Carter County, MT

39 public highway bridges

Carter County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Carter County, Montana contains 39 public highway bridges. Roughly 33.3% are rated “Good,” 61.5% “Fair,” and 5.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

39
Total Bridges
33.3%
Good
61.5%
Fair
5.1%
Poor Condition

Condition Distribution

Good
33.3% (13)
Fair
61.5% (24)
Poor
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.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.