Park County, MT

124 public highway bridges

Park County Bridge Snapshot

Park County, Montana contains 124 public highway bridges in the FHWA National Bridge Inventory. Roughly 20.2% are rated “Good,” 52.4% “Fair,” 9.7% “Poor,” and 9.7% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MT are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

124
Total Bridges
20.2%
Good
9.7%
Poor
9.7%
Structurally Deficient

Condition Distribution

Good
20.2% (25)
Fair
52.4% (65)
Poor
9.7% (12)
SD
9.7% (12)

All Bridges (124)

I 90

Good

Over: PETERSON CREEK

5M W SPRINGDALE, Park, MT

Built 1987 Load: 28.8 t ADT: 5,692

COUNTY ROAD 280,

Good

Over: SODA BUTTE CREEK

SILVER GATE, Park, MT

Built 2022 Load: 30.1 t ADT: 100

BANNOCK TRAIL

Good

Over: WYOMING CREEK

1M E SILVER GATE, Park, MT

Built 2022 Load: 30.5 t ADT: 100

I 90

Good

Over: MISSION CREEK-INT RAMP

9.9M E LIVINGSTON, Park, MT

Built 1987 Load: 30.8 t ADT: 53

ROCK CREEK RD N

Good

Over: ROCK CREEK 029

9M E CLYDE PARK, Park, MT

Built 2015 Load: 32.7 t ADT: 100

FRONTAGE RD E 448

Good

Over: MISSION CREEK 002

8M NE LIVINGSTON, Park, MT

Built 1987 Load: 32.7 t ADT: 99

S YELLOWSTONE ST

Good

Over: FLESHMAN CREEK 071

LIVINGSTON-SACAGAWEA PARK, Park, MT

Built 1939 Load: 32.7 t ADT: 100

CONVICT GRADE RD

Good

Over: SHEILDS RIVER

6M NE OF LIVINGSTON, Park, MT

Built 2019 Load: 35.4 t ADT: 100

SODA CR TR-REPUBLI

Good

Over: WOODY CREEK

COOKE CITY, Park, MT

Built 2022 Load: 35.6 t ADT: 100

MURPHY LN

Good

Over: IRRIGATION CANAL 003

E EMIGRANT, Park, MT

Built 2003 Load: 36.3 t ADT: 1,444

S 540-E RIVER RD

Good

Over: SIX MILE CREEK

6M SW PRAY, Park, MT

Built 2006 Load: 39.9 t ADT: 257

OLD YELLOWSTONE TR

Good

Over: ROCK CREEK

18 M NW GARDINER, Park, MT

Built 2018 Load: 53.5 t ADT: 100

SWINGLEY RD

Poor

Over: W BOULDER RIVER 038

18M E LIVINGSTON, Park, MT

Built 1938 Load: 4.5 t ADT: 52

POTTER CREEK RD

Poor

Over: POTTER CREEK 005

1M N WILSALL, Park, MT

Built 1915 Load: 9.1 t ADT: 100

ELK CREEK RD

Poor

Over: SHIELDS RIVER 018

3M NE WILSALL, Park, MT

Built 1960 Load: 12.7 t ADT: 100

SHIELDS RIVER RD E

Poor

Over: SHIELDS RIVER 023

8M NE LIVINGSTON, Park, MT

Built 1923 Load: 14.5 t ADT: 100

STATION ROAD

Poor

Over: BOULDER RIVER

BOX CANYON ADMIN SITE, Park, MT

Built 1947 Load: 15.6 t ADT: 1

SHIELDS RIVER RD E

Poor

Over: SHIELDS RIVER OVERFL 022

8M NE LIVINGSTON, Park, MT

Built 1938 Load: 20.0 t ADT: 100

TEMPLED HILLS RD.

Poor

Over: MILL CREEK

S. OF LIVINGSTON, Park, MT

Built 1952 Load: 20.7 t ADT: 50

BIG CREEK ROAD

Poor

Over: BIG CREEK

S. OF LIVINGSTON, Park, MT

Built 1961 Load: 21.7 t ADT: 50

NF-6639 RD

Poor

Over: BOULDER RIVER 041

35M S SPRINGDALE, Park, MT

Built 1933 Load: 24.5 t ADT: 156

SWANDAL RD

Poor

Over: FLATHEAD CREEK 073

3M W WILSALL, Park, MT

Built 1970 Load: 25.1 t ADT: 100

MAIN BOULDER ROAD

Structurally Deficient

Over: BOULDER RIVER

38 M SOUTH OF SPRINGDALE, Park, MT

Built 1950 ADT: 156

HAMMOND CREEK RD

Structurally Deficient

Over: ROCK CREEK 025

5M E CLYDE PARK, Park, MT

Built 1967 Load: 10.9 t ADT: 100

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial