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)

Sort:

I 15

Over: INT MONIDA S 509

MONIDA, Beaverhead, MT

Built 1959 ADT: 100

I 15

Over: INT MONIDA S 509

MONIDA, Beaverhead, MT

Built 1981 ADT: 100

I 15

Over: SEP SNOWLINE STOCK LN

2.5M N MONIDA, Beaverhead, MT

Built 1981 ADT: 1

I 15

Over: SEP SNOWLINE STOCK LN

2.5M N MONIDA, Beaverhead, MT

Built 1981 ADT: 1

I 15

Over: INT SNOWLINE STOCK LN

5.6M S LIMA, Beaverhead, MT

Built 1981 ADT: 25

I 15

Over: INT SNOWLINE STOCK LN

5.6M S LIMA, Beaverhead, MT

Built 1981 ADT: 25

I 15

Over: INT LIMA-BAILEY ST

LIMA, Beaverhead, MT

Built 1959 ADT: 1,987

I 15

Over: INT LIMA-BAILEY ST

LIMA, Beaverhead, MT

Built 1980 ADT: 1,987

I 15

Over: SEP GOSMAN LANE

3.7M S DELL, Beaverhead, MT

Built 1967 ADT: 100

I 15

Over: SEP GOSMAN LANE

3.7M S DELL, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: INT DELL

DELL-MAIN ST, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: INT DELL

DELL-MAIN ST, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: INT KIDD

5.6M N DELL-KIDD LN, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: INT KIDD

5.6M N DELL-KIDD LN, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: INT RED ROCK-RED ROCK RD

7.4M S CLARK CANYON DAM, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: INT RED ROCK-RED ROCK RD

7.4M S CLARK CANYON DAM, Beaverhead, MT

Built 1971 ADT: 100

I 15

Over: SEP ROE LN

6.2M S CLARK CANYON DAM, Beaverhead, MT

Built 1962 ADT: 4

I 15

Over: SEP ROE LN

6.2M S CLARK CANYON DAM, Beaverhead, MT

Built 1980 ADT: 4

I 15

Over: BEAVERHD R-HIGH BRDG RD

1.2M N CLARK CANYON DAM, Beaverhead, MT

Built 1964 ADT: 100

I 15

Over: BEAVERHD R-HIGH BRDG RD

1.2M N CLARK CANYON DAM, Beaverhead, MT

Built 1981 ADT: 100

I 15

Over: SEP HIGH BRIDGE RD

3.7M N CLARK CANYON DAM, Beaverhead, MT

Built 1986 ADT: 100

I 15

Over: SEP HIGH BRIDGE RD

3.7M N CLARK CANYON DAM, Beaverhead, MT

Built 1986 ADT: 100

I 15

Over: SEP HIGH BRIDGE RD

6.2M N CLARK CANYON DAM, Beaverhead, MT

Built 1988 ADT: 100

I 15

Over: SEP HIGH BRDGE RD

6.2M N CLARK CANYON DAM, Beaverhead, MT

Built 1988 ADT: 100

I 15

Over: INT GRASSHOPPER CREEK

8M N CLARK CANYON DAM, Beaverhead, MT

Built 1988 ADT: 100

I 15

Over: INT GRASSHOPPER CREEK

8M N CLARK CANYON DAM, Beaverhead, MT

Built 1988 ADT: 100

I 15

Over: INT BARRETTS-REBICH LN

7.4M S DILLON, Beaverhead, MT

Built 1965 ADT: 100

I 15

Over: INT BARRETTS-REBICH LN

7.4M S DILLON, Beaverhead, MT

Built 1980 ADT: 100

I 15

Over: INT JACKSON-HWY 278

3.7M S DILLON, Beaverhead, MT

Built 1982 ADT: 1,144

I 15

Over: INT JACKSON-HWY 278

3.7M S DILLON, Beaverhead, MT

Built 1982 ADT: 1,144

I 15

Over: SEP PARK STREET

DILLON, Beaverhead, MT

Built 1983 ADT: 100

I 15

Over: SEP PARK STREET

DILLON, Beaverhead, MT

Built 1983 ADT: 100

I 15

Over: INT APEX-BIRCH CR RD

11.2M N DILLON, Beaverhead, MT

Built 1973 ADT: 30

I 15

Over: INT APEX-BIRCH CR RD

11.2M N DILLON, Beaverhead, MT

Built 1973 ADT: 30

I 15

Over: SEP COUNTY RD 203

11.2M S MELROSE, Beaverhead, MT

Built 1973 ADT: 100

I 15

Over: SEP COUNTY RD 203

11.2M S MELROSE, Beaverhead, MT

Built 1973 ADT: 100

I 15

Over: INT ROCK CR-BROWNES BR R

8M S MELROSE, Beaverhead, MT

Built 1973 ADT: 146

I 15

Over: INT ROCK CR-BROWNES BR R

8M S MELROSE, Beaverhead, MT

Built 1973 ADT: 146

FRYING PAN RD

Over: SEP I 15 126

3M N DILLON, Beaverhead, MT

Built 1973 ADT: 1,996

LOVERS LEAP RD

Over: SEP I 15 12

1M N DILLON, Beaverhead, MT

Built 1973 ADT: 1,996

BOND RD

Over: SEP I 15 12

7M N DILLON, Beaverhead, MT

Built 1973 ADT: 3,991

S 89

Over: INT SOUTH DILLON I 15

DILLON, Beaverhead, MT

Built 1983 ADT: 2,826

S 89

Over: LOCAL-BLACKTAIL CR-RR

DILLON, Beaverhead, MT

Built 1974 ADT: 2,660

S 89

Over: INT NORTH DILLON I 15

DILLON, Beaverhead, MT

Built 1973 ADT: 2,602

S 324

Over: INT HORSE PRAIRIE I 15

1M E CLARK CANYON DAM, Beaverhead, MT

Built 1962 ADT: 2,089

BAILEY ST

Over: JUNCTION CREEK

LIMA, Beaverhead, MT

Built 1988 ADT: 174

NO DATA ENTERED

Over: WISE RIVER

NO DATA ENTERED, Beaverhead, MT

Built 1984 ADT: 4

BRUNDAGE LN

Over: RED ROCK RIVER 052

25M NE MONIDA, Beaverhead, MT

Built 1920 Load: 2.7 t ADT: 100

LOWER N FORK RD

Over: N FK BIG HOLE RIVER 069

6M N WISDOM, Beaverhead, MT

Built 1980 Load: 4.5 t ADT: 44

UPPER N FORK RD

Over: N FK BIG HOLE RIVER 063

6M NW WISDOM, Beaverhead, MT

Built 1978 Load: 4.5 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

P

Compiled by PlainBridges, Independent data publisher

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.