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)

BOY SCOUT RD

Good

Over: CLEARWATER RIVER 083

4M NW SEELEY LAKE, Missoula, MT

Built 1964 Load: 30.8 t ADT: 100

AIRPORT RD

Good

Over: MORRELL CREEK 092

1M E SEELEY LAKE, Missoula, MT

Built 2009 Load: 30.8 t ADT: 100

FOREST ROAD

Good

Over: NORTH FORK COLD CREEK

NORTH FORK COLD CREEK, Missoula, MT

Built 2012 Load: 31.1 t ADT: 40

I 90

Good

Over: BLACK FOOT RIVER

0.6 M WEST BONNER, Missoula, MT

Built 2019 Load: 31.8 t ADT: 6,035

FOREST ROAD

Good

Over: CONDON CREEK

CONDON LOOP ROAD, Missoula, MT

Built 2010 Load: 31.8 t ADT: 40

SUNSET HILL RD

Good

Over: ELK CREEK 089

6M S CLEARWATER JCT, Missoula, MT

Built 1992 Load: 31.8 t ADT: 100

US 93

Good

Over: LOLO CREEK

LOLO, Missoula, MT

Built 1965 Load: 31.8 t ADT: 20,527

NO DATA ENTERED

Good

Over: CLEARWATER RIVER

NO DATA ENTERED, Missoula, MT

Built 2005 Load: 32.1 t ADT: 50

I 90

Good

Over: GRANT CREEK

RESERVE ST INT MISSOULA, Missoula, MT

Built 1965 Load: 32.7 t ADT: 22,894

I 90

Good

Over: ABANDONED RAILROAD

0.6M E BONNER, Missoula, MT

Built 1964 Load: 32.7 t ADT: 6,035

I 90 WB

Good

Over: ABANDONED RAILROAD

0.6M E BONNER, Missoula, MT

Built 1964 Load: 32.7 t ADT: 6,035

DEEP CREEK RD

Good

Over: DEEP CREEK 098

6M S FRENCHTOWN, Missoula, MT

Built 1983 Load: 32.7 t ADT: 3,077

BLUE MOUNTAIN ROAD

Good

Over: O`BRIEN CREEK 114

W OF MISSOULA, Missoula, MT

Built 1998 Load: 32.7 t ADT: 2,179

CARLTON CREEK RD

Good

Over: SIN-TIN-TIN-EM-SKA 102

6M S LOLO, Missoula, MT

Built 1985 Load: 32.7 t ADT: 396

MILL CREEK RD

Good

Over: LOLO CREEK 110

7M W LOLO, Missoula, MT

Built 1983 Load: 32.7 t ADT: 100

OLD GRANT CR RD

Good

Over: GRANT CREEK 112

6M N MISSOULA, Missoula, MT

Built 1979 Load: 32.7 t ADT: 100

WHITETAIL DR

Good

Over: MORRELL CREEK 007

0.5M S SEELEY LAKE, Missoula, MT

Built 1994 Load: 32.7 t ADT: 100

LINDBERGH RD

Good

Over: SWAN RIVER 065

19M N SEELEY LAKE, Missoula, MT

Built 1984 Load: 32.7 t ADT: 100

PROSPECT DR

Good

Over: GRANT CREEK 001

MISSOULA-PROSPECT DR, Missoula, MT

Built 1981 Load: 32.7 t ADT: 100

VINE ST

Good

Over: RATTLESNAKE CREEK 002

MISSOULA-VINE ST, Missoula, MT

Built 1945 Load: 32.7 t ADT: 2,144

PLACID LAKE RD

Good

Over: OWL CREEK 076

3M S SEELEY LAKE, Missoula, MT

Built 1970 Load: 33.5 t ADT: 100

FOREST ROAD

Good

Over: KRAFT CREEK

KRAFT CREEK, Missoula, MT

Built 1985 Load: 34.0 t ADT: 1

COTTONWOOD LAKES

Good

Over: TRAIL CREEK

TRAIL CREEK CROSSING, Missoula, MT

Built 2011 Load: 34.0 t ADT: 40

BIBLE LANE

Good

Over: PETTY CREEK

2M SE ALBERTON, Missoula, MT

Built 2020 Load: 34.5 t ADT: 3,077

US 93

Good

Over: WILDLIFE UPASS-FINLEY CR

12M N WYE INT, Missoula, MT

Built 2009 Load: 34.5 t ADT: 8,184

S FK PLACID CR RD

Good

Over: PLACID CR

SO FK PLACID, Missoula, MT

Built 1976 Load: 34.7 t ADT: 40

DONEY ROAD

Good

Over: FINLEY CREEK 013

5M S ARLEE, Missoula, MT

Built 2009 Load: 35.4 t ADT: 109

US 93

Good

Over: WILDLIFE CROSSING

9M N WYE INT, Missoula, MT

Built 2009 Load: 36.3 t ADT: 8,184

US 93

Good

Over: WILDLIFE UPASS-SCHLEY CR

12M N WYE INT, Missoula, MT

Built 2009 Load: 36.3 t ADT: 8,184

S ORANGE ST

Good

Over: PEDESTRIAN-BIKE PATH

MISSOULA-S ORANGE ST, Missoula, MT

Built 2002 Load: 36.3 t ADT: 22,614

PETTY CREEK ROAD

Good

Over: PETTY CREEK 117

9M S ALBERTON, Missoula, MT

Built 2013 Load: 36.6 t ADT: 388

FOREST ROAD

Good

Over: BEAVER CREEK

SALISH TRAPPER ROAD, Missoula, MT

Built 1970 Load: 36.9 t ADT: 5

0427: MCNAMARA ROA

Good

Over: Belmont Creek

8 mi NE of Johnsrud Rd /, Missoula, MT

Built 2020 Load: 37.6 t ADT: 25

N RUSSEL STREET

Good

Over: CLARK FORK RIVER

MISSOULA-RUSSELL STREET., Missoula, MT

Built 2020 Load: 39.0 t ADT: 17,245

E MULLAN RD

Good

Over: MILL CREEK

.18M SE FRENCHTOWN, Missoula, MT

Built 2020 Load: 39.0 t ADT: 100

PETTY CREEK RD

Good

Over: PETTY CREEK 038

5M S ALBERTON, Missoula, MT

Built 1990 Load: 42.6 t ADT: 388

US 93

Good

Over: WILDLIFE UNDERPASS

11M N WYE INT, Missoula, MT

Built 2009 Load: 42.6 t ADT: 8,184

US 93

Good

Over: WILDLIFE UNDERPASS

10M N WYE INT, Missoula, MT

Built 2009 Load: 50.8 t ADT: 8,184

US 93

Good

Over: WILDLIFE UNDERPASS

11M N WYE INT, Missoula, MT

Built 2009 Load: 56.2 t ADT: 8,184

FOREST ROAD

Good

Over: ELK CREEK

ELK CREEK ROAD, Missoula, MT

Built 1981 Load: 61.2 t ADT: 10

GILBERT CR. RD

Poor

Over: ROCK CREEK

VALLEY OF THE MOON, Missoula, MT

Built 1982 ADT: 50

BOY SCOUT RD

Poor

Over: CLEARWATER RIVER 082

2M NW SEELEY LAKE, Missoula, MT

Built 1938 Load: 2.7 t ADT: 100

SUNSET HILL RD

Poor

Over: BLACKFOOT RIVER 088

3M S CLEARWATER JCT, Missoula, MT

Built 1907 Load: 4.5 t ADT: 100

NORTH AVE W

Poor

Over: BITTERROOT RIVER 010

W MISSOULA, Missoula, MT

Built 1935 Load: 13.6 t ADT: 3,605

S 474

Poor

Over: RR

4M SE FRENCHTOWN, Missoula, MT

Built 1959 Load: 22.7 t ADT: 1,371

WAHLQUIST BR ROAD

Poor

Over: ROCK CREEK

AMBROSE ROCK CR, Missoula, MT

Built 1961 Load: 23.3 t ADT: 50

US 12 FH 11

Poor

Over: LOLO CREEK

LOLO HOT SPRINGS, Missoula, MT

Built 1957 Load: 25.4 t ADT: 747

I 90

Poor

Over: CLARK FORK RIVER

6.2M E ALBERTON, Missoula, MT

Built 1964 Load: 28.1 t ADT: 9,050

HWY 10 W

Poor

Over: NINEMILE SLIDE 026

3M W HUSON, Missoula, MT

Built 1947 Load: 29.9 t ADT: 140

FINLEY CR RD

Poor

Over: PLACID CR

FINLEY CR, Missoula, MT

Built 1959 Load: 30.5 t ADT: 50

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