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)

S 141

Fair

Over: HALFWAY CREEK

12M NW AVON, Powell, MT

Built 1936 Load: 29.0 t ADT: 1,564

W MILWAUKEE AVE

Fair

Over: CLARK FORK RIVER

DEER LODGE, Powell, MT

Built 1940 Load: 29.0 t ADT: 3,252

S FRONTAGE RD 011

Fair

Over: POWELL CREEK 063

2M S DEER LODGE, Powell, MT

Built 1930 Load: 29.9 t ADT: 899

I 90

Fair

Over: CLARK FORK RIVER

1.2M S DEER LODGE, Powell, MT

Built 1961 Load: 30.8 t ADT: 4,928

OVANDO HELMVILLE R

Fair

Over: N FK BLACKFOOT RIVER 005

13M N HELMVILLE, Powell, MT

Built 2000 Load: 30.8 t ADT: 50

US 12

Fair

Over: LITTLE BLACKFOOT RIVER

AVON, Powell, MT

Built 1982 Load: 30.8 t ADT: 2,794

US 12

Fair

Over: RR

GARRISON, Powell, MT

Built 1949 Load: 30.8 t ADT: 1,377

N.FK BLACKFT RD

Fair

Over: N FK BLACKFOOT RIV

NO DATA ENTERED, Powell, MT

Built 1960 Load: 31.8 t ADT: 40

N.FK BLACKFT RD

Fair

Over: LAKE CR

COPPER BLACKFOOT, Powell, MT

Built 1964 Load: 32.1 t ADT: 40

C.WOOD LAKES RD

Fair

Over: MORRELL CREEK

COTTONWOOD LAKES, Powell, MT

Built 1954 Load: 32.7 t ADT: 50

SAWMILL RD

Fair

Over: CLARK FORK RIVER 026

GARRISON, Powell, MT

Built 2006 Load: 32.7 t ADT: 77

RAYMOND RD

Fair

Over: BLACKFOOT RIVER 077

6M S OVANDO, Powell, MT

Built 1997 Load: 32.7 t ADT: 100

S 271

Fair

Over: NEVADA CREEK

1M NE HELMVILLE, Powell, MT

Built 1947 Load: 32.7 t ADT: 302

2801: CHAMBERLAIN

Fair

Over: East Fork Chamberlain Cr

38 MI W of Missoula, MT, Powell, MT

Built 2008 Load: 34.3 t ADT: 25

I 90

Fair

Over: CLARK FORK RIVER

1.2M S DEER LODGE, Powell, MT

Built 1961 Load: 35.4 t ADT: 4,928

MAIN ST

Fair

Over: CLARK FORK RIVER

S DEER LODGE, Powell, MT

Built 1949 Load: 35.6 t ADT: 2,287

ROAD

Fair

Over: RACETRACK CR

RACETRACK CREEK, Powell, MT

Built 1985 Load: 36.9 t ADT: 40

US 12

Fair

Over: LITTLE BLACKFOOT RIVER

GARRISON, Powell, MT

Built 1952 Load: 37.2 t ADT: 1,377

E SAGER LN

Fair

Over: CLARK FORK RIVER 048

5M S DEER LODGE, Powell, MT

Built 2006 Load: 39.0 t ADT: 100

US 12

Fair

Over: LITTLE BLACKFOOT RIVER

1M E ELLISTON, Powell, MT

Built 1988 Load: 40.8 t ADT: 3,311

BURNS ST

Fair

Over: LITTLE BLACKFOOT R 019

N ELLISTON, Powell, MT

Built 1960 Load: 41.7 t ADT: 276

NO DATA ENTERED

Fair

Over: LODGEPOLE CR

SPRUCE CR, Powell, MT

Built 1996 Load: 42.1 t ADT: 40

S MULLAN TRAIL RD

Fair

Over: CLARK FORK RIVER 030

9M E DRUMMOND, Powell, MT

Built 2003 Load: 43.4 t ADT: 100

CLARK ST

Fair

Over: COTTONWOOD CREEK 083

DEER LODGE-CLARK ST, Powell, MT

Built 2007 Load: 44.5 t ADT: 244

NO DATA ENTERED

Fair

Over: WEST FORK SPRUCE CREEK

NO DATA ENTERED, Powell, MT

Built 2020 Load: 68.0 t ADT: 50

NO DATA ENTERED

Fair

Over: EF SPRUCE CREEK

NO DATA ENTERED, Powell, MT

Built 2020 Load: 69.0 t ADT: 50

S MULLAN TRAIL RD

Fair

Over: RR 028

9M E DRUMMOND, Powell, MT

Built 2000 Load: 79.8 t ADT: 100

I 90

Fair

Over: DEMPSEY CREEK

N SAGER LANE OVERPASS, Powell, MT

Built 1973 Load: 99.9 t ADT: 10,571

LITTLE BLACKFOOT R

Good

Over: LITTLE BLACKFOOT RIVER

5M S ELLISTON, Powell, MT

Built 1981 ADT: 100

GREENHOUSE RD

Good

Over: DEMPSEY CREEK

5M S DEER LODGE, Powell, MT

Built 2000 ADT: 23

MT 141

Good

Over: THREEMILE CREEK

2 M N AVON, Powell, MT

Built 1961 ADT: 1,564

NFSR 314

Good

Over: TROUT CREEK

SPOTTED DOG-TROUT, Powell, MT

Built 2004 Load: 20.1 t ADT: 50

COTTONWOOD LK RD

Good

Over: COTTONWOOD CREEK

COTTONWOOD LAKES, Powell, MT

Built 2007 Load: 26.6 t ADT: 40

I 90

Good

Over: LITTLE BLACKFOOT RIVER

1.2M S GARRISON, Powell, MT

Built 1979 Load: 28.1 t ADT: 5,165

ROUTE 4106

Good

Over: KLONDIKE CREEK

NO DATA ENTERED, Powell, MT

Built 2013 Load: 28.2 t ADT: 40

SNOW SHOE CR RD

Good

Over: LITTLE BLACKFOOT R 017

3M E AVON, Powell, MT

Built 2001 Load: 29.2 t ADT: 46

ROUTE 4106

Good

Over: THEODORE

NO DATA ENTERED, Powell, MT

Built 2015 Load: 29.8 t ADT: 40

N OLD STAGE RD

Good

Over: ROCK CREEK 078

5M NW DEER LODGE, Powell, MT

Built 2007 Load: 29.9 t ADT: 100

MORRELL CREEK RD

Good

Over: MORRELL CREEK

MORRELL CR, Powell, MT

Built 2015 Load: 31.4 t ADT: 50

LOWER GAME RANGE R

Good

Over: COTTONWOOD CREEK 054

7M W OVANDO, Powell, MT

Built 1978 Load: 32.7 t ADT: 100

CENTER ST

Good

Over: COTTONWOOD CREEK 049

DEER LODGE-CENTER ST, Powell, MT

Built 2015 Load: 33.4 t ADT: 100

SECOND STREET

Good

Over: COTTONWOOD CREEK

DEER LODGE - SECOND STREE, Powell, MT

Built 2012 Load: 35.4 t ADT: 100

S FRONTAGE RD 011

Good

Over: ABANDONED RR 043

8M S DEER LODGE, Powell, MT

Built 2014 Load: 35.4 t ADT: 899

WILLOW ROAD

Good

Over: RACETRACK CREEK

7M SW DEERLODGE, Powell, MT

Built 2015 Load: 36.3 t ADT: 74

SAWMILL RD

Good

Over: ROCK CREEK 047

GARRISON, Powell, MT

Built 2006 Load: 36.3 t ADT: 100

NO DATA ENTERED

Good

Over: DUNHAM CREEK

NO DATA ENTERED, Powell, MT

Built 2020 Load: 36.9 t ADT: 50

MAIN ST

Good

Over: COTTONWOOD CREEK

DEER LODGE-MAIN ST, Powell, MT

Built 2014 Load: 37.2 t ADT: 4,979

NO DATA ENTERED

Good

Over: LODGEPOLE CR

SPRUCE CR, Powell, MT

Built 1996 Load: 37.3 t ADT: 40

NO DATA ENTERED

Good

Over: BLACKFOOT RIVER

NO DATA ENTERED, Powell, MT

Built 2011 Load: 39.2 t ADT: 31

BECK HILL RD

Good

Over: LITTLE BLACKFOOT R 023

3M E GARRISON, Powell, MT

Built 2011 Load: 39.9 t ADT: 48

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