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)

FRONTAGE RD-S 205

Fair

Over: GALLATIN RIVER

3M SE MANHATTAN, Gallatin, MT

Built 1949 Load: 39.3 t ADT: 2,981

FRONTAGE RD-S 205

Fair

Over: RR

MANHATTAN, Gallatin, MT

Built 2010 Load: 40.8 t ADT: 2,232

ICE POND RD

Fair

Over: BOZEMAN CREEK 122

BOZEMAN-ICE POND RD, Gallatin, MT

Built 2010 Load: 41.7 t ADT: 100

S 205-FRONTAGE RD

Fair

Over: MID FORK MADISON RIVER

2M E THREE FORKS, Gallatin, MT

Built 1990 Load: 41.7 t ADT: 1,473

I 90

Fair

Over: MADISON RIVER OVERFLOW

2.5M E THREE FORKS, Gallatin, MT

Built 1963 Load: 42.6 t ADT: 9,524

I 90

Fair

Over: GALLATIN RIVER

3.1M E MANHATTAN, Gallatin, MT

Built 1965 Load: 42.6 t ADT: 9,601

I 90

Fair

Over: GALLATIN RIVER

3.1M E MANHATTAN, Gallatin, MT

Built 1965 Load: 42.6 t ADT: 9,601

RAT LAKE ROAD

Fair

Over: STORMCASTLE CREEK

JUST PAST STORM CASTLE CG, Gallatin, MT

Built 1954 Load: 46.7 t ADT: 50

BUTTELMAN RD

Fair

Over: WILLOW CREEK 061

4M S WILLOW CREEK, Gallatin, MT

Built 1923 Load: 47.1 t ADT: 100

LINE CREEK ROAD

Fair

Over: STORMCASTLE CREEK

OFF SQ___ CREEK ROAD, Gallatin, MT

Built 1948 Load: 50.5 t ADT: 50

STORY HILL RD

Fair

Over: ROCKY CREEK

2M E BOZEMAN, Gallatin, MT

Built 2005 Load: 58.6 t ADT: 100

US 191

Fair

Over: GRAYLING CREEK

15M N WEST YELLOWSTONE, Gallatin, MT

Built 1962 Load: 89.8 t ADT: 2,481

US 191

Fair

Over: GRAYLING CREEK

16M N WEST YELLOWSTONE, Gallatin, MT

Built 1962 Load: 89.8 t ADT: 2,481

I 90

Fair

Over: WALKING PATH

BOZEMAN, Gallatin, MT

Built 2011 Load: 99.9 t ADT: 10,307

PORTAL CREEK ROAD

Good

Over: PORTAL CREEK

NO DATA ENTERED, Gallatin, MT

Built 2005 Load: 17.5 t ADT: 50

RED CLIFF CAMP RD

Good

Over: GALLATIN RIVER

RED CLIFF-GALLATIN CANYN, Gallatin, MT

Built 1968 Load: 17.8 t ADT: 99

BREEZE WAY ROAD

Good

Over: WILLOW CREEK 016

2M S WILLOW CREEK, Gallatin, MT

Built 2019 Load: 21.8 t ADT: 985

WILSON CREEK RD

Good

Over: IRRIGATION CANAL

4M S GALLATIN GATEWAY, Gallatin, MT

Built 2019 Load: 25.4 t ADT: 100

MILL CREEK ROAD

Good

Over: ANDERSON CREEK

NO DATA ENTERED, Gallatin, MT

Built 2009 Load: 26.9 t ADT: 40

BOZEMAN TRAIL RD

Good

Over: BEAR CREEK

2M SE BOZEMAN, Gallatin, MT

Built 2019 Load: 27.2 t ADT: 776

BOZEMAN CREEK ROAD

Good

Over: BOZEMAN CREEK

S. OF BOZEMAN, Gallatin, MT

Built 1965 Load: 27.2 t ADT: 40

AIRPORT RD

Good

Over: FERRIS DITCH

2M E BELGRADE, Gallatin, MT

Built 2022 Load: 29.5 t ADT: 3,662

GOLDENSTEIN LN

Good

Over: SOURDOUGH CREEK 053

1M S BOZEMAN, Gallatin, MT

Built 1982 Load: 29.9 t ADT: 100

BAXTER LANE E

Good

Over: HYALITE CREEK

5M W BOZEMAN, Gallatin, MT

Built 2019 Load: 30.8 t ADT: 4,679

GOOCH HILL ROAD

Good

Over: HYALITE CREEK 050

5M S BOZEMAN, Gallatin, MT

Built 2016 Load: 30.8 t ADT: 100

BEATTY RD

Good

Over: SOUTH DRY CREEK

2M SE FOUR CORNERS, Gallatin, MT

Built 2022 Load: 31.8 t ADT: 100

US 191 FH 42

Good

Over: TAYLOR FORK GALLATIN R

16M SE BIG SKY, Gallatin, MT

Built 1959 Load: 31.8 t ADT: 2,214

HAMILTON RD

Good

Over: REESE CREEK

8M NE BELGRADE, Gallatin, MT

Built 2020 Load: 32.7 t ADT: 100

Hatchery Facility

Good

Over: Bridger Creek

South of Maint. Buildings, Gallatin, MT

Built 2002 Load: 32.7 t ADT: 50

I 90

Good

Over: JEFFERSON RIVER

0.6M W THREE FORKS, Gallatin, MT

Built 1968 Load: 32.7 t ADT: 8,465

SWAMP RD

Good

Over: E GALLATIN RIVER 074

6M E MANHATTAN, Gallatin, MT

Built 2008 Load: 32.7 t ADT: 100

HYALITE ROAD

Good

Over: HYALITE CREEK

HYALITE CANYON, Gallatin, MT

Built 1988 Load: 33.0 t ADT: 99

HYALITE RD

Good

Over: EAST FORK HYALITE CREEK

HYALITE DRAINAGE, Gallatin, MT

Built 2013 Load: 35.0 t ADT: 40

DRY CREEK RD

Good

Over: DRY CREEK

13M N BELGRADE, Gallatin, MT

Built 2012 Load: 35.2 t ADT: 200

I 90

Good

Over: CAMP CREEK

1.9M E MANHATTAN, Gallatin, MT

Built 1965 Load: 36.3 t ADT: 9,601

DRY CREEK RD

Good

Over: DRY CREEK 119

9M N BELGRADE, Gallatin, MT

Built 2009 Load: 36.7 t ADT: 260

HYALITE ROAD

Good

Over: EAST FORK HYALITE CREEK

HYALITE DRAINAGE, Gallatin, MT

Built 2014 Load: 36.9 t ADT: 40

MONFORTON SCH RD

Good

Over: HYALITE CREEK 093

4M W BOZEMAN, Gallatin, MT

Built 2014 Load: 39.0 t ADT: 100

STORM CASTLE ROAD

Good

Over: FRENCH CREEK

STORM CASTLE CREEK, Gallatin, MT

Built 2014 Load: 39.9 t ADT: 40

NIXON GULCH ROAD

Good

Over: GALLATIN RIVER

2M NE MANHATTAN, Gallatin, MT

Built 2020 Load: 41.7 t ADT: 100

I 90

Good

Over: JEFFERSON RIVER

0.6M W THREE FORKS, Gallatin, MT

Built 1968 Load: 42.6 t ADT: 8,465

I 90

Good

Over: CAMP CREEK

1.9M E MANHATTAN, Gallatin, MT

Built 1965 Load: 44.5 t ADT: 9,601

I 90

Good

Over: BAKER CREEK

1.9M E MANHATTAN, Gallatin, MT

Built 1965 Load: 46.3 t ADT: 9,601

I 90

Good

Over: BAKER CREEK

1.9M E MANHATTAN, Gallatin, MT

Built 1965 Load: 46.3 t ADT: 9,601

CAMP CREEK RD

Good

Over: CAMP CREEK 017

AMSTERDAM, Gallatin, MT

Built 2002 Load: 49.0 t ADT: 100

AIRPORT RD

Good

Over: E GALLATIN RIVER 097

3M E BELGRADE, Gallatin, MT

Built 2012 Load: 49.2 t ADT: 100

TAYLOR FK. ROAD

Good

Over: TAYLOR FK. CREEK

TAYLOR FORK ROAD, Gallatin, MT

Built 1997 Load: 66.1 t ADT: 40

LONE MOUNTAIN TRL

Good

Over: N FK W GALLATIN RIV 005

4M W BIG SKY, Gallatin, MT

Built 1982 Load: 89.8 t ADT: 2,798

OLD TOWN RD

Poor

Over: JEFFERSON RIVER 063

2M N THREE FORKS, Gallatin, MT

Built 1894 Load: 5.4 t ADT: 100

MAIDEN ROCK RD

Poor

Over: BRIDGER CREEK 106

3M E BOZEMAN, Gallatin, MT

Built 1940 Load: 7.3 t ADT: 100

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
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.