Blaine County, MT

101 public highway bridges

Blaine County Bridge Snapshot

Blaine County, Montana contains 101 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.7% are rated “Good,” 57.4% “Fair,” 9.9% “Poor,” and 9.9% 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.

101

Total Bridges

32.7%

Good

9.9%

Poor

9.9%

Structurally Deficient

Condition Distribution

Good

32.7% (33)

Fair

57.4% (58)

Poor

9.9% (10)

SD

9.9% (10)

All Bridges (101)

Sort:

ELLOAM RD

Over: BATTLE CREEK 018

25M N CHINOOK, Blaine, MT

Built 1991 Load: 4.5 t ADT: 100

MILLER ROAD

Over: FORT BELKNAP CANAL 057

7M NW HARLEM, Blaine, MT

Built 1923 Load: 4.5 t ADT: 100

YANTIC RD

Over: RED ROCK COULEE 004

3M NE LOHMAN, Blaine, MT

Built 1933 Load: 10.0 t ADT: 40

COUNTY ROAD 323

Over: SNAKE CREEK 048

9M S ZURICH, Blaine, MT

Built 1911 Load: 10.0 t ADT: 100

HALL RD

Over: RED ROCK COULEE 080

6M NW CHINOOK, Blaine, MT

Built 1970 Load: 10.9 t ADT: 42

HALL RD

Over: FT. BELKNAP CANAL 08

6M NW CHINOOK, Blaine, MT

Built 1970 Load: 10.9 t ADT: 42

EKEGREN RD

Over: THIRTY MILE CREEK 127

4M E HARLEM, Blaine, MT

Built 1930 Load: 11.8 t ADT: 100

KLINDWORTH RD

Over: WOODY ISLAND COULEE 134

7M NW HOGELAND, Blaine, MT

Built 1933 Load: 13.6 t ADT: 100

STOCKYARD RD

Over: LODGE CREEK 022

2M E CHINOOK, Blaine, MT

Built 2000 Load: 13.6 t ADT: 100

8 MILE RD

Over: MILK RIVER 078

5M SE ZURICH, Blaine, MT

Built 1930 Load: 16.3 t ADT: 100

N FORK RD

Over: PARADISE VALLEY CANAL037

5M SW ZURICH, Blaine, MT

Built 1933 Load: 16.3 t ADT: 28

PARADISE VALLEY RD

Over: SIX MILE CREEK 028

4M SE CHINOOK, Blaine, MT

Built 1975 Load: 17.2 t ADT: 100

IRR - S 66

Over: PEOPLES CREEK

19M S FORT BELKNAP AGENCY, Blaine, MT

Built 1952 Load: 19.1 t ADT: 758

CLEVELAND RD

Over: MILK RIVER

CHINOOK, Blaine, MT

Built 1964 Load: 20.0 t ADT: 849

US 2

Over: FIFTEEN MILE CREEK

1M E ZURICH, Blaine, MT

Built 1948 Load: 20.9 t ADT: 1,875

LODGE CREEK RD

Over: DRAINAGE-STOCKPASS

1M NE CHINOOK, Blaine, MT

Built 1952 Load: 20.9 t ADT: 100

STEPHENS RD

Over: FORT BELKNAP CANAL 007

1M NW CHINOOK, Blaine, MT

Built 1999 Load: 21.8 t ADT: 211

COAL MINE RD

Over: RED ROCK COULEE 012

5M NW CHINOOK, Blaine, MT

Built 1933 Load: 21.8 t ADT: 41

MAIN ST N

Over: THIRTY MILE CREEK

HARLEM, Blaine, MT

Built 1957 Load: 21.8 t ADT: 543

HIGHLAND RD

Over: FORT BELKNAP CANAL 015

1M N LOHMAN, Blaine, MT

Built 1933 Load: 22.4 t ADT: 125

US 2

Over: DRAINAGE

3M E CHINOOK, Blaine, MT

Built 1940 Load: 22.7 t ADT: 2,067

US 2

Over: DRAINAGE

1M W ZURICH, Blaine, MT

Built 1940 Load: 22.7 t ADT: 2,067

TURNER RD

Over: N FORK WAYNE CREEK

11M NE HARLEM, Blaine, MT

Built 1947 Load: 22.7 t ADT: 61

US 2

Over: DRAINAGE

3M E CHINOOK, Blaine, MT

Built 1940 Load: 23.6 t ADT: 2,067

IRR - S 66

Over: SOUTH FORK PEOPLES CREEK

12M NW HAYS, Blaine, MT

Built 1959 Load: 23.6 t ADT: 971

IRR BIA RTE 8

Over: PEOPLES CREEK

22.5 KM SW OF DODSON, Blaine, MT

Built 1976 Load: 24.5 t ADT: 200

BAGAN RD

Over: BATTLE CREEK 060

3M E CHINOOK, Blaine, MT

Built 1940 Load: 24.5 t ADT: 83

KLINDWORTH RD

Over: WOODY ISLAND COULEE 136

5M N HOGELAND, Blaine, MT

Built 2001 Load: 24.5 t ADT: 100

CENTRAL AVE W

Over: DRAINAGE 117

HARLEM, Blaine, MT

Built 1939 Load: 24.5 t ADT: 581

US 2

Over: DRAINAGE

1M E CHINOOK, Blaine, MT

Built 1940 Load: 24.5 t ADT: 2,254

IRR - S 66

Over: WHITE BEAR CREEK

9M S FORT BELKNAP AGENCY, Blaine, MT

Built 1959 Load: 24.5 t ADT: 758

IRR - S 66

Over: THREE MILE COULEE

3M S FORT BELKNAP AGENCY, Blaine, MT

Built 1959 Load: 24.5 t ADT: 758

TURNER RD

Over: WAYNE CREEK

9M NE HARLEM, Blaine, MT

Built 1947 Load: 24.5 t ADT: 61

S 396-SAVOY RD

Over: THIRTY MILE CREEK

1M SE HARLEM, Blaine, MT

Built 1941 Load: 24.5 t ADT: 105

NEW HOPE RD

Over: SNAKE CREEK 042

9M W HARLEM, Blaine, MT

Built 1933 Load: 25.4 t ADT: 100

US 2

Over: DRAINAGE

CHINOOK, Blaine, MT

Built 1942 Load: 25.4 t ADT: 2,818

TURNER RD

Over: S FORK WAYNE CREEK

7M NE HARLEM, Blaine, MT

Built 1947 Load: 25.4 t ADT: 61

TURNER RD

Over: W SAVOY CREEK

13M NE HARLEM, Blaine, MT

Built 1947 Load: 25.4 t ADT: 61

CLEAR CR RD SE

Over: CLEAR CREEK 095

17M S LOHMAN, Blaine, MT

Built 1985 Load: 26.3 t ADT: 37

LODGE CREEK RD

Over: DRAINAGE

1M NE CHINOOK, Blaine, MT

Built 1952 Load: 26.8 t ADT: 100

US 2

Over: DRAINAGE

4M W ZURICH, Blaine, MT

Built 1941 Load: 27.2 t ADT: 2,067

TURNER RD

Over: E FORK WAYNE CREEK

9M NE HARLEM, Blaine, MT

Built 1947 Load: 27.2 t ADT: 61

REDROCK RD

Over: RED ROCK COULEE 009

4M NW CHINOOK, Blaine, MT

Built 1933 Load: 28.1 t ADT: 211

YANTIC RD

Over: RED ROCK COULEE 002

4M NE LOHMAN, Blaine, MT

Built 1933 Load: 29.0 t ADT: 40

US 2

Over: RED ROCK CREEK OVERFLOW

CHINOOK, Blaine, MT

Built 1942 Load: 29.0 t ADT: 2,818

S 529-CLEAR CR RD

Over: RED ROCK CREEK

CHINOOK, Blaine, MT

Built 1967 Load: 29.0 t ADT: 254

10TH ST W

Over: RED ROCK COULEE 096

W EDGE CHINOOK, Blaine, MT

Built 1985 Load: 29.2 t ADT: 100

CLEVELAND RD

Over: BEAN CREEK

11M S CHINOOK, Blaine, MT

Built 1957 Load: 30.8 t ADT: 159

PEOPLE CR RD

Over: PEOPLE`S CREEK 106

5M SW CLEVELAND, Blaine, MT

Built 1971 Load: 32.4 t ADT: 47

CLEVELAND RD

Over: RED ROCK CREEK

CHINOOK, Blaine, MT

Built 1964 Load: 32.7 t ADT: 849

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 5, 2026