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

I-80 WBL

Good

Over: Unnamed Draw

Laramie - Cheyenne, Albany, WY

Built 1946 Load: 32.7 t ADT: 7,141

WYO 59

Good

Over: Dry Fork Creek

Gillette-Montana, Campbell, WY

Built 1992 Load: 32.7 t ADT: 1,333

WYO 789

Good

Over: Robbers Gulch

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 789

Good

Over: Little Robbers Gulch

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

US 20

Good

Over: Unnamed Draw

Shoshoni-Thermopolis, Hot Springs, WY

Built 1977 Load: 32.7 t ADT: 5,794

US 16

Good

Over: Big Horn Canal

Basin-Manderson, Big Horn, WY

Built 1956 Load: 32.7 t ADT: 2,122

US 310

Good

Over: East Fork Sand Draw

Greybull-Lovell, Big Horn, WY

Built 1963 Load: 32.7 t ADT: 1,207

US 14A

Good

Over: North Fork Tongue River

Big Horn Co.Line-Burgess, Sheridan, WY

Built 1955 Load: 32.7 t ADT: 794

US 18

Good

Over: Stockpass

Orin Jct-Lusk, Niobrara, WY

Built 1970 Load: 32.7 t ADT: 2,387

WYO 193

Good

Over: Little Piney Creek

Sheridan-Buffalo, Johnson, WY

Built 1947 Load: 32.7 t ADT: 599

WYO 51

Good

Over: Unnamed Draw

Gillette-Moorcroft, Campbell, WY

Built 1952 Load: 32.7 t ADT: 1,452

WYO 111

Good

Over: Unnamed Draw

Aladdin South, Crook, WY

Built 1960 Load: 32.7 t ADT: 658

US 85

Good

Over: Beaver Creek

Mule Cr Jct-Newcastle, Weston, WY

Built 1993 Load: 32.7 t ADT: 1,079

WYO 111

Good

Over: Unnamed Draw

Aladdin South, Crook, WY

Built 1960 Load: 32.7 t ADT: 658

WYO 70

Good

Over: Savery Creek

Baggs - Encampment, Carbon, WY

Built 1997 Load: 32.7 t ADT: 613

US 14

Good

Over: Lone Tree Creek

Moorcroft-Carlile, Crook, WY

Built 1970 Load: 32.7 t ADT: 1,041

WYO 134

Good

Over: Sand Gulch

Jct US 26 - Jct WYO 133, Fremont, WY

Built 1993 Load: 32.7 t ADT: 857

WYO 291

Good

Over: Cody Canal

South Fork Road, Park, WY

Built 1995 Load: 32.7 t ADT: 1,417

WYO 291

Good

Over: Cody Canal

South Fork Road, Park, WY

Built 1995 Load: 32.7 t ADT: 1,417

WYO 136

Good

Over: Conant Creek

Riverton-Gas Hills, Fremont, WY

Built 1992 Load: 32.7 t ADT: 51

WYO 120

Good

Over: Unnamed Draw

Thermopolis-Meeteetse, Hot Springs, WY

Built 1993 Load: 32.7 t ADT: 1,423

WYO 196

Good

Over: Antelope Creek

Kaycee-Buffalo, Johnson, WY

Built 1967 Load: 32.7 t ADT: 309

WYO 215

Good

Over: Unnamed Draw

1.5 Mi S Of Albin, Laramie, WY

Built 1942 Load: 32.7 t ADT: 639

WYO 270

Good

Over: Unnamed Draw

Manville South, Niobrara, WY

Built 1956 Load: 32.7 t ADT: 275

WYO 215

Good

Over: Unnamed Draw

Albin-Pine Bluffs, Laramie, WY

Built 1994 Load: 32.7 t ADT: 639

Bh Cnty Rd R27

Good

Over: Shell Creek

2 Miles N. Of Greybull, Big Horn, WY

Built 1995 Load: 32.7 t ADT: 117

I-25 NBL

Good

Over: Antelope Creek

Kaycee - Buffalo, Johnson, WY

Built 1967 Load: 32.7 t ADT: 1,573

I-25 SBL

Good

Over: Antelope Creek

Kaycee - Buffalo, Johnson, WY

Built 1967 Load: 32.7 t ADT: 1,472

Fr Cnty Rd 54

Good

Over: Leclair Canal

Co Rd 54, Fremont, WY

Built 1994 Load: 32.7 t ADT: 764

La Cnty Rd 127-1

Good

Over: Childs Draw

Ridge Road, Laramie, WY

Built 1996 Load: 32.7 t ADT: 1,295

La Cnty Rd 127-1

Good

Over: Unnamed Draw

Ridge Road, Laramie, WY

Built 1996 Load: 32.7 t ADT: 938

Pa Cnty Rd 8VE

Good

Over: Big Sand Coulee

35 Miles North Of Cody, Park, WY

Built 1994 Load: 32.7 t ADT: 183

Sb Cnty Rd 147

Good

Over: Green River Supply Canal

10 Miles South Of Daniel, Sublette, WY

Built 1995 Load: 32.7 t ADT: 145

US 287

Good

Over: Obrian Creek

Muddy Gap-Lander, Fremont, WY

Built 1994 Load: 32.7 t ADT: 1,283

We Cnty Rd 3

Good

Over: South Beaver Creek

16 Miles S. Of Newcastle, Weston, WY

Built 1997 Load: 32.7 t ADT: 22

WYO 130

Good

Over: Elk Hollow Creek

Snowy Range Road, Carbon, WY

Built 2002 Load: 32.7 t ADT: 741

WYO 24

Good

Over: Red Canyon Creek

Hulett-Aladdin, Crook, WY

Built 1994 Load: 32.7 t ADT: 1,049

WYO 28

Good

Over: Johnnie Lee Spring

Farson-Lander, Fremont, WY

Built 1994 Load: 32.7 t ADT: 1,751

US 16

Good

Over: Unnamed Draw

Worland-Manderson, Washakie, WY

Built 1994 Load: 32.7 t ADT: 2,132

Sh Cnty Rd 1211

Good

Over: Prairie Dog Creek

3 Miles N.E. Of Sheridan, Sheridan, WY

Built 1996 Load: 32.7 t ADT: 655

WYO 191

Good

Over: Unnamed Draw

Kaycee-Mayoworth, Johnson, WY

Built 1971 Load: 32.7 t ADT: 491

WYO 212

Good

Over: Allison Draw

Cheyenne Drainage, Laramie, WY

Built 1997 Load: 32.7 t ADT: 7,590

WYO 530

Good

Over: Unnamed Draw

Green River - Manila, Sweetwater, WY

Built 1996 Load: 32.7 t ADT: 670

La Cnty Rd 143-2

Good

Over: Childs Creek

Hillsdale Road - Childs, Laramie, WY

Built 1998 Load: 32.7 t ADT: 278

Fr Cnty Rd 335

Good

Over: Coolidge Canal

2.5 Mi. S.W. Of Ethete, Fremont, WY

Built 1999 Load: 32.7 t ADT: 3,790

Sh Cnty Rd 74

Good

Over: Soldier Creek

3 Mi. W. Of Sheridan, Sheridan, WY

Built 1998 Load: 32.7 t ADT: 457

Na Cnty Rd 319

Good

Over: Casper Canal

15 Miles East Of Casper, Natrona, WY

Built 1998 Load: 32.7 t ADT: 6

E Garfield Street

Good

Over: Spring Creek

Garfield St 30Th-45Th St, Albany, WY

Built 1996 Load: 32.7 t ADT: 4,958

Old WYO 213

Good

Over: Unnamed Draw

Burns Road, Laramie, WY

Built 1999 Load: 32.7 t ADT: 1,287

Pa Cnty Rd R6A

Good

Over: Garland Canal

3 Miles Ne Of Powell, Park, WY

Built 1999 Load: 32.7 t ADT: 327

Showing 2,401-2,450 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.