Big Horn County, WY

93 public highway bridges

Big Horn County Bridge Snapshot

Big Horn County, Wyoming contains 93 public highway bridges in the FHWA National Bridge Inventory. Roughly 24.7% are rated “Good,” 65.6% “Fair,” 7.5% “Poor,” and 7.5% 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 WY 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.

93
Total Bridges
24.7%
Good
7.5%
Poor
7.5%
Structurally Deficient

Condition Distribution

Good
24.7% (23)
Fair
65.6% (61)
Poor
7.5% (7)
SD
7.5% (7)

All Bridges (93)

US 14

Fair

Over: Big Horn River

Greybull-Burgess Jct., Big Horn, WY

Built 1987 Load: 39.9 t ADT: 2,134

US 14A

Fair

Over: Sidon Canal

Garland-Byron, Big Horn, WY

Built 1984 Load: 40.8 t ADT: 1,887

WYO 30

Fair

Over: Greybull River

Basin - Jct 14/16/20, Big Horn, WY

Built 2001 Load: 43.5 t ADT: 868

Bh Cnty Rd R1C

Fair

Over: Polecat Creek

0.5 Miles S. Of Deaver, Big Horn, WY

Built 1979 Load: 46.3 t ADT: 85

Bh Cnty Rd R8C

Fair

Over: Greybull River

3.5 Mi. S. Of Burlington, Big Horn, WY

Built 1980 Load: 48.1 t ADT: 134

State Park Road

Fair

Over: Medicine Lodge Creek

Medicine Lodge State Park, Big Horn, WY

Built 1981 Load: 49.0 t ADT: 33

US 14A

Fair

Over: Sidon Canal

Garland-Byron, Big Horn, WY

Built 1984 Load: 50.8 t ADT: 1,887

Bh Cnty Rd 57

Fair

Over: Unnamed Draw

10 M Se Jct 789 C Rd 55, Big Horn, WY

Built 1970 Load: 51.7 t ADT: 9

US 14

Fair

Over: Dry Creek

Cody - Jct WYO 310, Big Horn, WY

Built 1968 Load: 59.0 t ADT: 1,783

US 16

Fair

Over: East Tensleep Creek

Buffalo-Tensleep Road, Big Horn, WY

Built 1987 Load: 61.7 t ADT: 797

US 16

Fair

Over: BNSF Railway

Basin-Greybull, Big Horn, WY

Built 2005 Load: 78.0 t ADT: 3,295

Bh Cnty Rd R5C

Fair

Over: Farmers Canal

12 Miles West Of Otto, Big Horn, WY

Built 1994 Load: 89.8 t ADT: 20

Bh Cnty Rd R2C

Fair

Over: Whistle Creek

8 Miles S.W. Of Byron, Big Horn, WY

Built 1994 Load: 99.9 t ADT: 18

WYO 433

Good

Over: Five Mile Creek

Worland - Manderson, Big Horn, WY

Built 1961 Load: 24.5 t ADT: 764

WYO 32

Good

Over: Lovell Canal

Lovell - Emblem, Big Horn, WY

Built 1957 Load: 25.4 t ADT: 346

US 310

Good

Over: Sidon Canal

Lovell - Deaver, Big Horn, WY

Built 1971 Load: 31.8 t ADT: 1,834

Bh Cnty Rd 85

Good

Over: Shell Creek

3 Miles W. Of Shell, Big Horn, WY

Built 1968 Load: 31.8 t ADT: 144

FDR 17

Good

Over: SHELL CREEK

2.7 MI ON FDR 17, Big Horn, WY

Built 1948 Load: 32.1 t ADT: 45

US 14

Good

Over: Dry Creek

Greybull - Jct WYO 310, Big Horn, WY

Built 1961 Load: 32.7 t ADT: 5,063

Bh Cnty Rd R9A

Good

Over: Sage Creek

2 Miles W. Of Lovell, Big Horn, WY

Built 1986 Load: 32.7 t ADT: 187

US 16

Good

Over: Big Horn Canal

Basin-Manderson, Big Horn, WY

Built 1956 Load: 32.7 t ADT: 2,122

US 310

Good

Over: East Fork Sand Draw

Greybull-Lovell, Big Horn, WY

Built 1963 Load: 32.7 t ADT: 1,207

Bh Cnty Rd R27

Good

Over: Shell Creek

2 Miles N. Of Greybull, Big Horn, WY

Built 1995 Load: 32.7 t ADT: 117

Bh Cnty Rd R49

Good

Over: N Fork Paint Rock Creek

Hyattville, Big Horn, WY

Built 1983 Load: 33.6 t ADT: 144

FDR 27

Good

Over: WEST TENSLEEP CREEK

6.3 MI NORTH OF HWY 16, Big Horn, WY

Built 1966 Load: 34.0 t ADT: 10

WYO 433

Good

Over: Unnamed Draw

Worland - Manderson, Big Horn, WY

Built 2015 Load: 34.7 t ADT: 1,383

FSR 27

Good

Over: WEST TENSLEEP CREEK

0.1 MI N OF HWY 16, Big Horn, WY

Built 2002 Load: 35.3 t ADT: 291

Bh Cnty Rd R5B

Good

Over: Coon Creek

T56N R97W S34, Big Horn, WY

Built 1994 Load: 39.6 t ADT: 144

US 14

Good

Over: Alkali Draw

Greybull - Burgess Jct, Big Horn, WY

Built 2003 Load: 41.7 t ADT: 824

Bh Cnty Rd L23

Good

Over: Whistle Creek

15 Mi Sw Of Lovell, Big Horn, WY

Built 2005 Load: 41.7 t ADT: 117

US 310

Good

Over: BNSF Railway

Lovell - Deaver, Big Horn, WY

Built 2019 Load: 43.1 t ADT: 2,230

US 14

Good

Over: Potato Draw

Greybull - Burgess Jct, Big Horn, WY

Built 2003 Load: 46.3 t ADT: 824

US 310

Good

Over: Sage Creek

Lovell - Deaver, Big Horn, WY

Built 2019 Load: 46.3 t ADT: 2,230

US 14

Good

Over: Shell Creek

Greybull-Burgess Jct Road, Big Horn, WY

Built 1991 Load: 53.5 t ADT: 511

US 14

Good

Over: Shell Creek

Greybull-Burgess Jct Road, Big Horn, WY

Built 1991 Load: 55.3 t ADT: 511

Bh Cnty Rd R39

Good

Over: Shell Creek

Big Horn County, Big Horn, WY

Built 2005 Load: 55.3 t ADT: 122

Bh Cnty Rd L55

Poor

Over: Big Horn River

6 Miles S. Of Manderson, Big Horn, WY

Built 1930 Load: 18.3 t ADT: 87

Bh Cnty Rd L31

Poor

Over: Shell Creek

0.5 Miles N. Of Shell, Big Horn, WY

Built 1950 Load: 23.2 t ADT: 31

Bh Cnty Rd 196

Poor

Over: Unnamed Draw

3 Miles East Of Greybull, Big Horn, WY

Built 1983 Load: 29.8 t ADT: 51

Bh Cnty Rd 268

Poor

Over: Medicine Lodge Creek

T50N R089W S31, Big Horn, WY

Built 1970 Load: 31.0 t ADT: 188

US 14A

Poor

Over: Sand Draw

Lovell - Burgess Jct, Big Horn, WY

Built 1975 Load: 33.6 t ADT: 1,557

Bh Cnty Rd L32H

Structurally Deficient

Over: Red Gulch

3 Miles W. Of Shell, Big Horn, WY

Built 1950 Load: 6.2 t ADT: 81

Bh Cnty Rd 72

Structurally Deficient

Over: Shoshone River

2 Miles West Of Lovell, Big Horn, WY

Built 1926 Load: 20.2 t ADT: 117

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