Fallon County, MT

35 public highway bridges

Fallon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Fallon County, Montana contains 35 public highway bridges. Roughly 40% are rated “Good,” 54.3% “Fair,” and 5.7% “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.

35
Total Bridges
40%
Good
54.3%
Fair
5.7%
Poor Condition

Condition Distribution

Good
40% (14)
Fair
54.3% (19)
Poor
5.7% (2)

All Bridges (35)

US 12

Fair

Over: RR

2M SE BAKER, Fallon, MT

Built 1968 Load: 20.9 t ADT: 671

US 12

Fair

Over: SANDSTONE CREEK

2M W PLEVNA, Fallon, MT

Built 1971 Load: 25.4 t ADT: 495

US 12

Fair

Over: HAY CREEK

9M W PLEVNA, Fallon, MT

Built 1932 Load: 27.2 t ADT: 513

PLEVNA RD S

Fair

Over: SOUTH FORK SANDSTONE CR

1M S PLEVNA, Fallon, MT

Built 1964 Load: 27.2 t ADT: 76

SNAKE TRAIL

Fair

Over: DRAINAGE 054

19M NE BAKER, Fallon, MT

Built 2003 Load: 27.9 t ADT: 100

COUNTY ROAD 054

Fair

Over: SANDSTONE CREEK 034

5M E PLEVNA, Fallon, MT

Built 2005 Load: 28.1 t ADT: 7

MAIN ST S

Fair

Over: SANDSTONE CREEK

SOUTH PLEVNA, Fallon, MT

Built 1964 Load: 29.0 t ADT: 118

US 12

Fair

Over: O`FALLON CREEK

11M W PLEVNA, Fallon, MT

Built 1971 Load: 29.9 t ADT: 513

S 322

Fair

Over: LITTLE BEAVER CREEK

16M S BAKER, Fallon, MT

Built 1992 Load: 31.8 t ADT: 42

S 7-MAIN ST N

Fair

Over: SANDSTONE CREEK

NORTH EDGE BAKER, Fallon, MT

Built 1941 Load: 32.7 t ADT: 2,196

US 12

Fair

Over: TIMBER CREEK

5M W BAKER, Fallon, MT

Built 1998 Load: 35.4 t ADT: 820

COUNTY ROAD 154

Fair

Over: LITTLE BEAVER CREEK 015

8M SW WEBSTER, Fallon, MT

Built 2014 Load: 36.3 t ADT: 100

SUNNY BANK RD

Fair

Over: S FK SANDSTONE CREEK 044

9M SE PLEVNA, Fallon, MT

Built 2013 Load: 37.2 t ADT: 100

CABIN CR RD

Fair

Over: CABIN CREEK 053

24M NW BAKER, Fallon, MT

Built 2012 Load: 37.2 t ADT: 100

US 12

Fair

Over: DRAINAGE

WEST EDGE BAKER, Fallon, MT

Built 1998 Load: 39.0 t ADT: 1,590

COUNTY ROAD 137

Fair

Over: S FK SANDSTONE CREEK 025

1M SW PLEVNA, Fallon, MT

Built 2011 Load: 42.6 t ADT: 100

WESTMORE RD

Fair

Over: SANDSTONE CREEK 024

11M NW PLEVNA, Fallon, MT

Built 2016 Load: 42.6 t ADT: 20

US 12

Fair

Over: SANDSTONE CREEK

EAST EDGE PLEVNA, Fallon, MT

Built 1998 Load: 50.8 t ADT: 749

WILLARD RD W

Fair

Over: O`FALLON CREEK 005

31M SW PLEVNA, Fallon, MT

Built 1995 Load: 99.9 t ADT: 100

ISMAY RD

Good

Over: COTTONWOOD CREEK

3.9M S ISMAY, Fallon, MT

Built 2023 ADT: 38

BONNIEVALE RD

Good

Over: SANDSTONE CREEK

N BAKER, Fallon, MT

Built 2023 ADT: 100

ASH CR RD E

Good

Over: E FORK BEAVER CREEK 055

21M NE BAKER, Fallon, MT

Built 2003 Load: 25.4 t ADT: 100

WESTMORE RD

Good

Over: PENNEL CREEK 022

16M NW PLEVNA, Fallon, MT

Built 1991 Load: 27.2 t ADT: 20

COUNTY ROAD 178

Good

Over: LITTLE BEAVER CREEK 055

12M NE WEBSTER, Fallon, MT

Built 2013 Load: 31.8 t ADT: 100

WEBSTER RD

Good

Over: LITTLE BEAVER CREEK

18M NE EKALAKA, Fallon, MT

Built 1978 Load: 31.8 t ADT: 26

ANTICLINE RD

Good

Over: PENNEL CREEK 013

8M NW BAKER, Fallon, MT

Built 2009 Load: 32.7 t ADT: 30

ASH CR RD E

Good

Over: BEAVER CREEK 031

21M NE BAKER, Fallon, MT

Built 2003 Load: 33.2 t ADT: 100

LAKE ST

Good

Over: BAKER LAKE OVERFLOW

BAKER-LAKE ST, Fallon, MT

Built 2009 Load: 37.2 t ADT: 2,379

PRAIRIE VIEW DR

Good

Over: SANDSTONE CREEK 059

W EDGE BAKER, Fallon, MT

Built 2012 Load: 48.1 t ADT: 100

COUNTY ROAD 141

Good

Over: S FK SANDSTONE CREEK 048

8M SE PLEVNA, Fallon, MT

Built 2012 Load: 49.0 t ADT: 100

DRY FORK RD

Good

Over: PENNEL CREEK 023

9M NW PLEVNA, Fallon, MT

Built 2016 Load: 51.7 t ADT: 100

AG LANE

Good

Over: SANDSTONE CREEK 056

1M W BAKER, Fallon, MT

Built 2014 Load: 54.4 t ADT: 100

PLEVNA RD N

Good

Over: PENNEL CREEK

6 M N PLEVNA, Fallon, MT

Built 2020 Load: 61.7 t ADT: 107

WESTMORE ROAD

Poor

Over: SANDSTONE CREEK

15 M NW PLEVNA, Fallon, MT

Built 1920 ADT: 100

CABIN CREEK LOOP

Poor

Over: CABIN CREEK 057

22M N PLEVNA, Fallon, MT

Built 1980 Load: 99.9 t ADT: 30

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.