State profile · Below national median SD

Wyoming bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Wyoming — drawn straight from the FHWA National Bridge Inventory.

3,181
Public bridges
26.2%
Good condition
5.4%
Poor condition
5.4%
Structurally deficient

Total Bridges

3,181

Public highway bridges in Wyoming

Good Condition

26.2%

833 bridges rated 7-9

-23.8pp vs 50% benchmark

Poor Condition

5.4%

172 bridges rated 0-4

Structurally Deficient

5.4%

172 bridges flagged for repair priority

-1.6pp vs national avg 7.0%

Wyoming vs national bridge condition

Wyoming — Good condition share 26.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Wyoming — Structurally deficient share 18.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Wyoming (FHWA NBI)

Wyoming26.186733731530964%50.330084878968876%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Wyoming (FHWA NBI)

Counties (23)

Albany 124 Big Horn 93 Campbell 158 Carbon 207 Converse 147 Crook 176 Fremont 177 Goshen 108 Hot Springs 40 Johnson 204 Laramie 261 Lincoln 131 Natrona 138 Niobrara 34 Park 187 Platte 163 Sheridan 171 Sublette 109 Sweetwater 196 Teton 119 Uinta 134 Washakie 61 Weston 43

Wyoming vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Wyoming on the same metric.

18

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

20

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867
Selected

56

Wyoming

5.41% top marginal rate
Structure
Progressive
Burden @ $100K
$3,181

16

Idaho

5.51% top marginal rate
Structure
Progressive
Burden @ $100K
$1,742

28

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

Bridges Needing Most Attention in Wyoming

Six lowest-condition bridges in Wyoming, ranked by composite NBI rating. Each is inspected at least every 24 months.

FIREHOLE LAKE DRIV

Structurally Deficient

Over: THERMAL AREA DRAINAGE

10 +/- MI. SOUTH OF MADIS, Teton, WY

Built 1935 Load: 3.6 t ADT: 1,500

Sb Cnty Rd 175

Structurally Deficient

Over: New Fork River

T30N R110W S22, Sublette, WY

Built 1940 Load: 4.3 t ADT: 11

Cb Cnty Rd 680

Poor

Over: Encampment River

4 Miles N. Of Encampment, Carbon, WY

Built 1915 Load: 4.9 t ADT: 70

BLM Road 4116

Structurally Deficient

Over: Big Sandy River

35 Miles Se Of Boulder, Sublette, WY

Built 1982 Load: 5.4 t ADT: 49

NO DATA ENTERED

Poor

Over: NO DATA ENTERED

NO DATA ENTERED, Lincoln, WY

Built 2013 Load: 5.5 t ADT: 50

Sh Cnty Rd 110

Structurally Deficient

Over: Tongue River

7 Mi Nw Of Sheridan, Sheridan, WY

Built 1903 Load: 5.5 t ADT: 179

All Bridges in Wyoming

US 20

Good

Over: Van Tassell Creek

Lusk - Nebr. Line, Niobrara, WY

Built 1986 Load: 34.5 t ADT: 534

WYO 120

Good

Over: Cody Canal

Thermopolis - Cody, Park, WY

Built 1979 Load: 34.5 t ADT: 2,654

Pl Cnty Rd 80

Good

Over: Iowa Lateral Ditch

5 Mi W.S.W. Of Wheatland, Platte, WY

Built 1970 Load: 34.5 t ADT: 131

I-90/US 14/87 Bus

Good

Over: Little Goose Creek

Sheridan, Coffeen Ave, Sheridan, WY

Built 1980 Load: 34.5 t ADT: 19,163

Sb Cnty Rd 108

Good

Over: Hoback River

2 Mi Nw Of Bondurant, Sublette, WY

Built 2011 Load: 34.5 t ADT: 145

Sw Cnty Rd 6

Good

Over: Green River

OCI Chemical Road, Sweetwater, WY

Built 1998 Load: 34.5 t ADT: 1,040

US 189

Good

Over: Little Muddy Creek

Lazeart Jct-Kemmerer, Uinta, WY

Built 1987 Load: 34.5 t ADT: 1,134

Snowy Range Road

Good

Over: UPRR

Laramie Streets, Albany, WY

Built 2018 Load: 34.7 t ADT: 11,309

WYO 433

Good

Over: Unnamed Draw

Worland - Manderson, Big Horn, WY

Built 2015 Load: 34.7 t ADT: 1,383

Dell Range Blvd

Good

Over: Dry Creek

Cheyenne, Laramie, WY

Built 1985 Load: 34.7 t ADT: 27,316

La Cnty Rd 127-1

Good

Over: Dry Creek

Cheyenne, Laramie, WY

Built 1985 Load: 34.7 t ADT: 6,453

Cb Cnty Rd 3

Good

Over: Medicine Bow River

Elk Mountain-E Main St, Carbon, WY

Built 2016 Load: 35.0 t ADT: 121

Ui Cnty Rd 159

Good

Over: Sulphur Creek

7 mi. S.E. of Evanston, Uinta, WY

Built 2020 Load: 35.0 t ADT: 37

Jo Cnty Rd 259

Good

Over: Dead Horse Creek

31 Mi Se Of Buffalo, Johnson, WY

Built 2008 Load: 35.1 t ADT: 97

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

NFSR 329

Good

Over: SAND CREEK

31 MI W OF LANDER, WY, Fremont, WY

Built 2013 Load: 35.3 t ADT: 50

NFSR 329

Good

Over: DICKINSON CREEK

31.2 MI W OF LANDER, WY, Fremont, WY

Built 2013 Load: 35.3 t ADT: 50

FOREST ROAD 10138

Good

Over: GREYS RIVER

T33N, R116W, S5, Lincoln, WY

Built 2002 Load: 35.3 t ADT: 50

Pa Cnty Rd 6QS

Good

Over: S Fork Shoshone River

13 Mi. S.W. Of Cody, Park, WY

Built 2018 Load: 35.3 t ADT: 90

Sw Cnty Rd 37

Good

Over: UPRR

.5 Mi. S. of Labarge Int, Sweetwater, WY

Built 2017 Load: 35.3 t ADT: 87

Te Cnty Rd 4

Good

Over: Gros Ventre River

T42N R116W S34, Teton, WY

Built 2018 Load: 35.3 t ADT: 886

I-80 WBL

Good

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1964 Load: 35.4 t ADT: 6,418

Fr Cnty Rd 176

Good

Over: Badwater Creek

T38N R091W S13, Fremont, WY

Built 1978 Load: 35.4 t ADT: 243

US 26

Good

Over: North Fork Torrey Creek

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 35.4 t ADT: 1,554

US 26

Good

Over: Jakeys Fork River

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 35.4 t ADT: 4,296

Fr Cnty Rd 331

Good

Over: Pilot Canal

Buckhorn Flats Road, Fremont, WY

Built 1987 Load: 35.4 t ADT: 225

US 26

Good

Over: Unnamed Draw

Guernsey - Lingle, Goshen, WY

Built 1969 Load: 35.4 t ADT: 2,374

WYO 196

Good

Over: S F Crazy Woman Creek

Kaycee-Buffalo, Johnson, WY

Built 1989 Load: 35.4 t ADT: 48

US 14

Good

Over: Trout Creek

Yellowstone Pk - Cody, Park, WY

Built 1982 Load: 35.4 t ADT: 2,406

I-25 NBL

Good

Over: Spring Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 35.4 t ADT: 3,174

I-25 SBL

Good

Over: Spring Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 35.4 t ADT: 3,375

Sh Cnty Rd 66

Good

Over: Little Goose Creek

2 Miles S. Of Sheridan, Sheridan, WY

Built 1984 Load: 35.4 t ADT: 659

WYO 530

Good

Over: Blacks Fork River

Green River - Utah Line, Sweetwater, WY

Built 1963 Load: 35.4 t ADT: 2,055

US 16

Good

Over: Stockade Beaver Creek

Newcastle - S Dak Line, Weston, WY

Built 1959 Load: 35.4 t ADT: 1,658

NFSR 512

Good

Over: LAKE CREEK

6.5 MI. NW OF FOXPARK, WY, Albany, WY

Built 2014 Load: 35.6 t ADT: 50

Rhoads Street

Good

Over: Wind River

.8 Miles S. of US 26, Fremont, WY

Built 2016 Load: 35.6 t ADT: 127

FOREST ROAD 10138

Good

Over: BLIND BULL CREEK

T34N, R116W, S8, Lincoln, WY

Built 2002 Load: 35.6 t ADT: 50

US 89

Good

Over: Flat Creek

Hoback Jct - Jackson, Teton, WY

Built 2019 Load: 35.6 t ADT: 11,439

NFSR 105

Good

Over: MEDICINE BOW RIVER

4.7 MI SE OF NFSR 100, Carbon, WY

Built 1985 Load: 36.0 t ADT: 14

WYO 215

Good

Over: Spring Creek

North of Pine Bluffs, Laramie, WY

Built 2019 Load: 36.0 t ADT: 639

Pa Cnty Rd L9B

Good

Over: Alkali Creek

6 Miles NW of Ralston, Park, WY

Built 1983 Load: 36.0 t ADT: 128

NFSR 100

Good

Over: NORTH BRUSH CREEK

5 MI. E OF TURPIN RESV, Carbon, WY

Built 1986 Load: 36.3 t ADT: 112

WYO 13

Good

Over: Rock Creek

Rock River - Jct I-80, Carbon, WY

Built 1976 Load: 36.3 t ADT: 350

I-90 EBL

Good

Over: Sand Creek

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 36.3 t ADT: 2,665

I-90 WBL

Good

Over: Sand Creek

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 36.3 t ADT: 2,674

Cr Cnty Rd 261

Good

Over: Belle Fourche River

1.5 Mi. N.E. Of Hulett, Crook, WY

Built 2020 Load: 36.3 t ADT: 22

US 26

Good

Over: Winchester Draw

Diversion D Jt - Riverton, Fremont, WY

Built 1959 Load: 36.3 t ADT: 1,043

US 26

Good

Over: Bull Lake Creek

Dubois - Diversion Dam Jt, Fremont, WY

Built 1982 Load: 36.3 t ADT: 1,554

US 26

Good

Over: South Fork Torrey Creek

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 36.3 t ADT: 1,554

Hs Cnty Rd 6

Good

Over: Kirby Creek

18 Mi. N.E. Thermopolis, Hot Springs, WY

Built 1973 Load: 36.3 t ADT: 55

Showing 2,701-2,750 of 3,181 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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