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

WYO 190

Good

Over: Red Fork Powder River

Kaycee-Barnum Road, Johnson, WY

Built 2007 Load: 46.3 t ADT: 216

Ln Cnty Rd 197S

Good

Over: Stump Creek

2 Mi West Of Auburn, Lincoln, WY

Built 2008 Load: 46.3 t ADT: 120

BEARTOOTH HIGHWAY

Good

Over: LITTLE BEAR CREEK

28.6 MI. EAST OF NE ENTRA, Park, WY

Built 2010 Load: 46.3 t ADT: 1,775

Pa Cnty Rd 6OS

Good

Over: Cody Canal

Apx 12 Miles SW of Cody, Park, WY

Built 2019 Load: 46.3 t ADT: 78

Sw Cnty Rd 30

Good

Over: Salt Wells Creek

22 Mi Se Of Rock Springs, Sweetwater, WY

Built 2009 Load: 46.3 t ADT: 109

Sw Cnty Rd 28

Good

Over: Means Canal

9 Mi Ne Of Farson, Sweetwater, WY

Built 2009 Load: 46.3 t ADT: 113

Ui Cnty Rd 217

Good

Over: Blacks Fork River

Millburne-Fort Bridger, Uinta, WY

Built 1988 Load: 46.3 t ADT: 71

Wa Cnty Rd 47

Good

Over: Nowood River

Ten Sleep - Manderson, Washakie, WY

Built 2008 Load: 46.3 t ADT: 523

WYO 372

Good

Over: Shute Creek

Green River - Fontenelle, Sweetwater, WY

Built 1961 Load: 46.4 t ADT: 166

Na Cnty Rd 131

Good

Over: Salt Creek

Midwest, Natrona, WY

Built 2012 Load: 46.8 t ADT: 596

Wa Cnty Rd 82

Good

Over: Nowood River

27.5 Mi. S Of Tensleep, Washakie, WY

Built 2002 Load: 46.8 t ADT: 59

WYO 130

Good

Over: North Platte River

8 Mi Se Of Saratoga, Carbon, WY

Built 2002 Load: 47.2 t ADT: 741

I25/US20-26-87 Bus

Good

Over: North Platte River

Douglas Streets, Converse, WY

Built 2009 Load: 47.2 t ADT: 8,748

Fr Cnty Rd 283A

Good

Over: Big Wind River

2 M. W. Of Dwntn Dubois, Fremont, WY

Built 1998 Load: 47.2 t ADT: 411

Go Cnty Rd 10

Good

Over: Bear Creek

17 Mi West Of Lagrange, Goshen, WY

Built 2009 Load: 47.2 t ADT: 9

WYO 271

Good

Over: Lance Creek

.17 Mi West Of Lance Cree, Niobrara, WY

Built 2003 Load: 47.2 t ADT: 39

EAST ENTRANCE ROAD

Good

Over: SEDGE CREEK

18.4 MI. WEST OF EAST ENT, Teton, WY

Built 1997 Load: 47.2 t ADT: 1,286

US 20

Good

Over: Big Horn Canal

Worland South, Washakie, WY

Built 2006 Load: 47.2 t ADT: 3,153

Cr Cnty Rd 6

Good

Over: Belle Fourche River

6 Mi Sw Of Hulett, Crook, WY

Built 2002 Load: 47.7 t ADT: 81

I-80 WBL

Good

Over: North Platte River

Rawlins - Laramie, Carbon, WY

Built 2002 Load: 48.1 t ADT: 6,418

Pa Cnty Rd YXD

Good

Over: S Fork Shoshone River

34 Mi Sw Of Cody, Park, WY

Built 2009 Load: 48.1 t ADT: 128

WYO 316

Good

Over: Chugwater Creek

Antelope Gap Road, Platte, WY

Built 2003 Load: 48.1 t ADT: 289

Wa Cnty Rd 211

Good

Over: Hanover Canal

2 Mi Ne Of Winchester, Washakie, WY

Built 2008 Load: 48.1 t ADT: 8

Ni Cnty Rd 11

Good

Over: Lance Creek

12 Mi SW of mule Crk Jct, Niobrara, WY

Built 2017 Load: 48.3 t ADT: 33

Go Cnty Rd 33F

Good

Over: Willy Draw

1.7 Mi N.E. of Lingle, Goshen, WY

Built 2019 Load: 48.4 t ADT: 168

US 30

Good

Over: Medicine Bow River

Medicine Bow-Laramie, Carbon, WY

Built 2009 Load: 49.0 t ADT: 840

Co Cnty Rd 5

Good

Over: Labonte Creek

13 Mi South Of Douglas, Converse, WY

Built 2006 Load: 49.0 t ADT: 50

Jo Cnty Rd 265

Good

Over: N F Crazy Woman Creek

20 Mi S Of Buffalo, Johnson, WY

Built 2006 Load: 49.0 t ADT: 34

Ln Cnty Rd 406

Good

Over: Cottonwood Creek

1 Mile West Of Smoot, Lincoln, WY

Built 1998 Load: 49.0 t ADT: 120

GRAND LOOP ROAD

Good

Over: ISA LAKE

9.8 MI. NW OF WEST THUMB, Teton, WY

Built 2015 Load: 49.0 t ADT: 1,807

Ln Cnty Rd 128

Good

Over: Willow Creek

4.5 Mi North Of Auburn, Lincoln, WY

Built 1998 Load: 49.9 t ADT: 251

WYO 271

Good

Over: Little Lightning Creek

3 Mi West Of Lance Creek, Niobrara, WY

Built 2003 Load: 49.9 t ADT: 39

Sh Cnty Rd 93

Good

Over: Tongue River

4 Mi. E. Of Ranchester, Sheridan, WY

Built 2003 Load: 49.9 t ADT: 72

West River Lane

Good

Over: Big Horn Canal

6 Miles N. Of Worland, Washakie, WY

Built 1995 Load: 49.9 t ADT: 37

Gravel road

Good

Over: Dam spillway

Big Sandy Dam N of Farson, Sweetwater, WY

Built 1952 Load: 50.4 t ADT: 20

WYO 59

Good

Over: Elk Creek

Gillette - Mont Line, Campbell, WY

Built 2019 Load: 50.5 t ADT: 543

WYO 130

Good

Over: Little Laramie River

Laramie - Jct WYO 230, Albany, WY

Built 1979 Load: 50.8 t ADT: 1,375

WYO 59

Good

Over: Little Powder River

Gillette - Montana Sta, Campbell, WY

Built 2005 Load: 50.8 t ADT: 1,333

S 2nd Street

Good

Over: M Fork Popo Agie River

Lander Streets, Fremont, WY

Built 2004 Load: 50.8 t ADT: 1,790

Ln Cnty Rd 143

Good

Over: Crow Creek

1 Mi West Of Fairview, Lincoln, WY

Built 1999 Load: 50.8 t ADT: 120

Ln Cnty Rd 140

Good

Over: Salt River

1.5 Miles West Of Smoot, Lincoln, WY

Built 2006 Load: 50.8 t ADT: 678

I-25 NBL

Good

Over: South Fork Castle Creek

Casper - Kaycee, Natrona, WY

Built 1981 Load: 50.8 t ADT: 1,515

I-25 SBL

Good

Over: South Fork Castle Creek

Casper - Kaycee, Natrona, WY

Built 1981 Load: 50.8 t ADT: 1,464

WYO 319

Good

Over: BNSF Railway

Glendo Streets, Platte, WY

Built 2011 Load: 50.8 t ADT: 359

Go Cnty Rd 39F

Good

Over: Rawhide Creek

Northeast Of Lingle, Goshen, WY

Built 1993 Load: 51.3 t ADT: 68

Te Cnty Rd 33

Good

Over: Hoback River

Hoback Junction, Teton, WY

Built 2017 Load: 51.5 t ADT: 351

US 14

Good

Over: N Fork Shoshone River

33 Mi West Of Cody, Park, WY

Built 2001 Load: 51.7 t ADT: 2,487

Pa Cnty Rd R10A

Good

Over: Garland Canal

1 Mile West Of Powell, Park, WY

Built 1990 Load: 51.7 t ADT: 1,757

Sw Cnty Rd 1

Good

Over: Henrys Fork River

45 Mi Sw Of Green River, Sweetwater, WY

Built 2005 Load: 51.7 t ADT: 116

NFSR 498

Good

Over: S. FORK BIG CREEK

6.53 MI WEST OF HWY 230, Carbon, WY

Built 2002 Load: 51.8 t ADT: 25

Showing 2,901-2,950 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.