Deer Lodge County, MT

68 public highway bridges

Deer Lodge County Bridge Snapshot

Deer Lodge County, Montana contains 68 public highway bridges in the FHWA National Bridge Inventory. Roughly 23.5% are rated “Good,” 58.8% “Fair,” 5.9% “Poor,” and 5.9% 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.

68
Total Bridges
23.5%
Good
5.9%
Poor
5.9%
Structurally Deficient

Condition Distribution

Good
23.5% (16)
Fair
58.8% (40)
Poor
5.9% (4)
SD
5.9% (4)

All Bridges (68)

S 43

Good

Over: LAMARCHE CREEK

14M NW WISE RIVER, Deer Lodge, MT

Built 1941 Load: 24.5 t ADT: 454

I 90

Good

Over: CLARK FORK RIVER

2.5M N OPPORTUNITY, Deer Lodge, MT

Built 1978 Load: 26.3 t ADT: 5,053

S 43

Good

Over: FISHTRAP CREEK

16M NW WISE RIVER, Deer Lodge, MT

Built 1941 Load: 29.0 t ADT: 454

STUMPTOWN RD

Good

Over: WARM SPRINGS CREEK 006

4M NW ANACONDA, Deer Lodge, MT

Built 2015 Load: 32.7 t ADT: 85

FDR2488

Good

Over: NO DATA ENTERED

NO DATA ENTERED, Deer Lodge, MT

Built 1994 Load: 35.3 t ADT: 20

FDR 2469

Good

Over: NO DATA ENTERED

SEYMOUR CR., Deer Lodge, MT

Built 1994 Load: 36.0 t ADT: 20

GAS CITY RD

Good

Over: CLARK FORK RIVER 019

1M E WARM SPRINGS, Deer Lodge, MT

Built 2011 Load: 36.3 t ADT: 100

CRACKERVILLE RD

Good

Over: SILVERBOW CREEK 002

4M S OPPORTUNITY, Deer Lodge, MT

Built 2014 Load: 36.3 t ADT: 515

WILLOW GLEN RD

Good

Over: MILL CREEK 004

1M W OPPORTUNITY, Deer Lodge, MT

Built 2015 Load: 37.2 t ADT: 252

COUNTY RD 306

Good

Over: TWIN LAKES CREEK 094

8M W ANACONDA, Deer Lodge, MT

Built 2013 Load: 38.1 t ADT: 100

S 569

Good

Over: FRENCH GULCH 042

19M SW ANACONDA, Deer Lodge, MT

Built 2015 Load: 39.0 t ADT: 288

S 596

Good

Over: BIG CALIFORNIA CREEK

15M S ANACONDA, Deer Lodge, MT

Built 2019 Load: 39.9 t ADT: 288

NO DATA ENTERED

Good

Over: WARM SPRINGS CR

HIGHWAY ENTERANCE TO AJC, Deer Lodge, MT

Built 1979 Load: 46.7 t ADT: 50

NO DATA ENTERED

Good

Over: STORM LAKE CREEK

NO DATA ENTERED, Deer Lodge, MT

Built 2011 Load: 65.4 t ADT: 10

MT EVANS WAY

Poor

Over: WARM SPRINGS CREEK 016

WARM SPRINGS, Deer Lodge, MT

Built 1912 Load: 4.5 t ADT: 100

COUNTY ROAD 098

Poor

Over: CLARK FORK RIVER 020

2M N WARM SPRINGS, Deer Lodge, MT

Built 1920 Load: 12.7 t ADT: 100

NO DATA ENTERED

Poor

Over: E FK FISHTRAP

E FK FISHTRAP, Deer Lodge, MT

Built 1973 Load: 24.0 t ADT: 20

NO DATA ENTERED

Poor

Over: FOSTER CR

NORTH END OF AJC, Deer Lodge, MT

Built 1952 Load: 24.3 t ADT: 50

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

Related

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