Flathead County, MT

195 public highway bridges

Flathead County Bridge Snapshot

Flathead County, Montana contains 195 public highway bridges in the FHWA National Bridge Inventory. Roughly 27.7% are rated “Good,” 65.6% “Fair,” 4.6% “Poor,” and 4.6% 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.

195

Total Bridges

27.7%

Good

4.6%

Poor

4.6%

Structurally Deficient

Condition Distribution

Good

27.7% (54)

Fair

65.6% (128)

Poor

4.6% (9)

SD

4.6% (9)

All Bridges (195)

Sort:

US 93 ALTERNATE

Over: FOY'S LAKE ROAD

1 MILE W KALISPELL, Flathead, MT

Built 2021 ADT: 5,384

US 93

Over: CHURCH DRIVE

5M N KALISPELL, Flathead, MT

Built 2008 ADT: 100

US 93

Over: CHURCH DRIVE

5M N KALISPELL, Flathead, MT

Built 2008 ADT: 100

THREE MILE DR

Over: N-109

KALISPELL-THREE MILE DR, Flathead, MT

Built 2014 ADT: 21,520

FOREST ROAD

Over: DORIS CREEK

WEST SIDE SOUTHFORK, Flathead, MT

Built 1976 ADT: 500

FOREST ROAD

Over: TUNNEL CREEK

PAOLA CREEK AREA, Flathead, MT

Built 1924 ADT: 5

Forest Road

Over: RYLE CREEK

Ryle Creek, Flathead, MT

Built 2015 ADT: 50

FOREST ROAD

Over: COAL CREEK

COAL CREEK ROAD, Flathead, MT

Built 1964 ADT: 10

NORTH LAKE MCDONAL

Over: MCDONALD CREEK

11.3 miles northeast of U, Flathead, MT

Built 1965 Load: 7.3 t ADT: 1,451

OLD FORTSTEELTRAIL

Over: STILLWATER RIVER 082

6M NW OLNEY, Flathead, MT

Built 1988 Load: 11.8 t ADT: 138

IRR - US 2

Over: SNOWSLIDE GULCH

1M SE ESSEX, Flathead, MT

Built 1981 Load: 12.7 t ADT: 1,929

GIEFER CREEK RD

Over: GEIFER CREEK 095

18M W EAST GLACIER, Flathead, MT

Built 1976 Load: 14.5 t ADT: 100

TRUMAN CR RD

Over: TRUMAN CREEK 172

14M W KALISPELL, Flathead, MT

Built 2008 Load: 14.5 t ADT: 100

CONRAD RD

Over: STILLWATER RIVER

1M E KALISPELL, Flathead, MT

Built 1980 Load: 14.5 t ADT: 6,337

FOREST ROAD

Over: SPOTTED BEAR RIVER

SPOTTED BEAR RANGER STA., Flathead, MT

Built 1967 Load: 15.9 t ADT: 130

ROGERS LAKE RD

Over: ASHLEY CREEK 098

5M SE MARION, Flathead, MT

Built 1999 Load: 16.3 t ADT: 100

FOYS BEND LN

Over: ASHLEY CREEK 003

2M SE KALISPELL, Flathead, MT

Built 2001 Load: 16.5 t ADT: 100

GOING-TO-THE-SUN R

Over: AVALANCHE CREEK

17 miles northeast of U.S, Flathead, MT

Built 1935 Load: 17.2 t ADT: 1,230

OLD US 2 E

Over: ABBOT CREEK 063

MARTIN CITY, Flathead, MT

Built 1931 Load: 17.2 t ADT: 100

IRR - US 2

Over: BEAR CREEK

5M SE ESSEX, Flathead, MT

Built 1966 Load: 17.2 t ADT: 1,929

IRR - US 2

Over: BEAR CREEK

4M SW SUMMIT, Flathead, MT

Built 1966 Load: 17.2 t ADT: 1,929

BAKER AVE

Over: WHITEFISH RIVER 113

WHITEFISH-BAKER AVE, Flathead, MT

Built 1977 Load: 17.8 t ADT: 5,913

INSIDE NORTH FORK

Over: BOWMAN CREEK

2 Mi. N. of Jct. Hwy. 2 &, Flathead, MT

Built 1965 Load: 19.0 t ADT: 50

INSIDE NORTH FORK

Over: KINTLA CREEK

2 Mi. N. of Jct. Hwy. 2 &, Flathead, MT

Built 1965 Load: 19.0 t ADT: 50

FOREST ROAD

Over: ADDITION CREEK

ADDITION CREEK, Flathead, MT

Built 1962 Load: 19.1 t ADT: 40

IRR - US 2

Over: MIDDLE FORK FLATHEAD RIV

ESSEX, Flathead, MT

Built 2002 Load: 19.1 t ADT: 1,929

SUNDAY CR ROAD

Over: SUNDAY CR

SUNDAY CR, Flathead, MT

Built 1982 Load: 19.4 t ADT: 40

ASHLEY LAKE RD

Over: ASHLEY CREEK 096

7M NE MARION, Flathead, MT

Built 1999 Load: 19.8 t ADT: 151

FOREST ROAD

Over: HALL CREEK

SWAN LAKE CAMPGROUND, Flathead, MT

Built 1997 Load: 20.4 t ADT: 50

LOOKOUT CREEK RD

Over: BIG CREEK

1 MI FROM BIG CREEK RD, Flathead, MT

Built 1962 Load: 20.7 t ADT: 10

CAMAS ROAD

Over: NORTH FORK FLATHEAD RIVE

2 miles north of U.S. Rou, Flathead, MT

Built 1964 Load: 20.9 t ADT: 560

FISH CREEK CAMPGRO

Over: FISH CREEK

2 miles north of U.S. Rou, Flathead, MT

Built 1963 Load: 20.9 t ADT: 100

S 35

Over: SWAN RIVER

BIG FORK, Flathead, MT

Built 1954 Load: 20.9 t ADT: 9,074

RD 895

Over: SULLIVAN CREEK

SULLIVAN CR, Flathead, MT

Built 1952 Load: 21.4 t ADT: 40

JP RD

Over: WHITEFISH RIVER 154

2M SE WHITEFISH, Flathead, MT

Built 1985 Load: 21.8 t ADT: 3,186

E EVERGREEN DR

Over: SPRING CREEK

KALISPELL-E EVERGREEN DR, Flathead, MT

Built 1938 Load: 21.8 t ADT: 2,857

DERN RD

Over: ASHLEY CREEK 005

1M W KALISPELL, Flathead, MT

Built 2005 Load: 22.7 t ADT: 100

E COTTONWOOD DR

Over: SPRING CREEK 150

KALISPELL-E COTTONWOOD DR, Flathead, MT

Built 1991 Load: 22.7 t ADT: 100

SECOND ST

Over: WHITEFISH RIVER

WHITEFISH-SECOND ST, Flathead, MT

Built 2013 Load: 22.7 t ADT: 11,535

S 65

Over: MIDDLE FK FLATHEAD RIVER

WEST GLACIER, Flathead, MT

Built 1966 Load: 22.7 t ADT: 5,293

TWIN BRIDGES RD

Over: STILLWATER RIVER

5M SW WHITEFISH, Flathead, MT

Built 1988 Load: 22.7 t ADT: 1,990

GRAVES CREEK ROAD

Over: THOMA CREEK

5.6 MI WEST NORTH FORK RD, Flathead, MT

Built 1964 Load: 23.0 t ADT: 10

DELREY RD

Over: SWIFT CREEK 072

7M NW WHITEFISH, Flathead, MT

Built 1935 Load: 23.6 t ADT: 100

W VALLEY DR

Over: ASHLEY CREEK 170

1M W KALISPELL, Flathead, MT

Built 1970 Load: 23.6 t ADT: 100

S 556-THOMPSON R R

Over: THOMPSON RIVER

25M SW MARION, Flathead, MT

Built 1994 Load: 23.6 t ADT: 60

FOREST ROAD

Over: SKYLAND CREEK

SKYLAND CREEK AREA, Flathead, MT

Built 1963 Load: 23.7 t ADT: 20

RED MDW CR ROAD

Over: CHAIN CREEK

2 MI E RED MDW LAKE, Flathead, MT

Built 1966 Load: 24.0 t ADT: 10

FOREST ROAD

Over: RED MEADOW CREEK

9 MI W OF NORTH FORK RD, Flathead, MT

Built 1966 Load: 24.0 t ADT: 20

GOING-TO-THE-SUN R

Over: LOGAN CREEK

21.5 miles northeast of U, Flathead, MT

Built 1925 Load: 24.5 t ADT: 1,230

GOING-TO-THE-SUN R

Over: DRY RAVINE

31 miles northeast of U.S, Flathead, MT

Built 1934 Load: 24.5 t ADT: 1,942

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026