Treasure County, MT

26 public highway bridges

Treasure County Bridge Snapshot

Treasure County, Montana contains 26 public highway bridges in the FHWA National Bridge Inventory. Roughly 23.1% are rated “Good,” 42.3% “Fair,” 15.4% “Poor,” and 15.4% 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.

26
Total Bridges
23.1%
Good
15.4%
Poor
15.4%
Structurally Deficient

Condition Distribution

Good
23.1% (6)
Fair
42.3% (11)
Poor
15.4% (4)
SD
15.4% (4)

All Bridges (26)

I 94

Unknown

Over: INT HYSHAM

14.9M E BIGHORN, Treasure, MT

Built 1964 ADT: 433

I 94

Unknown

Over: INT HYSHAM

14.9M E BIGHORN, Treasure, MT

Built 1976 ADT: 433

HAINES RANCH RD

Unknown

Over: SEP I 94 016

3M SE SANDERS, Treasure, MT

Built 1976 ADT: 2,067

TULLOCK RD

Unknown

Over: INT BIGHORN I 94 002

1M S BIGHORN, Treasure, MT

Built 1963 ADT: 2,554

SARPY CREEK RD

Unknown

Over: INT SARPY CREEK I 94

2M SW SANDERS, Treasure, MT

Built 1967 ADT: 2,489

RIVER RD

Fair

Over: IRRIGATION DITCH 020

2M W HYSHAM, Treasure, MT

Built 1978 Load: 4.5 t ADT: 17

MYERS RD

Fair

Over: YELLOWSTONE RIVER

MYERS, Treasure, MT

Built 1968 Load: 8.7 t ADT: 95

PUMPHOUSE RD

Fair

Over: IRRIGATION DITCH 006

1M NW HYSHAM, Treasure, MT

Built 1955 Load: 9.1 t ADT: 168

WILSON RD

Fair

Over: SARPY CREEK 012

22M S HYSHAM, Treasure, MT

Built 1970 Load: 9.1 t

TULLOCK RD

Fair

Over: WEST BURNT CREEK 019

10M SE BIGHORN, Treasure, MT

Built 1970 Load: 12.7 t ADT: 35

OLD HWY 10

Fair

Over: IRRIGATION DITCH 022

9M E HYSHAM, Treasure, MT

Built 2011 Load: 19.1 t ADT: 218

FRONTAGE ROAD 018

Fair

Over: DRAINAGE 010

4M E HYSHAM, Treasure, MT

Built 1933 Load: 22.7 t ADT: 218

OLD HWY 10

Fair

Over: IRRIGATION DITCH 024

10M E HYSHAM, Treasure, MT

Built 1933 Load: 28.1 t ADT: 271

OLD HWY 10

Fair

Over: DRAINAGE 015

6M E HYSHAM, Treasure, MT

Built 1933 Load: 29.0 t ADT: 218

INGOMAR RD

Fair

Over: MUGGINS CREEK 004

2M NW MYERS, Treasure, MT

Built 1970 Load: 43.5 t ADT: 100

SARPY CREEK RD

Fair

Over: SARPY CREEK

4M SW SANDERS, Treasure, MT

Built 1990 Load: 84.4 t ADT: 84

I 94

Good

Over: SARPY CREEK

18.6M E BIGHORN, Treasure, MT

Built 1976 Load: 21.8 t ADT: 2,067

MISSION VALLEY RD

Good

Over: FROZE TO DEATH CR 013

2M NW MYERS, Treasure, MT

Built 1986 Load: 27.2 t ADT: 9

I 94

Good

Over: SARPY CREEK

18.6M E BIGHORN, Treasure, MT

Built 1967 Load: 28.1 t ADT: 2,489

OLD HWY 10

Good

Over: SARPY CREEK 014

5M E HYSHAM, Treasure, MT

Built 2015 Load: 29.0 t ADT: 218

MEYERS RD

Good

Over: ALKALI CREEK

4M NW MYERS, Treasure, MT

Built 1977 Load: 29.9 t ADT: 95

I 94

Good

Over: SEP RR

18.6M E BIGHORN, Treasure, MT

Built 1973 Load: 99.9 t ADT: 4,977

FRONTAGE RD

Poor

Over: SARPY CREEK 003

4M E HYSHAM, Treasure, MT

Built 1925 Load: 5.4 t ADT: 28

RIVER RD

Poor

Over: IRRIGATION DITCH 005

3M W HYSHAM, Treasure, MT

Built 1979 Load: 5.4 t ADT: 17

FRONTAGE ROAD 018

Poor

Over: IRRIGATION DITCH 001

1M E HYSHAM, Treasure, MT

Built 1933 Load: 21.8 t ADT: 279

FRONTAGE ROAD 018

Poor

Over: DRAINAGE 009

4M E HYSHAM, Treasure, MT

Built 1933 Load: 25.4 t ADT: 218

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

Related

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