Missoula County, MT

205 public highway bridges

Missoula County Bridge Snapshot

Missoula County, Montana contains 205 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.8% are rated “Good,” 41.5% “Fair,” 7.3% “Poor,” and 7.3% 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.

205
Total Bridges
28.8%
Good
7.3%
Poor
7.3%
Structurally Deficient

Condition Distribution

Good
28.8% (59)
Fair
41.5% (85)
Poor
7.3% (15)
SD
7.3% (15)

All Bridges (205)

I 90

Fair

Over: CLARK FORK RIVER

1.9M W BONNER, Missoula, MT

Built 1965 Load: 32.7 t ADT: 9,994

W NINEMILE RD

Fair

Over: NINEMILE CREEK 030

8M NW FRENCHTOWN, Missoula, MT

Built 1975 Load: 32.7 t ADT: 477

PLACID LAKE RD

Fair

Over: CLEARWATER RIVER 078

3M S SEELEY LAKE, Missoula, MT

Built 1970 Load: 32.7 t ADT: 100

SAWMILL GULCH RD

Fair

Over: RATTLESNAKE CREEK 017

3M N MISSOULA, Missoula, MT

Built 1989 Load: 32.7 t ADT: 100

PINERIDGE RD

Fair

Over: HOLLAND CREEK 054

7M S CONDON, Missoula, MT

Built 1978 Load: 32.7 t ADT: 100

PINERIDGE RD

Fair

Over: SWAN RIVER 055

7M S CONDON, Missoula, MT

Built 1977 Load: 32.7 t ADT: 100

GUEST RANCH RD

Fair

Over: SWAN RIVER 056

1.5M S CONDON, Missoula, MT

Built 1978 Load: 32.7 t ADT: 100

MALLARD WAY

Fair

Over: FRENCHTOWN CANAL 100

10M NW MISSOULA, Missoula, MT

Built 1975 Load: 32.7 t ADT: 100

EXPRESSWAY RD

Fair

Over: GRANT CREEK 003

MISSOULA-EXPRESSWAY RD, Missoula, MT

Built 1981 Load: 32.7 t ADT: 7,797

INTERNATIONAL DR

Fair

Over: GRANT CREEK 005

MISSOULA-INTERNATIONAL DR, Missoula, MT

Built 1981 Load: 32.7 t ADT: 100

ELK FLATS RD

Fair

Over: ELK CREEK 115

W OF CONDON, Missoula, MT

Built 1996 Load: 33.6 t ADT: 100

EXPO PKWY

Fair

Over: GRANT CREEK 117

MISSOULA-EXPO PKWY, Missoula, MT

Built 1997 Load: 34.0 t ADT: 100

S 200

Fair

Over: BLACKFOOT RIVER

10M NE POTOMAC, Missoula, MT

Built 1947 Load: 35.4 t ADT: 3,825

MULLAN RD

Fair

Over: FRENCH DITCH

5M W MISSOULA, Missoula, MT

Built 1982 Load: 35.4 t ADT: 3,120

SPOOK LAKE RD

Fair

Over: OWL CREEK

SPOOK LAKE, Missoula, MT

Built 1980 Load: 36.0 t ADT: 50

0427: MCNAMARA ROA

Fair

Over: Blackfoot River

21 mi E of Missoula, MT, Missoula, MT

Built 1964 Load: 36.3 t ADT: 25

KONA RANCH RD

Fair

Over: CLARK FORK 011

8M W MISSOULA, Missoula, MT

Built 1987 Load: 36.3 t ADT: 100

GILLESPIE SLIDEROC

Fair

Over: CLARK FORK

GILLESPIE-SLIDEROCK, Missoula, MT

Built 1965 Load: 37.6 t ADT: 50

STYLER DR

Fair

Over: GLACIER CR OVRFLOW 060

2M SW CONDON, Missoula, MT

Built 1974 Load: 38.1 t ADT: 100

S 200

Fair

Over: BLACKFOOT RIVER

4M E BONNER, Missoula, MT

Built 1968 Load: 38.1 t ADT: 4,601

S 200

Fair

Over: CLEARWATER RIVER

CLEARWATER JCT, Missoula, MT

Built 1949 Load: 38.1 t ADT: 3,070

KRAFT CREEK RD

Fair

Over: GLACIER CREEK

KRAFT CK RD AT GLACIER CK, Missoula, MT

Built 2019 Load: 38.2 t ADT: 10

COLD CREEK RD

Fair

Over: SWAN RIVER 045

1M N CONDON, Missoula, MT

Built 1954 Load: 39.9 t ADT: 100

I 90

Fair

Over: CLARK FORK RIVER

5M E ALBERTON, Missoula, MT

Built 1979 Load: 43.5 t ADT: 4,525

S 200

Fair

Over: BLACKFOOT RIVER

1M W BONNER, Missoula, MT

Built 2009 Load: 43.5 t ADT: 8,131

IRR - US 93

Fair

Over: RR-FINLEY CREEK

14M N MISSOULA, Missoula, MT

Built 2009 Load: 44.5 t ADT: 8,184

EAST FK LOLO CR

Fair

Over: LOLO CREEK

EAST FK LOLO, Missoula, MT

Built 1946 Load: 47.0 t ADT: 50

FOREST ROAD

Fair

Over: GLACIER CREEK

ELK CREEK ROAD, Missoula, MT

Built 1981 Load: 55.4 t ADT: 10

IRR BIA RTE 1015

Fair

Over: HICKS CREEK

26 KM EAST OF ARLEE, Missoula, MT

Built 2001 Load: 59.9 t ADT: 20

US 93

Fair

Over: WILDLIFE UNDERPASS

10M N WYE JCT, Missoula, MT

Built 2009 Load: 64.4 t ADT: 8,184

S HOLLAND LAKE RD

Fair

Over: HOLLAND CREEK 051

HOLLAND LAKE, Missoula, MT

Built 1949 Load: 72.6 t ADT: 100

WISE RIVER RD

Good

Over: MILLER CREEK 116

MISSOULA, Missoula, MT

Built 2002 Load: 11.8 t ADT: 100

ELK CREEK RD

Good

Over: ELK CREEK 113

12M S CLEARWATER JCT, Missoula, MT

Built 2005 Load: 16.2 t ADT: 100

0402: CAP WALLACE

Good

Over: ELK CREEK

2 mi S of Sunset Hill Rd, Missoula, MT

Built 1991 Load: 17.5 t ADT: 25

S 83 FH 15

Good

Over: MORRELL CREEK

SEELEY LAKE, Missoula, MT

Built 1950 Load: 20.0 t ADT: 2,580

FOREST ROAD

Good

Over: KRAFT CREEK

KRAFT CREEK ROAD, Missoula, MT

Built 2004 Load: 22.4 t ADT: 40

DEER CREEK RD

Good

Over: CLARK FORK RIVER 11

2M E MISSOULA, Missoula, MT

Built 1975 Load: 23.6 t ADT: 1,442

COUNTY ROAD

Good

Over: COLD CREEK

COLD CREEK ROAD, Missoula, MT

Built 2012 Load: 23.7 t ADT: 40

NO DATA ENTERED

Good

Over: BUTLER CR

KENNEDY RIDGE, Missoula, MT

Built 1980 Load: 24.6 t ADT: 40

LOISELLE LN

Good

Over: FRENCHTOWN IRR CANAL 099

3M S FRENCHTOWN, Missoula, MT

Built 1960 Load: 25.4 t ADT: 201

SS-11A

Good

Over: SWAN RIVER 111

LINDBERGH LAKE ROAD, Missoula, MT

Built 1978 Load: 25.5 t ADT: 100

ROAD 4209

Good

Over: NORTH CREEK

NORTH CREEK, Missoula, MT

Built 2008 Load: 26.2 t ADT: 40

DESCHAMPS LN

Good

Over: LAVALLE CREEK 022

8M NW MISSOULA, Missoula, MT

Built 2009 Load: 27.2 t ADT: 669

US 12 FH 11

Good

Over: LOLO CREEK

1M S LOLO HOT SPRINGS, Missoula, MT

Built 1951 Load: 27.2 t ADT: 746

FOREST ROAD

Good

Over: NORTH FORK COLD CREEK

NORTH FORK COLD CREEK, Missoula, MT

Built 2012 Load: 28.5 t ADT: 40

FOREST ROAD

Good

Over: BEAVER CREEK

BEAVER CREEK ROAD, Missoula, MT

Built 2015 Load: 28.8 t ADT: 40

NFSR

Good

Over: SMITH CREEK

CONDON, Missoula, MT

Built 2010 Load: 29.5 t ADT: 40

NO DATA ENTERED

Good

Over: MCCORMICK CR

MCCORMICK CR, Missoula, MT

Built 1973 Load: 29.8 t ADT: 40

MARSHALL LAKE RD

Good

Over: W FK CLEARWATER

MARSHALL LK, Missoula, MT

Built 2008 Load: 30.5 t ADT: 50

GOLD RIDGE ROAD

Good

Over: GOLD CREEK

NO DATA ENTERED, Missoula, MT

Built 2013 Load: 30.8 t ADT: 40

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