Yellowstone County, MT

283 public highway bridges

Yellowstone County Bridge Snapshot

Yellowstone County, Montana contains 283 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.3% are rated “Good,” 46.3% “Fair,” 1.1% “Poor,” and 1.1% 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.

283
Total Bridges
28.3%
Good
1.1%
Poor
1.1%
Structurally Deficient

Condition Distribution

Good
28.3% (80)
Fair
46.3% (131)
Poor
1.1% (3)
SD
1.1% (3)

All Bridges (283)

I90

Good

Over: MT Power RR Spur

Billings, Yellowstone, MT

Built 2023 ADT: 14,315

I-90

Good

Over: Yellowstone River

Billings, Yellowstone, MT

Built 2023 ADT: 14,315

27TH AVE W

Good

Over: BIG DITCH 031

3M W LAUREL, Yellowstone, MT

Built 1988 Load: 11.8 t ADT: 590

17TH ST W

Good

Over: BBWA CANAL

BILLINGS-17TH ST W, Yellowstone, MT

Built 1974 Load: 14.5 t ADT: 8,983

ALKALI CREEK RD.

Good

Over: ALKALI CREEK

1M N BILLINGS, Yellowstone, MT

Built 2021 Load: 15.4 t ADT: 989

VERMILION RD

Good

Over: TWELVE MILE CREEK 091

4M S SHEPHERD, Yellowstone, MT

Built 2005 Load: 15.4 t ADT: 100

SHANNON RD

Good

Over: CANYON CREEK DITCH

2M E LAUREL, Yellowstone, MT

Built 1984 Load: 16.3 t ADT: 1,844

N CANAL DR

Good

Over: HUNTLEY MAIN CANAL 104

S HUNTLEY, Yellowstone, MT

Built 1975 Load: 18.1 t ADT: 100

MARY ST

Good

Over: FIVE MILE CREEK 118

NE BILLINGS-MARY ST, Yellowstone, MT

Built 2007 Load: 18.1 t ADT: 572

E I RD

Good

Over: HUNTLEY MAIN CANAL 144

2M NE BALLANTINE, Yellowstone, MT

Built 2004 Load: 20.9 t ADT: 100

12 MILE RD

Good

Over: CROOKED CREEK 089

4M NW SHEPHERD, Yellowstone, MT

Built 2010 Load: 20.9 t ADT: 100

S 4TH RD

Good

Over: HUNTLEY MAIN CANAL 146

1M NE HUNTLEY, Yellowstone, MT

Built 1986 Load: 21.1 t ADT: 79

SPORTSMAN PARK RD

Good

Over: DRAINAGE

5M SW LAUREL, Yellowstone, MT

Built 2019 Load: 21.8 t ADT: 100

BENCH BLVD

Good

Over: ALKALI CREEK

BILLINGS-BENCH BLVD, Yellowstone, MT

Built 2011 Load: 21.8 t ADT: 12,241

S 88TH ST W

Good

Over: CANYON CREEK

6M W BILLINGS, Yellowstone, MT

Built 1975 Load: 23.3 t ADT: 780

ANITA DAM RD

Good

Over: FLY CREEK 138

4M SW POMPEY`S PILLAR, Yellowstone, MT

Built 2015 Load: 23.6 t ADT: 3

S 56TH ST W

Good

Over: CANYON CREEK 073

W BILLINGS-S 56TH ST W, Yellowstone, MT

Built 1967 Load: 24.5 t ADT: 2,785

72ND ST W

Good

Over: CANYON CREEK 050

5M SW BILLINGS, Yellowstone, MT

Built 1959 Load: 24.5 t ADT: 4,244

SHERROD LN

Good

Over: FLY CREEK 142

2M SW POMPEY`S PILLAR, Yellowstone, MT

Built 1973 Load: 25.4 t ADT: 100

BITTERROOT DR

Good

Over: FIVE MILE CREEK 119

N BILLINGS HEIGHTS, Yellowstone, MT

Built 1999 Load: 25.4 t ADT: 1,563

STRAUCH RD

Good

Over: BBWA CANAL 063

1M E LAUREL, Yellowstone, MT

Built 2014 Load: 25.4 t ADT: 100

S 8TH RD

Good

Over: HUNTLEY MAIN CANAL

4M NE HUNTLEY, Yellowstone, MT

Built 2020 Load: 26.3 t ADT: 164

RAMP TO W I 90

Good

Over: SHILOH INTERCHANGE

BILLINGS, Yellowstone, MT

Built 2001 Load: 26.3 t ADT: 2,039

BENDER RD

Good

Over: BLUE CREEK 017

5M SE BILLINGS, Yellowstone, MT

Built 2015 Load: 26.3 t ADT: 100

MAILBOX RD

Good

Over: CROOKED CREEK 088

6M NW SHEPHERD, Yellowstone, MT

Built 2014 Load: 26.3 t ADT: 100

CHICAGO RD

Good

Over: TWELVE MILE CREEK 093

4M SW SHEPHERD, Yellowstone, MT

Built 1989 Load: 26.3 t ADT: 100

CLARK RD

Good

Over: CROOKED CREEK 080

2M NE SHEPHERD, Yellowstone, MT

Built 2012 Load: 26.3 t ADT: 100

OLD US 87

Good

Over: PRYOR CREEK 069

8M SE BILLINGS, Yellowstone, MT

Built 1979 Load: 26.3 t ADT: 561

BUFFALO TRAIL RD

Good

Over: CANYON CREEK

9M W BILLINGS, Yellowstone, MT

Built 1968 Load: 26.3 t ADT: 852

YEOMAN RD

Good

Over: BBWA CANAL 094

4M SW SHEPHERD, Yellowstone, MT

Built 2010 Load: 27.2 t ADT: 100

OLD HARDIN RD

Good

Over: DRY CREEK 025

LOCKWOOD-OLD HARDIN RD, Yellowstone, MT

Built 1994 Load: 27.2 t ADT: 4,537

RIVEROAKS DR

Good

Over: BBWA CANAL 083

BILLINGS-RIVEROAKS DR, Yellowstone, MT

Built 1982 Load: 27.2 t ADT: 2,768

MONAD RD

Good

Over: BBWA CANAL 151

BILLINGS-MONAD RD, Yellowstone, MT

Built 1986 Load: 27.9 t ADT: 7,079

BYAM RD

Good

Over: CLARKS FK YELLOWSTONE024

3M S LAUREL, Yellowstone, MT

Built 1997 Load: 28.1 t ADT: 288

N 17TH RD

Good

Over: ARROW CREEK 148

NE WORDEN, Yellowstone, MT

Built 1983 Load: 28.5 t ADT: 100

DUCK CREEK RD

Good

Over: DUCK CREEK 021

SW BILLINGS, Yellowstone, MT

Built 1992 Load: 29.0 t ADT: 100

HILLBROOKE AVE

Good

Over: BIG DITCH 198

LAUREL-HILLBROOKE AVE, Yellowstone, MT

Built 2006 Load: 29.0 t ADT: 100

US 87

Good

Over: WEST FORK RAZOR CREEK

21M S KLEIN, Yellowstone, MT

Built 1995 Load: 29.0 t ADT: 2,497

US 212

Good

Over: YELLOWSTONE RIVER

1M S LAUREL, Yellowstone, MT

Built 1997 Load: 29.9 t ADT: 12,460

US 87-ROUNDUP RD

Good

Over: FIVE MILE CREEK

2M N BILLINGS, Yellowstone, MT

Built 1977 Load: 29.9 t ADT: 5,986

JELLISON RD

Good

Over: BLUE CREEK 127

2M SE BILLINGS, Yellowstone, MT

Built 1993 Load: 30.8 t ADT: 100

US 87-ROUNDUP RD

Good

Over: BBWA CANAL

3M N BILLINGS, Yellowstone, MT

Built 1977 Load: 30.8 t ADT: 5,986

S 522 (36-31)

Good

Over: PRYOR CREEK

1M S HUNTLEY, Yellowstone, MT

Built 2011 Load: 30.8 t ADT: 4,306

BBP

Good

Over: YELLOWSTONE RIVER

1M NW LOCKWOOD, Yellowstone, MT

Built 2022 Load: 31.8 t ADT: 100

GRELCK LN

Good

Over: BBWA CANAL

BILLINGS HEIGHTS, Yellowstone, MT

Built 2022 Load: 31.8 t ADT: 100

1ST AVE

Good

Over: BIG DITCH

LAUREL-1ST AVE, Yellowstone, MT

Built 1968 Load: 31.8 t ADT: 2,540

N 15TH RD

Good

Over: NO NAME 149

1M N WORDEN, Yellowstone, MT

Built 2004 Load: 32.7 t ADT: 100

N 17TH RD

Good

Over: ARROW CREEK 147

2M NE WORDEN, Yellowstone, MT

Built 2002 Load: 32.7 t ADT: 100

PRYOR RD

Good

Over: PRYOR CREEK 009

13M S BILLINGS, Yellowstone, MT

Built 2003 Load: 32.7 t ADT: 760

PRYOR RD

Good

Over: 4TH OF JULY CREEK 013

20M S BILLINGS, Yellowstone, MT

Built 2001 Load: 32.7 t ADT: 592

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