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 130

Fair

Over: Lake Creek

Walcott Jct-Saratoga, Carbon, WY

Built 1979 Load: 32.7 t ADT: 2,065

WYO 120

Fair

Over: Dry Creek

Meeteetse-Cody, Park, WY

Built 1960 Load: 32.7 t ADT: 1,925

US 20

Fair

Over: Birdseye Creek

Thermopolis-Shoshoni, Fremont, WY

Built 1952 Load: 32.7 t ADT: 2,647

US 14

Fair

Over: Five Mile Creek

Dayton-Ranchester, Sheridan, WY

Built 1960 Load: 32.7 t ADT: 4,781

WYO 59

Fair

Over: Unnamed Draw

Douglas-Bill, Converse, WY

Built 1981 Load: 32.7 t ADT: 2,840

WYO 59

Fair

Over: Dry Fork Creek

Gillette-Montana, Campbell, WY

Built 1960 Load: 32.7 t ADT: 1,333

WYO 336

Fair

Over: Negro Draw

Sheridan-Ulm, Sheridan, WY

Built 1995 Load: 32.7 t ADT: 189

WYO 113

Fair

Over: Wind Creek

Pine Haven Road, Crook, WY

Built 1991 Load: 32.7 t ADT: 1,035

Sh Cnty Rd 114

Fair

Over: Prairie Dog Creek

Coutant Creek Rd, Sheridan, WY

Built 1992 Load: 32.7 t ADT: 76

Al Cnty Rd 51

Fair

Over: Laramie River

7 Miles N. Of Laramie, Albany, WY

Built 1992 Load: 32.7 t ADT: 154

US 14

Fair

Over: Donkey Creek

Ucross-Clearmont, Sheridan, WY

Built 1980 Load: 32.7 t ADT: 829

WYO 341

Fair

Over: Deadman Creek

1 mi north of Arvada, Sheridan, WY

Built 1980 Load: 32.7 t ADT: 353

US 189

Fair

Over: Muddy Creek

9 Miles N Of Marbleton, Sublette, WY

Built 2000 Load: 32.7 t ADT: 1,261

US 26

Fair

Over: Big Wind River

Moran Jct-Dubois, Fremont, WY

Built 1993 Load: 32.7 t ADT: 2,037

US 26

Fair

Over: Big Wind River

Moran Jct-Dubois, Fremont, WY

Built 1993 Load: 32.7 t ADT: 2,037

WYO 70

Fair

Over: West Side Canal

Baggs-Dixon, Carbon, WY

Built 1993 Load: 32.7 t ADT: 835

WYO 95

Fair

Over: BNSF Railway

Glenrock-Ross, Converse, WY

Built 1994 Load: 32.7 t ADT: 1,551

WYO 192

Fair

Over: 15 Mile Draw

10 Miles S.E. Of Kaycee, Johnson, WY

Built 1992 Load: 32.7 t ADT: 229

US 85

Fair

Over: Robbers Roost Creek

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1992 Load: 32.7 t ADT: 1,079

Sh Cnty Rd 1260

Fair

Over: Tongue River

Acme Interchange, Sheridan, WY

Built 1992 Load: 32.7 t ADT: 68

I-80 EBL and WBL

Fair

Over: Sugar Creek

Rawlins - Laramie, Carbon, WY

Built 2000 Load: 32.7 t ADT: 7,360

Cr Cnty Rd 142

Fair

Over: Redwater Creek

1.5 Miles N. Of Beulah, Crook, WY

Built 1994 Load: 32.7 t ADT: 77

Pa Cnty Rd 6QS

Fair

Over: Cody Canal

9 Miles S.W. Of Cody, Park, WY

Built 1995 Load: 32.7 t ADT: 90

US 89

Fair

Over: Etna Irrigation Canal

Afton-Alpine Jct, Lincoln, WY

Built 1994 Load: 32.7 t ADT: 6,794

I-80 Service Road

Fair

Over: Unnamed Draw

Rawlins West, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6

WYO 219

Fair

Over: Dry Creek

Cheyenne, Laramie, WY

Built 1995 Load: 32.7 t ADT: 17,561

WYO 212

Fair

Over: Allison Draw

Cheyenne, Laramie, WY

Built 2001 Load: 32.7 t ADT: 8,113

WYO 220

Fair

Over: Garden Creek

Casper, Natrona, WY

Built 2001 Load: 32.7 t ADT: 26,189

Old WYO 213

Fair

Over: North Fork Muddy Creek

Burns Road, Laramie, WY

Built 1999 Load: 32.7 t ADT: 1,287

US 14

Fair

Over: Dead Mans Draw

Sheridan-Gillette, Sheridan, WY

Built 2000 Load: 32.7 t ADT: 304

Ui Cnty Rd 173

Fair

Over: Sulphur Creek

13 Mi Se Of Evanston, Uinta, WY

Built 1999 Load: 32.7 t ADT: 77

La Cnty Rd 207-A

Fair

Over: Allison Draw

Cheyenne, Laramie, WY

Built 2004 Load: 32.7 t ADT: 1,338

Cl Cnty Rd 38N

Fair

Over: Donkey Creek

S E Gillette, Campbell, WY

Built 1999 Load: 32.7 t ADT: 5,818

US 287

Fair

Over: Camp Creek

Rawlins-Muddy Gap, Carbon, WY

Built 1959 Load: 32.7 t ADT: 2,395

Pa Cnty Rd XUX

Fair

Over: Squaw Creek

50 Mi Nw Of Cody, Park, WY

Built 2000 Load: 32.7 t ADT: 42

WYO 210

Fair

Over: Diamond Creek

Happy Jack Road, Laramie, WY

Built 2004 Load: 32.7 t ADT: 2,438

WYO 270

Fair

Over: Provost Draw

Lance Creek East Section, Niobrara, WY

Built 2004 Load: 32.7 t ADT: 208

US 189

Fair

Over: Willow Creek

Kemmerer - Labarge Road, Lincoln, WY

Built 2003 Load: 32.7 t ADT: 627

US 14A

Fair

Over: Alkali Creek

Cody - Powell, Park, WY

Built 2005 Load: 32.7 t ADT: 5,827

Te Cnty Rd 16

Fair

Over: Grand Teton Canal

1 Mi West Of Alta, Teton, WY

Built 2005 Load: 32.7 t ADT: 445

Na Cnty Rd 403

Fair

Over: Stinking Creek

23 Mi Sw Of Casper, Natrona, WY

Built 2007 Load: 32.7 t ADT: 2

US 14A

Fair

Over: Buck Creek

Cody - Powell, Park, WY

Built 2010 Load: 32.7 t ADT: 5,827

US 30

Fair

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

US 30

Fair

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

US 30

Fair

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

US 30

Fair

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

Sinclair Street

Fair

Over: Unnamed Draw

Gillette, Campbell, WY

Built 2009 Load: 32.7 t ADT: 2,325

US 16

Fair

Over: East Tensleep Creek

Tensleep - Buffalo, Washakie, WY

Built 2012 Load: 32.7 t ADT: 797

La Cnty Rd 124-2

Fair

Over: Nine Mile Draw Tributary

6.5 Miles N Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 1,104

I-80 EBL and WBL

Fair

Over: Unnamed Draw

Rock Springs - Rawlins, Sweetwater, WY

Built 1967 Load: 32.7 t ADT: 6,412

Showing 1,151-1,200 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.