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

WYO 172

Good

Over: Kirby Ditch

Lucerne - East, Hot Springs, WY

Built 1953 Load: 32.7 t ADT: 218

Cl Cnty Rd 4

Good

Over: Triton Coal Rr Spur

14 Mi Se Of Wright, Campbell, WY

Built 1998 Load: 32.7 t ADT: 916

Al Cnty Rd 519

Good

Over: Lil Laramie Riv Overflow

12 Miles NE Of Centennial, Albany, WY

Built 2001 Load: 32.7 t ADT: 34

Enzi Drive

Good

Over: Donkey Creek

1 Mi South Of Gillette, Campbell, WY

Built 1997 Load: 32.7 t ADT: 10,448

E 1st Street

Good

Over: Crow Creek

Cheyenne, Laramie, WY

Built 1999 Load: 32.7 t ADT: 2,385

Cl Cnty Rd 38N

Good

Over: Stonepile Creek

Se Gillette, Campbell, WY

Built 1999 Load: 32.7 t ADT: 5,818

US 30

Good

Over: Wildlife Crossing

1 Mile East Of Sage Jct, Lincoln, WY

Built 2001 Load: 32.7 t ADT: 1,406

I-25 NBL and SBL

Good

Over: Sand Creek

Glendo - Douglas, Converse, WY

Built 2000 Load: 32.7 t ADT: 3,990

I-90 EBL

Good

Over: Middle Fork Shell Creek

Sheridan - Buffalo, Johnson, WY

Built 2001 Load: 32.7 t ADT: 3,533

I-90 WBL

Good

Over: Middle Fork Shell Creek

Sheridan - Buffalo, Johnson, WY

Built 2001 Load: 32.7 t ADT: 3,700

Sh Cnty Rd 1211

Good

Over: Prairie Dog Creek

13 Mi Ne Of Sheridan, Sheridan, WY

Built 2001 Load: 32.7 t ADT: 655

Co Cnty Rd 37

Good

Over: BNSF Railway

20 Mi North Of Bill, Converse, WY

Built 1993 Load: 32.7 t ADT: 807

La Cnty Rd 848

Good

Over: Crow Creek

10 Mi Se Of Cheyenne, Laramie, WY

Built 2001 Load: 32.7 t ADT: 79

E 2nd Street

Good

Over: Elkhorn Creek

Casper Streets, Natrona, WY

Built 2003 Load: 32.7 t ADT: 11,792

E 2nd Street

Good

Over: Claude Creek

East Casper, Natrona, WY

Built 2004 Load: 32.7 t ADT: 11,792

Al Cnty Rd 710

Good

Over: North Laramie River

42 Mi N.E. Of Rock River, Albany, WY

Built 2002 Load: 32.7 t ADT: 17

I-80 Bus

Good

Over: Little Blacks Fork River

I-80 Jct - Fort Bridger, Uinta, WY

Built 2006 Load: 32.7 t ADT: 2,772

Fr Cnty Rd 431

Good

Over: Five Mile Creek

3 Mi East Of Midvale, Fremont, WY

Built 2005 Load: 32.7 t ADT: 34

Fr Cnty Rd 431

Good

Over: Muddy Creek

5 Miles E. Of Pavillion, Fremont, WY

Built 2005 Load: 32.7 t ADT: 34

Te Cnty Rd 44

Good

Over: Spring Creek

2 Mi Sw Of Jackson, Teton, WY

Built 2002 Load: 32.7 t ADT: 380

WYO 116 S

Good

Over: West Fork Hay Creek

Upton South, Weston, WY

Built 2005 Load: 32.7 t ADT: 286

US 26

Good

Over: Brooks Lake Creek

Moran Jct-Dubois, Fremont, WY

Built 2006 Load: 32.7 t ADT: 1,612

US 14A

Good

Over: Iron Creek

Cody - Powell, Park, WY

Built 2010 Load: 32.7 t ADT: 5,827

US 30

Good

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

US 30

Good

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

WYO 59

Good

Over: Homestead Trickle

P-43 Gillette St/Douglas, Campbell, WY

Built 2008 Load: 32.7 t ADT: 18,038

Unnamed Road

Good

Over: Unnamed Draw

Red Desert Int, Sweetwater, WY

Built 1967 Load: 32.7 t ADT: 113

WYO 72

Good

Over: Unnamed Draw

Hanna - Elk Mountain, Carbon, WY

Built 2009 Load: 32.7 t ADT: 176

Fr Cnty Rd 430

Good

Over: Five Mile Creek

6 Mi W Of Shoshoni, Fremont, WY

Built 2008 Load: 32.7 t ADT: 168

Cl Cnty Rd 90

Good

Over: Donkey Creek

3 Mi East Of Rozet, Campbell, WY

Built 2009 Load: 32.7 t ADT: 150

La Cnty Rd 124-2

Good

Over: Nine Mile Draw

5 Miles North Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 1,104

La Cnty Rd 124-2

Good

Over: Lodgepole Creek Trib

6.6 Mi North Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 1,104

La Cnty Rd 124-2

Good

Over: Lodgepole Creek Trib

8 Mi N Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 474

I-80 EBL

Good

Over: US 287 (East Cedar St)

Rawlins Marginal, Carbon, WY

Built 2010 Load: 32.7 t ADT: 6,494

WYO 59

Good

Over: Tisdale Creek

Douglas - Gillette, Campbell, WY

Built 2011 Load: 32.7 t ADT: 5,962

Go Cnty Rd 42C

Good

Over: Horse Creek

Goshen County, Goshen, WY

Built 2010 Load: 32.7 t ADT: 10

La Cnty Rd 769

Good

Over: Allison Draw

Cheyenne Streets, Laramie, WY

Built 2009 Load: 32.7 t ADT: 201

La Cnty Rd 451

Good

Over: Allison Draw

Cheyenne, Laramie, WY

Built 2009 Load: 32.7 t ADT: 201

WYO 789

Good

Over: Wildlife Crossing

Creston Jct - Baggs, Carbon, WY

Built 2009 Load: 32.7 t ADT: 1,793

Cb Cnty Rd 401

Good

Over: Sage Creek

25 Mi S Of Rawlins, Carbon, WY

Built 2010 Load: 32.7 t ADT: 71

Cb Cnty Rd 401

Good

Over: Little Sage Creek

21 Mi S Of Rawlins, Carbon, WY

Built 2010 Load: 32.7 t ADT: 355

US 26

Good

Over: Brown Draw

Riverton - Shoshoni, Fremont, WY

Built 2011 Load: 32.7 t ADT: 5,796

US 26

Good

Over: Wildlife Crossing

Moran Jct - Dubois, Teton, WY

Built 2011 Load: 32.7 t ADT: 1,612

Sb Cnty Rd 136

Good

Over: Unnamed Draw

7 Mi Sw Of Boulder, Sublette, WY

Built 2011 Load: 32.7 t ADT: 260

Cl Cnty Rd 94

Good

Over: Donkey Creek

13 Miles E Of Gillette, Campbell, WY

Built 2010 Load: 32.7 t ADT: 98

WYO 789

Good

Over: Wildlife Crossing

Creston Jct - Baggs, Carbon, WY

Built 2012 Load: 32.7 t ADT: 1,793

WYO 310

Good

Over: WY Development Co Cnl 2

Wheatland, Platte, WY

Built 2015 Load: 32.7 t ADT: 214

WYO 130

Good

Over: South Brush Creek

12.58 Mi. E. 130 230 Jct, Carbon, WY

Built 2012 Load: 32.7 t ADT: 723

Na Cnty Rd 305

Good

Over: Unnamed Draw

Casper, Natrona, WY

Built 2015 Load: 32.7 t ADT: 5,027

Shoshone Avenue

Good

Over: Donkey Creek

Gillette Shoshone Ave, Campbell, WY

Built 2007 Load: 32.7 t ADT: 5,072

Showing 2,451-2,500 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.