Carter County, MT

39 public highway bridges

Carter County Bridge Snapshot

Carter County, Montana contains 39 public highway bridges in the FHWA National Bridge Inventory. Roughly 33.3% are rated “Good,” 61.5% “Fair,” 5.1% “Poor,” and 5.1% 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.

39
Total Bridges
33.3%
Good
5.1%
Poor
5.1%
Structurally Deficient

Condition Distribution

Good
33.3% (13)
Fair
61.5% (24)
Poor
5.1% (2)
SD
5.1% (2)

All Bridges (39)

MILES CITY CUTOFF

Fair

Over: LITTLE BEAVER CREEK 004

4M NW EKALAKA, Carter, MT

Built 1987 Load: 4.5 t ADT: 100

COTTONWOOD CR RD

Fair

Over: N COTTONWOOD CREEK 037

17M NW ALZADA, Carter, MT

Built 1938 Load: 10.0 t ADT: 100

COTTONWOOD CR RD

Fair

Over: WILLOW CREEK 020

8M NW ALZADA, Carter, MT

Built 1986 Load: 11.7 t ADT: 100

S 323

Fair

Over: BOX ELDER CREEK

17M SE EKALAKA, Carter, MT

Built 1957 Load: 17.2 t ADT: 314

MOORE RD

Fair

Over: CROW CREEK 034

21M NW HAMMOND, Carter, MT

Built 1938 Load: 19.5 t ADT: 100

CENTRAL AVE

Fair

Over: RUSSELL CREEK 001

EKALAKA-CENTRAL AVE, Carter, MT

Built 1938 Load: 23.6 t ADT: 100

S 7

Fair

Over: FLASTED DRAW

5M NE EKALAKA, Carter, MT

Built 1940 Load: 23.6 t ADT: 390

S 7

Fair

Over: SHEEP CAMP CREEK

11M NE EKALAKA, Carter, MT

Built 1941 Load: 23.6 t ADT: 390

LITTLE MISSOURI RD

Fair

Over: LITTLE MISSOURI RIV 009

15M SW CAPITOL, Carter, MT

Built 1989 Load: 25.4 t ADT: 42

STAGVILLE DRAW RD

Fair

Over: RUSSELL CREEK 005

3M SE EKALAKA, Carter, MT

Built 1938 Load: 28.1 t ADT: 100

LITTLE MISSOURI RD

Fair

Over: HORSE CREEK 008

16M NE ALZADA, Carter, MT

Built 2012 Load: 28.1 t ADT: 42

US 212

Fair

Over: WILLOW CREEK

8M NW ALZADA, Carter, MT

Built 1955 Load: 28.1 t ADT: 2,170

S 323

Fair

Over: LITTLE MISSOURI RIVER

15M NE ALZADA, Carter, MT

Built 1983 Load: 28.1 t ADT: 215

MILL IRON CAMP CRO

Fair

Over: BOX ELDER CREEK 006

2M SE MILL IRON, Carter, MT

Built 1965 Load: 29.9 t ADT: 74

S 7

Fair

Over: DRAINAGE

8M NE EKALAKA, Carter, MT

Built 1940 Load: 29.9 t ADT: 390

US 212

Fair

Over: LITTLE MISSOURI RIVER

1M NW ALZADA, Carter, MT

Built 1965 Load: 31.8 t ADT: 2,509

S 7

Fair

Over: LITTLE BEAVER CREEK

6M NE EKALAKA, Carter, MT

Built 2010 Load: 31.8 t ADT: 390

MORMON AVE

Fair

Over: RUSSELL CREEK 035

EKALAKA-MORMON AVE, Carter, MT

Built 1940 Load: 32.4 t ADT: 477

HAMMOND RD

Fair

Over: CORRAL CREEK

29M NE HAMMOND, Carter, MT

Built 2000 Load: 32.7 t ADT: 32

PLEVNA ROAD

Fair

Over: S FORK MILL CREEK 039

20M N EKALAKA, Carter, MT

Built 2013 Load: 37.2 t ADT: 100

HAMMOND RD

Fair

Over: WHITETAIL CREEK

21M NE HAMMOND, Carter, MT

Built 2010 Load: 38.1 t ADT: 32

HAMMOND RD

Fair

Over: BOX ELDER CREEK

31M NE HAMMOND, Carter, MT

Built 2000 Load: 39.0 t ADT: 33

US 212

Fair

Over: THOMPSON CREEK

3M NW ALZADA, Carter, MT

Built 1965 Load: 39.9 t ADT: 2,509

RIDGE RD

Fair

Over: THOMPSON CREEK 032

12M W ALZADA, Carter, MT

Built 1987 Load: 99.9 t ADT: 371

CROW CREEK ROAD

Good

Over: DRY CREEK

20.7M N HAMMOND, Carter, MT

Built 2015 ADT: 100

LITTLE MISSOURI RD

Good

Over: SAND CREEK 015

2M N CAPITOL, Carter, MT

Built 2015 Load: 20.9 t ADT: 42

LITTLE MISSOURI RD

Good

Over: DRAINAGE 010

11M SW CAPITOL, Carter, MT

Built 2013 Load: 22.7 t ADT: 42

TAUCK RD

Good

Over: L O CREEK 024

22M NE HAMMOND, Carter, MT

Built 2014 Load: 25.4 t ADT: 100

COTTONWOOD CR RD

Good

Over: S COTTONWOOD CREEK 021

15M NW ALZADA, Carter, MT

Built 2014 Load: 25.4 t ADT: 100

LITTLE MISSOURI RD

Good

Over: COTTONWOOD CREEK 011

3M S CAPITOL, Carter, MT

Built 2015 Load: 25.4 t ADT: 42

ISMAY RD

Good

Over: O`FALLON CREEK 002

20M NW EKALAKA, Carter, MT

Built 1994 Load: 26.3 t ADT: 100

TAUCK RD

Good

Over: BOX ELDER CREEK 023

21M NE HAMMOND, Carter, MT

Built 2013 Load: 26.3 t ADT: 100

Chicago AVE

Good

Over: Russell Creek

Ekalaka-Chicago AVE, Carter, MT

Built 2019 Load: 30.8 t ADT: 477

CAPITOL RD

Good

Over: LITTLE MISSOURI RIV 014

E CAPITOL, Carter, MT

Built 2003 Load: 30.8 t ADT: 100

COTTONWOOD CR RD

Good

Over: BOX ELDER CREEK 022

18M NE HAMMOND, Carter, MT

Built 2010 Load: 31.8 t ADT: 100

CROW CREEK RD

Good

Over: CROW CREEK 033

17M NW HAMMOND, Carter, MT

Built 2015 Load: 33.6 t ADT: 100

LARSON LOOP RD

Good

Over: BOX ELDER CREEK

30 M S EKALAKA, Carter, MT

Built 2019 Load: 40.8 t ADT: 100

S 7

Poor

Over: DRAINAGE

1M NE EKALAKA, Carter, MT

Built 1940 Load: 28.1 t ADT: 470

S 7

Poor

Over: COLLINS CREEK

6M NE EKALAKA, Carter, MT

Built 1940 Load: 30.8 t ADT: 390

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