver Creek

NE Edge of Wibuax, Wibaux, MT

Built 2023 ADT: 1,060

SAINT PHILIP RD

Good

Over: BEAVER CREEK

11M S WIBAUX, Wibaux, MT

Built 2023 ADT: 36

S 7

Good

Over: BEAVER CREEK

1M S WIBAUX, Wibaux, MT

Built 2022 Load: 32.4 t ADT: 759

CARLYLE RD E

Poor

Over: BEAVER CREEK

6M W CARLYLE, Wibaux, MT

Built 1960 Load: 18.1 t ADT: 38

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial