Powell County, MT

112 public highway bridges

Powell County Bridge Snapshot

Powell County, Montana contains 112 public highway bridges in the FHWA National Bridge Inventory. Roughly 25.9% are rated “Good,” 46.4% “Fair,” 4.5% “Poor,” and 4.5% 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.

112

Total Bridges

25.9%

Good

4.5%

Poor

4.5%

Structurally Deficient

Condition Distribution

Good

25.9% (29)

Fair

46.4% (52)

Poor

4.5% (5)

SD

4.5% (5)

All Bridges (112)

Sort:

I 90

Over: INT JENS

8M E DRUMMOND, Powell, MT

Built 1959 ADT: 100

I 90

Over: INT JENS

8M E DRUMMOND, Powell, MT

Built 1959 ADT: 100

I 90 EB

Over: INT GOLD CREEK

GOLD CREEK, Powell, MT

Built 1959 ADT: 237

I 90 WB

Over: INT GOLD CREEK

GOLD CREEK, Powell, MT

Built 1959 ADT: 237

I 90

Over: INT PHOSPHATE

3.7M W GARRISON, Powell, MT

Built 1973 ADT: 100

I 90

Over: INT PHOSPHATE

3.7M W GARRISON, Powell, MT

Built 1973 ADT: 100

I 90

Over: SEP GARRISON FRONTAGE RD

2.5M W GARRISON, Powell, MT

Built 1973 ADT: 100

I 90

Over: SEP GARRISON FRONTAGE RD

2.5M W GARRISON, Powell, MT

Built 1973 ADT: 100

I 90

Over: INT W GARRISON-RR

GARRISON, Powell, MT

Built 1979 ADT: 766

I 90

Over: INT W GARRISISON-RR

GARRISON, Powell, MT

Built 1979 ADT: 1,671

I 90

Over: INT E GARRISON-RR

1.2M S GARRISON, Powell, MT

Built 1979 ADT: 1,377

I 90

Over: INT E GARRISON-RR

1.2M S GARRISON, Powell, MT

Built 1979 ADT: 1,377

I 90

Over: JR GRADE SEP

6.2M N DEER LODGE, Powell, MT

Built 1961 ADT: 100

I 90

Over: JR GRADE SEP

6.2M N DEER LODGE, Powell, MT

Built 1961 ADT: 100

I 90

Over: INT N DEER LODGE

1.2M N DEER LODGE, Powell, MT

Built 1961 ADT: 100

I 90

Over: INT N DEER LODGE

1.2M N DEER LODGE, Powell, MT

Built 1974 ADT: 100

I 90

Over: SEP MILWAUKEE AVENUE

DEER LODGE, Powell, MT

Built 1961 ADT: 100

I 90

Over: SEP MILWAUKEE AVENUE

DEER LODGE, Powell, MT

Built 1974 ADT: 100

I 90

Over: SEP EASTSIDE ROAD

0.6M S DEER LODGE, Powell, MT

Built 1961 ADT: 35

I 90

Over: SEP EASTSIDE ROAD

0.6M S DEER LODGE, Powell, MT

Built 1974 ADT: 35

I 90

Over: SEP SAGER LANE

5M S DEER LODGE, Powell, MT

Built 1975 ADT: 100

I 90

Over: SEP SAGER LANE

5M S DEER LODGE, Powell, MT

Built 1975 ADT: 100

RACE TRACK RD

Over: INT RACETRACK-I 90 001

8M S DEER LODGE, Powell, MT

Built 1978 ADT: 5,286

BECK HILL RD

Over: INT BECKHILL I 90 008

4M SE GARRISON, Powell, MT

Built 1978 ADT: 5,165

US 12

Over: LITTLE BLACKFOOT RIV-RR

5M E GARRISON, Powell, MT

Built 2009 ADT: 100

RAMP TO MAIN ST

Over: INT S DEER LODGE-I 90

1M S DEER LODGE, Powell, MT

Built 1961 ADT: 5,286

E SAGER LANE

Over: IRRIGATION CANAL

5M S DEER LODGE, Powell, MT

Built 1990 ADT: 100

TROUT CREEK RD

Over: LITTLE BLACKFOOT R 018

AVON, Powell, MT

Built 1908 Load: 10.9 t ADT: 100

NO DATA ENTERED

Over: MONTURE CREEK

COTTONWOOD LAKES, Powell, MT

Built 1953 Load: 16.2 t ADT: 50

DRY GULCH RD

Over: N FORK BLACKFOOT R 007

5M E OVANDO, Powell, MT

Built 1968 Load: 16.3 t ADT: 100

KOHRS ST

Over: COTTONWOOD CREEK 065

DEER LODGE-KOHRS ST, Powell, MT

Built 2003 Load: 17.2 t ADT: 100

GOLD CREEK RD

Over: CLARK FORK RIVER 032

GOLD CREEK, Powell, MT

Built 1982 Load: 18.1 t ADT: 237

OVANDO HELMVILLE R

Over: BIG BLACKFOOT RIVER 006

6M N HELMVILLE, Powell, MT

Built 1953 Load: 19.1 t ADT: 50

YELLOWSTONE TRAIL

Over: RACETRACK CREEK 036

2M W RACETRACK, Powell, MT

Built 2006 Load: 20.0 t ADT: 100

ROCK CREEK CATTLE

Over: CLARK FORK RIVER 038

5M N DEER LODGE, Powell, MT

Built 1989 Load: 21.8 t ADT: 275

ROCK CREEK CATTLE

Over: CLARK FORK RIVER 03

5M N DEER LODGE, Powell, MT

Built 1989 Load: 21.8 t ADT: 275

S FRONTAGE RD 011

Over: RACETRACK CREEK 067

7M S DEER LODGE, Powell, MT

Built 1930 Load: 21.8 t ADT: 899

S 200

Over: MONTURE CREEK

3M NW OVANDO, Powell, MT

Built 1986 Load: 22.7 t ADT: 2,627

S FRONTAGE RD 011

Over: DEMPSEY CREEK 059

5M S DEER LODGE, Powell, MT

Built 1930 Load: 23.6 t ADT: 899

S 141

Over: BLACKFOOT RIVER

7M NE HELMVILLE, Powell, MT

Built 2004 Load: 23.6 t ADT: 1,643

NO DATA ENTERED

Over: NO DATA ENTERED

NO DATA ENTERED, Powell, MT

Built 2010 Load: 24.0 t ADT: 40

US 12

Over: LITTLE BLACKFOOT RIVER

1M W AVON, Powell, MT

Built 1982 Load: 26.3 t ADT: 3,129

LITTLE BLACKFOOT R

Over: LITTLE BLACKFOOT R 021

3M S ELLISTON, Powell, MT

Built 1976 Load: 27.2 t ADT: 100

CUT OFF RD

Over: BIG BLACKFOOT RIVER 002

4M NW HELMVILLE, Powell, MT

Built 1955 Load: 27.2 t ADT: 100

S 141

Over: STOCKPASS-DRAINAGE

2M SE HELMSVILLE, Powell, MT

Built 1965 Load: 27.2 t ADT: 1,382

I 90

Over: LITTLE BLACKFOOT RIVER

1.2M S GARRISON, Powell, MT

Built 1979 Load: 28.1 t ADT: 5,165

RIVER JUNCTION/ SC

Over: BLACKFOOT RIVER 004

6M W OVANDO, Powell, MT

Built 1994 Load: 28.1 t ADT: 100

TELEGRAPH CR RD

Over: TELEGRAPH CREEK 061

4M S ELLISTON, Powell, MT

Built 1950 Load: 28.2 t ADT: 100

2864: BRAZIEL CR.

Over: NEVADA CREEK

0.2 mi S of MT141, Powell, MT

Built 1977 Load: 28.5 t ADT: 25

S 200

Over: N FORK BLACKFOOT RIVER

4M SE OVANDO, Powell, MT

Built 1956 Load: 29.0 t ADT: 2,663

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