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

FOREST ROAD 10138

Good

Over: DEADMAN CREEK

NO DATA ENTERED, Lincoln, WY

Built 2002 Load: 36.3 t ADT: 50

US 20

Good

Over: South Fork Casper Creek

Casper - Shoshoni, Natrona, WY

Built 1976 Load: 36.3 t ADT: 2,908

FOREST ROAD 10114

Good

Over: SWEENEY CREEK

8.5 MI. NE. OF PINEDALE, Sublette, WY

Built 2019 Load: 36.3 t ADT: 50

Sb Cnty Rd 126

Good

Over: East Fork River

10 Mi Se Of Boulder, Sublette, WY

Built 2006 Load: 36.3 t ADT: 49

WYO 789

Good

Over: Muddy Creek

Creston Jct - Colo Line, Carbon, WY

Built 1960 Load: 36.6 t ADT: 1,193

WYO 10

Good

Over: Laramie River

Woods Landing, Albany, WY

Built 2003 Load: 36.9 t ADT: 238

Fr Cnty Rd 341

Good

Over: Pavillion Lateral

2.5 Mi Ne Of Pavillion, Fremont, WY

Built 2000 Load: 36.9 t ADT: 168

I-80 EBL

Good

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 37.2 t ADT: 5,683

WYO 789

Good

Over: Muddy Creek

Creston Jct - Colo Line, Carbon, WY

Built 1940 Load: 37.2 t ADT: 1,793

US 287

Good

Over: Antelope Creek

Muddy Gap Jct-WYO 28 Jct, Fremont, WY

Built 1977 Load: 37.2 t ADT: 915

Fr Cnty Rd 338

Good

Over: Pilot Canal

15 Mi Ne Of Riverton, Fremont, WY

Built 2000 Load: 37.2 t ADT: 127

WYO 154

Good

Over: Fort Laramie Canal

Jct Us 85 - Yoder, Goshen, WY

Built 1966 Load: 37.2 t ADT: 672

US 16

Good

Over: Clear Creek

Buffalo, Johnson, WY

Built 2010 Load: 37.2 t ADT: 2,930

WYO 414

Good

Over: Henrys Fork River

Jct I-80 - Utah Line, Uinta, WY

Built 1968 Load: 37.2 t ADT: 593

Ui Cnty Rd 279

Good

Over: Willow Creek

3 Mi. S.E. Of Robertson, Uinta, WY

Built 1984 Load: 37.2 t ADT: 102

FSR 389

Good

Over: NORTH FORK CLEAR CREEK

0.3 MI ON FSR 389, Johnson, WY

Built 2004 Load: 37.6 t ADT: 5

WYO 212

Good

Over: Pedestrian Path

Cheyenne, Laramie, WY

Built 2022 Load: 37.6 t ADT: 7,590

WYO 34

Good

Over: Sand Creek

Bosler Jct - Wheatland, Platte, WY

Built 1983 Load: 37.6 t ADT: 702

IRR BIA RTE 25

Good

Over: TROUT CREEK IRRIG CANAL

AT WIND RIVER, Fremont, WY

Built 1984 Load: 37.7 t ADT: 40

Fr Cnty Rd 428

Good

Over: Five Mile Creek

4 Mi N Of Pavillion, Fremont, WY

Built 2009 Load: 37.8 t ADT: 127

US 14A

Good

Over: Sage Creek

Cody - Powell, Park, WY

Built 2014 Load: 37.9 t ADT: 7,149

WYO 230

Good

Over: Encampment River

Saratoga - Colo Line, Carbon, WY

Built 1979 Load: 38.1 t ADT: 642

Cb Cnty Rd 1

Good

Over: Rock Creek

1 Mi W Of Mcfadden, Carbon, WY

Built 2012 Load: 38.1 t ADT: 82

WYO 154

Good

Over: Cherry Creek

Yoder-Torrington, Goshen, WY

Built 1986 Load: 38.1 t ADT: 164

Hs Cnty Rd 6

Good

Over: Kirby Creek

20 Mi. Ne. Of Thermopolis, Hot Springs, WY

Built 1973 Load: 38.1 t ADT: 55

Sh Cnty Rd 71

Good

Over: Tongue River

3 Mi Sw Of Ranchester, Sheridan, WY

Built 2008 Load: 38.1 t ADT: 54

GRAND LOOP ROAD

Good

Over: GIBBON RIVER

7.5 MI. NE OF MADISON JCT, Teton, WY

Built 2002 Load: 38.1 t ADT: 1,807

Te Cnty Rd 3

Good

Over: Fish Creek

Wilson Square Road, Teton, WY

Built 1995 Load: 38.1 t ADT: 1,015

US 16

Good

Over: Tensleep Creek

Worland - Buffalo, Washakie, WY

Built 1954 Load: 38.1 t ADT: 1,044

WYO 116 S

Good

Over: Lodgepole Creek

Upton - Jct WYO 450, Weston, WY

Built 1979 Load: 38.1 t ADT: 203

3308: COW BUTTE R

Good

Over: Canary Grove

30 mi SW of Rawlins, WY, Carbon, WY

Built 2019 Load: 38.2 t ADT: 25

WYO 319

Good

Over: Dry Wash

Glendo - Orin Jct, Platte, WY

Built 1936 Load: 38.2 t ADT: 412

FOREST ROAD 370743

Good

Over: SURVEYOR CREEK

T34N, R108W, S5, Sublette, WY

Built 2019 Load: 38.2 t ADT: 50

IRR BIA RTE 11

Good

Over: POPO AGIE RIVER

5.0 KM EAST OF MILFORD, Fremont, WY

Built 1992 Load: 38.6 t ADT: 90

FDR

Good

Over: S. FK. WM. SPRINGS CREEK

NO DATA ENTERED, Fremont, WY

Built 1983 Load: 38.6 t ADT: 50

Cr Cnty Rd 264

Good

Over: Hay Creek

6 Mi E Of Aladdin, Crook, WY

Built 2015 Load: 38.9 t ADT: 95

US 191

Good

Over: Wildlife Crossing

Pinedale Hoback Jct, Sublette, WY

Built 2011 Load: 38.9 t ADT: 2,352

US 191

Good

Over: Wildlife Crossing

Pinedale Hoback Jct, Sublette, WY

Built 2011 Load: 38.9 t ADT: 2,352

US 191

Good

Over: Wildlife Crossing

Pinedale - Hoback Jct, Sublette, WY

Built 2011 Load: 38.9 t ADT: 2,352

US 191

Good

Over: Wildlife Crossing

Pinedale-Hoback Jct, Sublette, WY

Built 2011 Load: 38.9 t ADT: 2,948

US 191

Good

Over: Wildlife Crossing

Pinedale-Hoback Jct, Sublette, WY

Built 2011 Load: 38.9 t ADT: 2,948

US 191

Good

Over: Wildlife Crossing

Pinedale- Hoback Jct, Sublette, WY

Built 2011 Load: 38.9 t ADT: 2,924

WYO 433

Good

Over: Big Horn Canal

Worland - Manderson, Washakie, WY

Built 2023 Load: 38.9 t ADT: 1,383

Al Cnty Rd 727

Good

Over: Laramie River

25 Mi Ne Of Bosler, Albany, WY

Built 2011 Load: 39.0 t ADT: 128

US 14

Good

Over: Machinery Pass

5 Mi N Of Gillette, Campbell, WY

Built 2009 Load: 39.0 t ADT: 2,556

I-90 EBL

Good

Over: Houston Creek

Moorcroft - Sundance, Crook, WY

Built 1961 Load: 39.0 t ADT: 2,063

I-90 WBL

Good

Over: Houston Creek

Moorcroft - Sundance, Crook, WY

Built 1961 Load: 39.0 t ADT: 1,833

Mickel Drive

Good

Over: Big Wind River

T41N R107W S01, Fremont, WY

Built 1988 Load: 39.0 t ADT: 136

Jo Cnty Rd 195

Good

Over: Crazy Woman Creek

30 Miles N.E. Of Buffalo, Johnson, WY

Built 1987 Load: 39.0 t ADT: 97

WYO 59

Good

Over: White Tail Creek

Gillette - Montana Line, Campbell, WY

Built 2015 Load: 39.2 t ADT: 994

Showing 2,751-2,800 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.