State profile · Near median Poor share

Wyoming bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Wyoming.

3,136
Public bridges
30.1%
Good condition
6.5%
Poor condition

Wyoming holds 3,136 public highway bridges (#41 of 52 by inventory) with a 6.51% Poor share (#24 of 52 by Poor share).

That is 6.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 29 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

3,136

Public highway bridges in Wyoming

Good Condition

30.1%

943 bridges rated 7-9

-19.9pp vs 50% benchmark

Poor Condition

6.5%

204 bridges whose lowest applicable component is rated 0-4

-1.0pp vs national avg 7.5%

Wyoming vs national bridge condition

Wyoming - Good condition share 30.1%
National avg

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

Wyoming - Poor-condition share 21.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Wyoming in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Wyoming has 3,136 bridges and a 6.5% Poor-condition share in the 2024 NBI, rank #29 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%
Inventory size and Poor-condition share are different measures: Wyoming has 3,136 bridges and a 6.5% Poor-condition share in the 2024 NBI, rank #29 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Wyoming vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

3,136 41st of 54 higher than 13 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Wyoming

The highlighted point is Wyoming: 3,136 bridges and 6.51% in Poor condition, rank #29 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Wyoming on that same Poor-share ordering:

  • Mississippi: 16,739 bridges · 6.03% Poor
  • South Carolina: 9,490 bridges · 6.17% Poor
  • Wyoming: 3,136 bridges · 6.51% Poor
  • Wisconsin: 14,446 bridges · 6.52% Poor
  • Hawaii: 1,195 bridges · 6.53% Poor

The full national sortable table lives on the rankings page.

Material families in Wyoming

Exclusive FHWA material families across all 3,136 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Wyoming’s inventory

State agency holds 62.9% of the 3,136 public highway bridges filed under Wyoming in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Wyoming’s bridges were built

Pre-1950 construction accounts for 5.2% of the 3,136 bridges with a recorded original year in Wyoming. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Wyoming30.1%63.4%GoodFairPoor
Bridge inventory deck-condition mix - Wyoming (FHWA NBI)

Counties (23)

Albany 124 Big Horn 91 Campbell 152 Carbon 206 Converse 137 Crook 176 Fremont 177 Goshen 106 Hot Springs 39 Johnson 204 Laramie 254 Lincoln 129 Natrona 135 Niobrara 34 Park 187 Platte 160 Sheridan 170 Sublette 109 Sweetwater 191 Teton 119 Uinta 132 Washakie 61 Weston 43

Wyoming vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Wyoming on the same metric.

MS

Mississippi

6.03% top marginal rate
Structure
Progressive
Burden @ $100K
$16,739

SC

South Carolina

6.17% top marginal rate
Structure
Progressive
Burden @ $100K
$9,490
Selected

WY

Wyoming

6.51% top marginal rate
Structure
Progressive
Burden @ $100K
$3,136

WI

Wisconsin

6.52% top marginal rate
Structure
Progressive
Burden @ $100K
$14,446

HI

Hawaii

6.53% top marginal rate
Structure
Progressive
Burden @ $100K
$1,195

Bridges Needing Most Attention in Wyoming

Six lowest-condition bridges in Wyoming, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

We Cnty Rd 1A

Poor

Over: Beaver Creek

23 Miles Se Of Newcastle, Weston, WY

Built 1933 Load: 0.0 t ADT: 136

Wa Cnty Rd 580

Poor

Over: East Fork Sand Creek

8 Mi+East Of Worland, Washakie, WY

Built 1935 Load: 0.0 t ADT: 4

Fr Cnty Rd 523

Poor

Over: Twin Creek

15 Mi. S.E. Of Lander, Fremont, WY

Built 1932 Load: 0.0 t ADT: 8

FIREHOLE LAKE DRIV

Poor

Over: THERMAL AREA DRAINAGE

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

Built 1935 Load: 3.6 t ADT: 1,500

Sb Cnty Rd 175

Poor

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

All Bridges in Wyoming

Game and Fish 7GQ

Good

Over: Sunlight Creek

27.8 Miles NW of Cody, Park, WY

Built 1993 Load: 40.5 t ADT: 128

US 26

Good

Over: Wildlife Crossing

Hoback Jct - Jackson, Teton, WY

Built 2022 Load: 40.5 t ADT: 11,439

US 14

Good

Over: Rawhide Creek

Ucross - Jct WYO 59, Campbell, WY

Built 2020 Load: 40.5 t ADT: 1,318

NO DATA ENTERED

Good

Over: COTTONWOOD CREEK

NO DATA ENTERED, Lincoln, WY

Built 2012 Load: 40.8 t ADT: 75

GRAND LOOP ROAD

Good

Over: GARDNER RIVER

8.1 MI. SOUTH OF MAMMOTH, Park, WY

Built 2015 Load: 40.8 t ADT: 1,807

I-25 SBL

Good

Over: Cottonwood Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 40.8 t ADT: 3,375

I-90 EBL

Good

Over: BNSF Railway

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 40.8 t ADT: 3,552

Sh Cnty Rd 67

Good

Over: Wolf Creek

T56N R086W S11, Sheridan, WY

Built 1983 Load: 40.8 t ADT: 274

WYO 432

Good

Over: Lower Hanover Canal

Worland-Neiber, Washakie, WY

Built 1984 Load: 40.8 t ADT: 1,011

WYO 59

Good

Over: Belle Fourche River

Douglas-Gillette Road, Campbell, WY

Built 1984 Load: 40.8 t ADT: 5,714

WYO 451

Good

Over: Beaver Creek

Osage West, Weston, WY

Built 1989 Load: 40.8 t ADT: 99

I-80 Bus

Good

Over: I-80

Rawlins Marginal, Carbon, WY

Built 1994 Load: 40.8 t ADT: 3,179

US 14

Good

Over: Clocktower Creek

Yellowstone Park - Cody, Park, WY

Built 1998 Load: 40.8 t ADT: 3,071

Al Cnty Rd 5-416

Good

Over: Little Laramie River

5 Mi. Se Of Centennial, Albany, WY

Built 1996 Load: 40.8 t ADT: 51

Ni Cnty Rd 50

Good

Over: Lightning Creek

Kaye Field Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 24

Sh Cnty Rd 67

Good

Over: Tongue River

Wolf Creek Road, Sheridan, WY

Built 1998 Load: 40.8 t ADT: 274

WYO 24

Good

Over: Beaver Creek

Hulett-Aladdin, Crook, WY

Built 1997 Load: 40.8 t ADT: 770

Jo Cnty Rd 48

Good

Over: M Fork Crazy Woman Creek

20 Mi S Of Buffalo, Johnson, WY

Built 2000 Load: 40.8 t ADT: 30

I-80 EBL

Good

Over: US 191

Rock Springs Marginal, Sweetwater, WY

Built 2004 Load: 40.8 t ADT: 9,213

WYO 290

Good

Over: Wood River

Meeteetse-Pitchfork, Park, WY

Built 2004 Load: 40.8 t ADT: 511

Cb Cnty Rd 710

Good

Over: Battle Creek

9 Miles E Of Savery, Carbon, WY

Built 2012 Load: 40.8 t ADT: 121

Sb Cnty Rd 179

Good

Over: Green River

5 Mi E Of Daniel, Sublette, WY

Built 2015 Load: 40.8 t ADT: 49

WYO 254

Good

Over: US 20 / 26 Connector

Casper, Natrona, WY

Built 2015 Load: 41.1 t ADT: 4,809

WYO 310

Good

Over: WY Development Co Cnl 2

Wheatland, Platte, WY

Built 2015 Load: 41.1 t ADT: 1,502

Na Cnty Rd 402

Good

Over: Bates Creek

9 Mi SW of Rd Crk School, Natrona, WY

Built 2021 Load: 41.1 t ADT: 23

Interchange Road

Good

Over: I-80

Rock Springs Marginal, Sweetwater, WY

Built 2022 Load: 41.1 t ADT: 3,027

WYO 24

Good

Over: Bush Draw

Hulett-Aladdin Road, Crook, WY

Built 1989 Load: 41.5 t ADT: 1,049

WYO 170

Good

Over: Owl Creek

19 Miles Sw Of Therm, Hot Springs, WY

Built 2014 Load: 41.5 t ADT: 101

WYO 59

Good

Over: North Platte River

Douglas Bypass, Converse, WY

Built 1988 Load: 41.7 t ADT: 6,281

US 14

Good

Over: Libby Creek

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 41.7 t ADT: 2,487

WYO 316

Good

Over: Rock Creek

Wheatland East, Platte, WY

Built 1999 Load: 41.7 t ADT: 1,380

Cb Cnty Rd 99

Good

Over: Little Medicine Bow Rvr

27 Mi. N. Medicine Bow, Carbon, WY

Built 1997 Load: 41.7 t ADT: 9

Ui Cnty Rd 167

Good

Over: La Chapelle Creek

19 Mi. S.E. Of Evanston, Uinta, WY

Built 1999 Load: 41.7 t ADT: 44

US 14

Good

Over: Alkali Draw

Greybull - Burgess Jct, Big Horn, WY

Built 2003 Load: 41.7 t ADT: 824

Wa Cnty Rd 80

Good

Over: Lost Creek

15 Mi S Of Bigtrails, Washakie, WY

Built 2009 Load: 41.7 t ADT: 37

Bh Cnty Rd L23

Good

Over: Whistle Creek

15 Mi Sw Of Lovell, Big Horn, WY

Built 2005 Load: 41.7 t ADT: 117

Pl Cnty Rd 91

Good

Over: Canal No 1

15 Mi Sw Of Wheatland, Platte, WY

Built 2007 Load: 41.7 t ADT: 35

Cr Cnty Rd 268

Good

Over: Inyan Kara Creek

14 Mi West Of Sundance, Crook, WY

Built 2009 Load: 41.7 t ADT: 74

FDR 863

Good

Over: SAND CREEK

T51 N R 61 W SEC 2, Crook, WY

Built 2005 Load: 41.8 t ADT: 50

NFSR 351

Good

Over: NASH FORK

0.05 MI S OF SH 130, Albany, WY

Built 1976 Load: 41.8 t ADT: 91

BEARTOOTH HIGHWAY

Good

Over: BEARTOOTH RAVINE

8.4 MILES EAST OF ROUTE 2, Park, WY

Built 2023 Load: 42.1 t ADT: 4,800

WYO 193

Good

Over: Piney Creek

Jct I-90 - Story, Johnson, WY

Built 2017 Load: 42.1 t ADT: 599

Pl Cnty Rd 210

Good

Over: Cottonwood Creek

17 Mi. S.W. Of Glendo, Platte, WY

Built 2016 Load: 42.1 t ADT: 50

Fr Cnty Rd 20

Good

Over: Popo Agie River

Mortimore Lane, Fremont, WY

Built 2012 Load: 42.3 t ADT: 426

WYO 132

Good

Over: Mill Creek

Ethete South, Fremont, WY

Built 2015 Load: 42.4 t ADT: 2,012

US 89

Good

Over: Snake River

Hoback Jct - Jackson, Teton, WY

Built 2019 Load: 42.4 t ADT: 11,439

Pa Cnty Rd 6WX

Good

Over: S Fork Shoshone River

30 mi. SW of Cody, Park, WY

Built 2020 Load: 42.4 t ADT: 177

GRAND LOOP ROAD

Good

Over: GIBBON RIVER

5.1 MI. NE OF MADISON JCT, Teton, WY

Built 2010 Load: 42.6 t ADT: 1,807

I-25 NBL

Good

Over: I-25 Service Road

Wheatland - Glendo, Platte, WY

Built 1960 Load: 42.6 t ADT: 3,174

Cr Cnty Rd 160

Good

Over: I-90

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 42.6 t ADT: 94

Showing 2,701-2,750 of 3,136 bridges

Related

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

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

What to do with this

Use Wyoming's inventory picture to drill to a county or a specific span.

  • Browse counties in Wyoming and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Wyoming Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.