Beaverhead County, MT

217 public highway bridges

Beaverhead County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Beaverhead County, Montana contains 217 public highway bridges. Roughly 20.7% are rated “Good,” 49.3% “Fair,” and 9.2% “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.

217
Total Bridges
20.7%
Good
49.3%
Fair
9.2%
Poor Condition

Condition Distribution

Good
20.7% (45)
Fair
49.3% (107)
Poor
9.2% (20)

All Bridges (217)

I 15

Fair

Over: SEP LOCAL ROAD

2.5M S DILLON, Beaverhead, MT

Built 1983 Load: 28.1 t ADT: 2,826

I 15

Fair

Over: SEP LOCAL ROAD

2.5M S DILLON, Beaverhead, MT

Built 1983 Load: 28.1 t ADT: 2,826

ROCK CREEK RD

Fair

Over: BIG HOLE RIVER 078

3M SW WISDOM, Beaverhead, MT

Built 1989 Load: 28.1 t ADT: 100

TRAPPER CR RD

Fair

Over: BIG HOLE OVERFLOW 055

MELROSE, Beaverhead, MT

Built 1973 Load: 28.1 t ADT: 187

S 43

Fair

Over: BIG HOLE RIVER

7M NW WISE RIVER, Beaverhead, MT

Built 1960 Load: 28.1 t ADT: 419

S 278

Fair

Over: GRASSHOPPER CREEK

21M W DILLON, Beaverhead, MT

Built 1957 Load: 28.1 t ADT: 656

S 324

Fair

Over: MEDICINE LODGE CREEK

7M E GRANT, Beaverhead, MT

Built 1963 Load: 28.1 t ADT: 282

I 15

Fair

Over: POINDEXTER SLOUGH

2.5M S DILLON, Beaverhead, MT

Built 1983 Load: 29.0 t ADT: 2,826

I 15

Fair

Over: POINDEXTER SLOUGH

2.5M S DILLON, Beaverhead, MT

Built 1983 Load: 29.0 t ADT: 2,826

OLD STAGE RD

Fair

Over: BEAVERHEAD RIVER 047

E BARRETTS INT, Beaverhead, MT

Built 1995 Load: 29.0 t ADT: 292

S 324

Fair

Over: HORSE PRAIRIE CREEK

8M E GRANT, Beaverhead, MT

Built 1963 Load: 29.0 t ADT: 282

I 15

Fair

Over: BEAVERHEAD RIVER

CLARK CANYON DAM, Beaverhead, MT

Built 1981 Load: 29.9 t ADT: 2,836

I 15

Fair

Over: BEAVERHEAD RIVER

8M N CLARK CANYON DAM, Beaverhead, MT

Built 1980 Load: 29.9 t ADT: 2,210

LOWER N FORK RD

Fair

Over: SWAMP CREEK 070

3M N WISDOM, Beaverhead, MT

Built 1975 Load: 29.9 t ADT: 44

LIMA DAM ROAD

Fair

Over: RED ROCK RIVER

5M E LIMA, Beaverhead, MT

Built 2019 Load: 30.8 t ADT: 116

OLD STAGE RD

Fair

Over: LOCAL DRAINAGE 048

E BARRETTS INT, Beaverhead, MT

Built 1959 Load: 31.8 t ADT: 292

S 278

Fair

Over: DRAINAGE

JACKSON, Beaverhead, MT

Built 1970 Load: 31.9 t ADT: 389

RED ROCK PASS RD

Fair

Over: ODELL CREEK

1.2 MI SE OF LAKEVIEW, Beaverhead, MT

Built 1992 Load: 32.7 t ADT: 100

I 15

Fair

Over: BEAVERHEAD RIVER

CLARK CANYON DAM, Beaverhead, MT

Built 1962 Load: 32.7 t ADT: 2,836

I 15

Fair

Over: DRAINAGE IRR DITCH

DILLON, Beaverhead, MT

Built 1973 Load: 32.7 t ADT: 3,991

CO RD 002 FH 73

Fair

Over: WISE RIVER 020

12M S WISE RIVER, Beaverhead, MT

Built 1971 Load: 32.7 t ADT: 289

CO RD 002 FH 73

Fair

Over: WISE RIVER 076

13M S WISE RIVER, Beaverhead, MT

Built 1971 Load: 32.7 t ADT: 289

LOWER N FORK RD

Fair

Over: IRRIGATION CANAL 068

7M N WISDOM, Beaverhead, MT

Built 1994 Load: 32.7 t ADT: 44

TWIN LAKES RD

Fair

Over: BIG HOLE RIVER 080

6M S WISDOM, Beaverhead, MT

Built 1999 Load: 32.7 t ADT: 100

BIG LAKE CR

Fair

Over: BIG HOLE RIVER 090

8M NW JACKSON, Beaverhead, MT

Built 1977 Load: 32.7 t ADT: 100

SAGE CREEK RD

Fair

Over: SAGE CREEK 024

12M NE DELL, Beaverhead, MT

Built 1985 Load: 32.7 t ADT: 70

BIG SHEEP CR RD

Fair

Over: BIG SHEEP CREEK 122

5.6M SW DELL, Beaverhead, MT

Built 1985 Load: 32.7 t ADT: 175

S 43 FH 20

Fair

Over: BIG HOLE RIVER

WISDOM, Beaverhead, MT

Built 1962 Load: 32.7 t ADT: 590

S 278

Fair

Over: WARM SPRING CREEK

JACKSON, Beaverhead, MT

Built 1970 Load: 33.5 t ADT: 389

I 15

Fair

Over: BEAVERHEAD RIVER

5M N CLARK CANYON DAM, Beaverhead, MT

Built 1964 Load: 34.0 t ADT: 2,836

I 15

Fair

Over: RED ROCK RIVER

6.2M S CLARK CANYON DAM, Beaverhead, MT

Built 1962 Load: 34.5 t ADT: 2,089

CO RD 002 FH 73

Fair

Over: WISE RIVER 018

18M S WISE RIVER, Beaverhead, MT

Built 1987 Load: 34.5 t ADT: 289

I 15 FRONTAGE RD

Fair

Over: BEAVERHEAD R-INT RAMP

8M N CLARK CANYON DAM, Beaverhead, MT

Built 1988 Load: 35.4 t ADT: 100

S 89

Fair

Over: BLACKTAIL CREEK

SOUTH DILLON, Beaverhead, MT

Built 1983 Load: 35.4 t ADT: 1,770

I 15

Fair

Over: SEP RR

1.2M N MONIDA, Beaverhead, MT

Built 2015 Load: 36.3 t ADT: 1,643

CO RD 002 FH 73

Fair

Over: WISE RIVER 019

17M S WISE RIVER, Beaverhead, MT

Built 1987 Load: 36.3 t ADT: 289

S 43

Fair

Over: WISE RIVER

WISE RIVER, Beaverhead, MT

Built 1970 Load: 36.3 t ADT: 576

I 15

Fair

Over: SEP RR

1.9M S LIMA, Beaverhead, MT

Built 1980 Load: 37.2 t ADT: 1,643

S 89

Fair

Over: RR

SOUTH DILLON, Beaverhead, MT

Built 1983 Load: 37.2 t ADT: 1,770

MT HWY 91

Fair

Over: BEAVERHEAD RIVER

3M SW DILLON, Beaverhead, MT

Built 1945 Load: 37.3 t ADT: 582

FDR 1278

Fair

Over: PINTLAR CREEK

NO DATA ENTERED, Beaverhead, MT

Built 1981 Load: 37.6 t ADT: 15

LAKNAR LN

Fair

Over: BEAVERHEAD RIVER 095

1M N DILLON, Beaverhead, MT

Built 2001 Load: 38.3 t ADT: 2,823

FDR 192

Fair

Over: ROCK CR

ROCK CR, Beaverhead, MT

Built 1986 Load: 38.6 t ADT: 40

MINER LAKE RD

Fair

Over: BIG HOLE RIVER 093

2M SW JACKSON, Beaverhead, MT

Built 2004 Load: 39.9 t ADT: 100

ANDERSON LANE

Fair

Over: WEST SIDE CANAL 1

6M NE DILLON, Beaverhead, MT

Built 2012 Load: 39.9 t ADT: 53

NFSR #1137

Fair

Over: JOHNSON CR.

BENDER CR., Beaverhead, MT

Built 2002 Load: 40.2 t ADT: 15

RED ROCK ROAD

Fair

Over: BIG SHEEP CREEK 026

SE DELL, Beaverhead, MT

Built 1931 Load: 41.7 t ADT: 100

I 15

Fair

Over: BEAVERHEAD RIVER

3.1M S DILLON, Beaverhead, MT

Built 1982 Load: 43.5 t ADT: 2,826

I 15

Fair

Over: BIG SHEEP CREEK

0.6M S DELL, Beaverhead, MT

Built 1971 Load: 48.1 t ADT: 1,803

I 15

Fair

Over: BIG SHEEP CREEK

0.6M S DELL, Beaverhead, MT

Built 1971 Load: 48.1 t ADT: 1,803

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.