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

Sh Cnty Rd 145

Good

Over: South Piney Creek

Story, Sheridan, WY

Built 1986 Load: 42.6 t ADT: 387

US 14

Good

Over: 50 Mile Creek

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 42.6 t ADT: 2,487

US 30

Good

Over: Rock Creek

Rock River Streets, Albany, WY

Built 1997 Load: 42.6 t ADT: 898

Go Cnty Rd 53B

Good

Over: Horse Creek

4 Mi South Of Huntley, Goshen, WY

Built 2004 Load: 42.6 t ADT: 68

Ln Cnty Rd 152

Good

Over: Cottonwood Creek

Smoot, Lincoln, WY

Built 2004 Load: 42.6 t ADT: 120

4421: SHEEPS TRAIL

Good

Over: Big Sandy River

7 mi SE of Farson WY, Sweetwater, WY

Built 2014 Load: 42.8 t ADT: 25

Pa Cnty Rd 6BU

Good

Over: N Fork Shoshone River

24 Miles West Of Cody, Park, WY

Built 2014 Load: 42.8 t ADT: 128

WYO 213

Good

Over: UPRR / Childs Draw

I-80 - Burns South Road, Laramie, WY

Built 2012 Load: 43.1 t ADT: 809

US 310

Good

Over: BNSF Railway

Lovell - Deaver, Big Horn, WY

Built 2019 Load: 43.1 t ADT: 2,230

WYO 215

Good

Over: Lodgepole Creek

North of Pine Bluffs, Laramie, WY

Built 2019 Load: 43.1 t ADT: 731

WYO 223

Good

Over: UPRR

Jct I-25 - Jct US 85, Laramie, WY

Built 2023 Load: 43.1 t ADT: 497

WYO 193

Good

Over: Piney Creek

Jct I-90 - Story, Johnson, WY

Built 2017 Load: 43.4 t ADT: 599

US 14

Good

Over: Dry Creek

Cody - Jct WYO 310, Park, WY

Built 1960 Load: 43.5 t ADT: 1,369

I-25 NBL

Good

Over: Pl CR 147 (Collins Road)

Glendo - Douglas, Platte, WY

Built 1974 Load: 43.5 t ADT: 3,471

Wa Cnty Rd L7

Good

Over: Lower Hanover Canal

5 Mi. N.E. Of Worland, Washakie, WY

Built 1997 Load: 43.5 t ADT: 64

Cr Cnty Rd 200

Good

Over: Little Missouri River

11 Miles North Of Oshoto, Crook, WY

Built 2000 Load: 43.5 t ADT: 14

Hs Cnty Rd 27

Good

Over: Owl Creek

8 Miles Nw Of Thermopolis, Hot Springs, WY

Built 2001 Load: 43.5 t ADT: 116

I-80 EBL

Good

Over: 9th Street

Rock Springs Marginal, Sweetwater, WY

Built 2007 Load: 43.5 t ADT: 8,122

I-80 WBL

Good

Over: 9th Street

Rock Springs Marginal, Sweetwater, WY

Built 2008 Load: 43.5 t ADT: 8,539

NFSR 225

Good

Over: SOUTH FRENCH CREEK

8.5 MI. S. FROM SH 130, Carbon, WY

Built 1963 Load: 43.7 t ADT: 11

I-80 EBL

Good

Over: Snowy Range Road

Laramie Marginal, Albany, WY

Built 1997 Load: 44.1 t ADT: 6,472

WYO 376

Good

Over: UPRR

Rock Springs Circumferent, Sweetwater, WY

Built 1977 Load: 44.5 t ADT: 14,824

US 14

Good

Over: Grinnell Creek

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 44.5 t ADT: 2,487

WYO 411

Good

Over: Smiths Fork River

Milburne Road, Uinta, WY

Built 1999 Load: 44.5 t ADT: 737

Unnamed Road

Good

Over: Boozer Creek

Saratoga Streets, Carbon, WY

Built 1999 Load: 44.5 t ADT: 59

S Sheridan Avenue

Good

Over: Little Goose Creek

Sheridan, Sheridan, WY

Built 2002 Load: 44.5 t ADT: 3,697

Jo Cnty Rd 43

Good

Over: Crazy Woman Creek

13 Mi Sw Of Buffalo, Johnson, WY

Built 2007 Load: 44.5 t ADT: 37

Pa Cnty Rd 13A

Good

Over: Garland Canal

Cody - Powell, Park, WY

Built 2005 Load: 44.7 t ADT: 128

Ui Cnty Rd 221

Good

Over: Blacks Fork River

Fort Bridger - Carter Roa, Uinta, WY

Built 2013 Load: 45.0 t ADT: 71

WYO 433

Good

Over: Tenmile Creek

Worland - Manderson, Washakie, WY

Built 2023 Load: 45.0 t ADT: 1,383

MOOSE WILSON ROAD

Good

Over: LAKE CREEK

0.6 miles west of Moose J, Teton, WY

Built 2005 Load: 45.4 t ADT: 200

WYO 59

Good

Over: Corral Creek

Gillette - Montana Sta, Campbell, WY

Built 2005 Load: 45.4 t ADT: 1,333

Ranch Road

Good

Over: I-25

Casper - Kaycee, Natrona, WY

Built 2002 Load: 45.4 t ADT: 87

WYO 51

Good

Over: Donkey Creek

5 Mi East Of Gillette, Campbell, WY

Built 2002 Load: 45.4 t ADT: 2,954

Na Cnty Rd 316

Good

Over: Casper Canal

15 Mi Sw Of Casper, Natrona, WY

Built 2004 Load: 45.4 t ADT: 5

WYO 414

Good

Over: Cottonwood Creek

Mtn View - Lone Tree, Uinta, WY

Built 2007 Load: 45.4 t ADT: 593

I-80 EBL

Good

Over: Swanson Drive

Rock Springs Marginal, Sweetwater, WY

Built 2007 Load: 45.4 t ADT: 8,122

I-80 WBL

Good

Over: Swanson Drive

Rock Springs Marginal, Sweetwater, WY

Built 2008 Load: 45.4 t ADT: 8,539

Na Cnty Rd 106

Good

Over: BNSF Railway

Powder River Streets, Natrona, WY

Built 2022 Load: 45.4 t ADT: 20

Ln Cnty Rd 142

Good

Over: Crow Creek

1 Mile West Of Fairview, Lincoln, WY

Built 1997 Load: 45.7 t ADT: 251

I-80 EBL

Good

Over: WYO 413

Evanston - Green River, Uinta, WY

Built 2017 Load: 45.7 t ADT: 6,830

I-80 WBL

Good

Over: WYO 413

Evanston - Green River, Uinta, WY

Built 2018 Load: 45.7 t ADT: 6,458

US 20

Good

Over: Niobrara River

Lusk - Nebr Line, Niobrara, WY

Built 2019 Load: 46.0 t ADT: 534

US 14

Good

Over: South Wildcat Creek

Ucross - Jct WYO 59, Campbell, WY

Built 2020 Load: 46.0 t ADT: 1,318

WYO 433

Good

Over: Big Horn Canal

Worland - Manderson, Washakie, WY

Built 2023 Load: 46.0 t ADT: 1,383

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

Ui Cnty Rd 217

Good

Over: Blacks Fork River

Millburne-Fort Bridger, Uinta, WY

Built 1988 Load: 46.3 t ADT: 71

US 20/26/87

Good

Over: Big Muddy Creek

Glenrock-Casper, Converse, WY

Built 1996 Load: 46.3 t ADT: 3,099

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

S Buritt Avenue

Good

Over: Clear Creek

Buffalo Streets, Johnson, WY

Built 2004 Load: 46.3 t ADT: 89

Showing 2,751-2,800 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.