Gallatin County, MT

207 public highway bridges

Gallatin County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Gallatin County, Montana contains 207 public highway bridges. Roughly 16.4% are rated “Good,” 62.8% “Fair,” and 4.3% “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.

207

Total Bridges

16.4%

Good

62.8%

Fair

4.3%

Poor Condition

Condition Distribution

Good

16.4% (34)

Fair

62.8% (130)

Poor

4.3% (9)

All Bridges (207)

Sort:

S 19TH RD

Over: HYALITE CREEK

6M SW BOZEMAN, Gallatin, MT

Built 1988 Load: 29.9 t ADT: 1,821

LITTLE BEAR RD

Over: W GALLATIN CANAL 119

2M S GALLATIN GATEWAY, Gallatin, MT

Built 2005 Load: 30.7 t ADT: 100

I 90

Over: MADISON RIVER-RR

0.6M E THREE FORKS, Gallatin, MT

Built 1964 Load: 30.8 t ADT: 9,524

PENWELL BRIDGE RD

Over: E GALLATIN RIVER 059

3M NE BELGRADE, Gallatin, MT

Built 1985 Load: 30.8 t ADT: 560

SPAIN BRIDGE RD

Over: E GALLATIN RIVER 058

5M E BELGRADE, Gallatin, MT

Built 1975 Load: 30.8 t ADT: 100

CANAL RD

Over: GODFREY CREEK 083

2M S CHURCHILL, Gallatin, MT

Built 1988 Load: 30.8 t ADT: 100

SPRINGHILL RD

Over: EAST GALLATIN RIVER

3M NW BOZEMAN, Gallatin, MT

Built 1990 Load: 30.8 t ADT: 9,053

SPRINGHILL RD

Over: CHURN CREEK

4M NW BOZEMAN, Gallatin, MT

Built 1990 Load: 30.8 t ADT: 9,053

E KAGY BLVD

Over: BOZEMAN CREEK

BOZEMAN-E KAGY BLVD, Gallatin, MT

Built 1984 Load: 30.8 t ADT: 9,638

US 287

Over: GRAYLING CREEK

10M NW WEST YELLOWSTONE, Gallatin, MT

Built 1964 Load: 31.8 t ADT: 1,059

DRY CREEK RD

Over: E GALLATIN RIVER OVERFLO

4M N BELGRADE, Gallatin, MT

Built 1957 Load: 31.8 t ADT: 2,093

I 90

Over: DARLINGTON DITCH

1.9M E THREE FORKS, Gallatin, MT

Built 1963 Load: 32.7 t ADT: 9,524

I 90

Over: DARLINGTON DITCH

1.9M E THREE FORKS, Gallatin, MT

Built 1963 Load: 32.7 t ADT: 9,524

I 90

Over: RR

BOZEMAN, Gallatin, MT

Built 1971 Load: 32.7 t ADT: 10,307

SIXTEEN MILE ROAD

Over: SIXTEEN MILE CREEK 070

MAUDLOW, Gallatin, MT

Built 1974 Load: 32.7 t ADT: 100

W CAMERON BR RD

Over: GALLATIN RIVER 048

1M SW BELGRADE, Gallatin, MT

Built 2007 Load: 32.7 t ADT: 100

COTTONWOOD RD

Over: S COTTONWOOD CREEK 123

3.5M SE GALLATIN GATEWAY, Gallatin, MT

Built 2014 Load: 32.7 t ADT: 100

COTTONWOOD ROAD

Over: S COTTONWOOD CREEK 124

3.6M SE GALLATIN GATEWAY, Gallatin, MT

Built 2014 Load: 32.7 t ADT: 100

CHAPMAN RD

Over: HYALITE CREEK 049

5M SW BOZEMAN, Gallatin, MT

Built 2014 Load: 32.7 t ADT: 100

JOHNSON ROAD

Over: HYALITE CREEK 125

6M SW BOZEMAN, Gallatin, MT

Built 2014 Load: 32.7 t ADT: 100

E GRIFFIN DR

Over: E GALLATIN RIVER 090

1M N BOZEMAN, Gallatin, MT

Built 1989 Load: 32.7 t ADT: 7,331

E TAMARACK STREET

Over: BOZEMAN CREEK 115

BOZEMAN-E TAMARACK ST, Gallatin, MT

Built 1982 Load: 32.7 t ADT: 100

US 287

Over: MADISON RIVER

3M N WEST YELLOWSTONE, Gallatin, MT

Built 1968 Load: 32.7 t ADT: 3,903

US 191 FH 42

Over: GRAYLING CREEK

14M N WEST YELLOWSTONE, Gallatin, MT

Built 1962 Load: 32.7 t ADT: 2,481

US 191 FH 42

Over: GRAYLING CREEK

15M N WEST YELLOWSTONE, Gallatin, MT

Built 1962 Load: 32.7 t ADT: 2,481

US 191 FH 42

Over: GALLATIN RIVER

14M S GALLATIN GATEWAY, Gallatin, MT

Built 1950 Load: 32.7 t ADT: 8,666

TRIDENT RD

Over: GALLATIN RIVER

1M SW TRIDENT, Gallatin, MT

Built 1975 Load: 32.7 t ADT: 487

DRY CREEK RD

Over: EAST GALLATIN RIVER

3M N BELGRADE, Gallatin, MT

Built 1957 Load: 32.7 t ADT: 2,093

GATEWAY S RD

Over: GALLATIN RIVER 019

GALLATIN GATEWAY, Gallatin, MT

Built 2001 Load: 33.2 t ADT: 100

I 90

Over: RR

BOZEMAN, Gallatin, MT

Built 1971 Load: 33.6 t ADT: 10,307

US 191 FH 42

Over: GRAYLING CREEK

10M N WEST YELLOWSTONE, Gallatin, MT

Built 2012 Load: 33.6 t ADT: 2,481

S 86-BRIDGER DR

Over: EAST GALLATIN RIVER

1M N BOZEMAN, Gallatin, MT

Built 1984 Load: 33.7 t ADT: 8,393

US 287

Over: CABIN CREEK

23M NW WEST YELLOWSTONE, Gallatin, MT

Built 1964 Load: 34.0 t ADT: 945

L ST

Over: E GALLATIN RIVER 091

NE BOZEMAN, Gallatin, MT

Built 2001 Load: 34.4 t ADT: 1,750

I 90

Over: MADISON RIVER OVERFLOW

2.5M E THREE FORKS, Gallatin, MT

Built 1963 Load: 34.5 t ADT: 9,524

US 191 FH 45

Over: COUGAR CREEK

7M N WEST YELLOWSTONE, Gallatin, MT

Built 1964 Load: 34.5 t ADT: 3,257

US 191 FH 42

Over: SWAN CREEK

12M NE BIG SKY, Gallatin, MT

Built 2009 Load: 34.5 t ADT: 8,666

E VALLEY CENTER RD

Over: HYALITE CREEK

3M NW BOZEMAN, Gallatin, MT

Built 2011 Load: 34.5 t ADT: 6,077

DRY CREEK RD

Over: REESE CREEK

4M N BELGRADE, Gallatin, MT

Built 1957 Load: 34.5 t ADT: 2,093

I 90

Over: RR

4.3M E BOZEMAN, Gallatin, MT

Built 2006 Load: 35.4 t ADT: 9,533

I 90

Over: RR

4.3M E BOZEMAN, Gallatin, MT

Built 2006 Load: 35.4 t ADT: 9,533

BRACKETT CR RD

Over: BRACKETT CREEK 121

19M N BOZEMAN, Gallatin, MT

Built 1989 Load: 35.7 t ADT: 257

I 90

Over: JEFFERSON RIVER OVERFLOW

THREE FORKS, Gallatin, MT

Built 1969 Load: 36.3 t ADT: 8,465

I 90

Over: ABANDONED RR

THREE FORKS, Gallatin, MT

Built 1969 Load: 37.2 t ADT: 8,465

LONE MOUNTAIN TRL

Over: W FORK W GALLATIN 001

2M E BIG SKY, Gallatin, MT

Built 1972 Load: 37.2 t ADT: 9,549

US 20

Over: S FORK MADISON RIVER

4M W WEST YELLOWSTONE, Gallatin, MT

Built 2009 Load: 37.2 t ADT: 4,289

GATEWAY S RD

Over: GALLATIN RIVER 020

1M W GALLATIN GATEWAY, Gallatin, MT

Built 2001 Load: 37.7 t ADT: 100

US 191 FH 42

Over: WEST FORK GALLATIN RIVER

2M E BIG SKY, Gallatin, MT

Built 2009 Load: 38.1 t ADT: 8,666

SKUNK CREEK ROAD

Over: BRACKETT CREEK

BANGTAILS - N.OF BOZEMAN, Gallatin, MT

Built 1972 Load: 38.6 t ADT: 50

S 2

Over: JEFFERSON RIVER

2M W THREE FORKS, Gallatin, MT

Built 1949 Load: 39.0 t ADT: 1,487

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.