Yellowstone County, MT

283 public highway bridges

Yellowstone County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Yellowstone County, Montana contains 283 public highway bridges. Roughly 28.3% are rated “Good,” 46.3% “Fair,” and 1.1% “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.

283

Total Bridges

28.3%

Good

46.3%

Fair

1.1%

Poor Condition

Condition Distribution

Good

28.3% (80)

Fair

46.3% (131)

Poor

1.1% (3)

All Bridges (283)

Sort:

I 90

Over: INT W LAUREL-RR

LAUREL, Yellowstone, MT

Built 2019 ADT: 725

19TH AVE W

Over: I-90

LAUREL, Yellowstone, MT

Built 2020 ADT: 18,639

I 90

Over: SEP WOLD ROAD

1.9M W LAUREL, Yellowstone, MT

Built 1967 ADT: 590

I 90

Over: SEP WOLD ROAD

1.9M W LAUREL, Yellowstone, MT

Built 1967 ADT: 590

I 90

Over: INT LAUREL-P 4-RR

LAUREL, Yellowstone, MT

Built 1964 ADT: 13,578

I 90

Over: INT LAUREL-P 4-RR

LAUREL, Yellowstone, MT

Built 1964 ADT: 13,578

I 90

Over: INT MOSSMAIN ROAD-P 4

3.1M E LAUREL, Yellowstone, MT

Built 1964 ADT: 5,491

I 90

Over: INT MOSSMAIN ROAD-P 4

3.1M E LAUREL, Yellowstone, MT

Built 1964 ADT: 5,491

I 90

Over: SEP S 56TH ST W

5.6M W BILLINGS, Yellowstone, MT

Built 1961 ADT: 2,281

I 90

Over: SEP S 56TH ST W

5.6M W BILLINGS, Yellowstone, MT

Built 1961 ADT: 2,281

I 90

Over: INT W BILLINGS-U 1020

BILLINGS, Yellowstone, MT

Built 1964 ADT: 11,531

I 90

Over: INT W BILLINGS-U 1020

BILLINGS, Yellowstone, MT

Built 1964 ADT: 11,531

I 90

Over: INT W BILLINGS-U 1010

BILLINGS, Yellowstone, MT

Built 1994 ADT: 13,366

I 90

Over: INT W BILLINGS-U 1010

BILLINGS, Yellowstone, MT

Built 1994 ADT: 26,731

I 90

Over: INT JOHNSON LANE

2.5M E BILLINGS, Yellowstone, MT

Built 1967 ADT: 5,545

I 90

Over: INT JOHNSON LANE

2.5M E BILLINGS, Yellowstone, MT

Built 1967 ADT: 5,545

I 90

Over: INT PINEHILL-I 94

3.7M E BILLINGS, Yellowstone, MT

Built 1967 ADT: 4,414

I 90

Over: OLD HARDIN RD

4.3M E BILLINGS, Yellowstone, MT

Built 1969 ADT: 100

I 90

Over: OLD HARDIN RD

4.3M E BILLINGS, Yellowstone, MT

Built 1969 ADT: 100

I 90

Over: SEP INDIAN CR FRONTAGE R

13M E BILLINGS, Yellowstone, MT

Built 1972 ADT: 100

I 90

Over: SEP INDIAN CR FRONTAGE R

13M E BILLINGS, Yellowstone, MT

Built 1972 ADT: 100

I 90

Over: INT ARROW CREEK

16.8M E BILLINGS, Yellowstone, MT

Built 1972 ADT: 100

I 90

Over: INT ARROW CREEK

16.8M E BILLINGS, Yellowstone, MT

Built 1972 ADT: 100

I 94

Over: DICKIE ROAD

3.7M E BILLINGS, Yellowstone, MT

Built 1967 ADT: 1,742

I 94

Over: DICKIE ROAD

3.7M E BILLINGS, Yellowstone, MT

Built 1967 ADT: 1,742

I 94

Over: INT HUNTLEY-S 522

HUNTLEY, Yellowstone, MT

Built 1967 ADT: 4,306

I 94

Over: INT HUNTLEY-S 522

HUNTLEY, Yellowstone, MT

Built 1967 ADT: 4,306

I 94

Over: S 8TH RD

3.7M E HUNTLEY, Yellowstone, MT

Built 1967 ADT: 164

I 94

Over: S 8TH RD

3.7M E HUNTLEY, Yellowstone, MT

Built 1967 ADT: 164

I 94

Over: INT BALLANTINE

BALLANTINE, Yellowstone, MT

Built 1968 ADT: 87

I 94

Over: INT BALLANTINE

BALLANTINE, Yellowstone, MT

Built 1968 ADT: 87

I 94

Over: RR-HIGHLINE CANAL RD

1.9M E BALLANTINE, Yellowstone, MT

Built 1968 ADT: 65

I 94

Over: RR-HIGHLINE CANAL RD

1.9M E BALLANTINE, Yellowstone, MT

Built 1968 ADT: 65

I 94

Over: EAST I RD

2.5M E BALLANTINE, Yellowstone, MT

Built 1968 ADT: 100

I 94

Over: EAST I RD

2.5M E BALLANTINE, Yellowstone, MT

Built 1968 ADT: 100

I 94

Over: S 25TH RD

3.7M W POMPEYS PILLAR, Yellowstone, MT

Built 1968 ADT: 35

I 94

Over: S 25TH RD

3.7M W POMPEYS PILLAR, Yellowstone, MT

Built 1968 ADT: 35

I 94

Over: CANE ST

1.9M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: CANE ST

1.9M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: S 39TH RD

4.3M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: S 39TH RD

4.3M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: S 44TH RD

6.8M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: S 44TH RD

6.8M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: BULL MOUNTAIN RD

8M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: BULL MOUNTAIN RD

8M E POMPEYS PILLAR, Yellowstone, MT

Built 1976 ADT: 100

I 94

Over: SPRING CREEK ROAD

11.2M E POMPEYS PILLAR, Yellowstone, MT

Built 1973 ADT: 100

I 94

Over: SPRING CREEK ROAD

11.2M E POMPEYS PILLAR, Yellowstone, MT

Built 1973 ADT: 100

I 94

Over: INT WACO-CO ROAD

11.2M W CUSTER, Yellowstone, MT

Built 1973 ADT: 100

I 94

Over: INT WACO-CO ROAD

11.2M W CUSTER, Yellowstone, MT

Built 1973 ADT: 100

I 94

Over: INT CUSTER-S 310

CUSTER, Yellowstone, MT

Built 1973 ADT: 118

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

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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.