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

Park Street

Fair

Over: Little Goose Creek

City Of Sheridan, Sheridan, WY

Built 1996 Load: 40.5 t ADT: 733

I-25 NBL

Fair

Over: BNSF Railway

Colorado Line - Cheyenne, Laramie, WY

Built 1964 Load: 40.8 t ADT: 9,466

I-25 NBL

Fair

Over: US 26

Wheatland - Glendo, Platte, WY

Built 1966 Load: 40.8 t ADT: 3,312

I-25 NBL

Fair

Over: Cottonwood Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 40.8 t ADT: 3,174

I-25 / US 87 Bus

Fair

Over: Clear Creek

Buffalo Main Street, Johnson, WY

Built 1975 Load: 40.8 t ADT: 5,720

US 191

Fair

Over: Little Sandy River

Rock Springs - Farson, Sweetwater, WY

Built 1958 Load: 40.8 t ADT: 3,089

US 16

Fair

Over: Tensleep Creek

Worland - Buffalo, Washakie, WY

Built 1960 Load: 40.8 t ADT: 1,228

US 287

Fair

Over: Willow Creek

WYO 28 Jct - Lander, Fremont, WY

Built 1982 Load: 40.8 t ADT: 2,100

I-180 NBL and SBL

Fair

Over: Deming Drive

Cheyenne Central Ave, Laramie, WY

Built 1980 Load: 40.8 t ADT: 21,016

WYO 51

Fair

Over: BNSF Railway

Gillette - Moorcroft, Campbell, WY

Built 1980 Load: 40.8 t ADT: 1,452

WYO 370

Fair

Over: Bitter Creek

Rock Springs Airport Road, Sweetwater, WY

Built 1984 Load: 40.8 t ADT: 1,376

Cl Cnty Rd 53

Fair

Over: BNSF Railway

25 Mi. S.S.E. Of Gillette, Campbell, WY

Built 1981 Load: 40.8 t ADT: 150

US 14A

Fair

Over: Sidon Canal

Garland-Byron, Big Horn, WY

Built 1984 Load: 40.8 t ADT: 1,887

WYO 320

Fair

Over: North Laramie River

Wheatland-Dwyer Jct., Platte, WY

Built 1986 Load: 40.8 t ADT: 562

E 8th Street

Fair

Over: Big Goose Creek

8Th Street - Sheridan, Sheridan, WY

Built 1986 Load: 40.8 t ADT: 1,334

Pa Cnty Rd L14B

Fair

Over: Willwood Canal

2 Miles S.W. Of Ralston, Park, WY

Built 1988 Load: 40.8 t ADT: 206

WYO 133

Fair

Over: Pilot Canal

Kinnear-Pavillion Road, Fremont, WY

Built 1989 Load: 40.8 t ADT: 1,130

WYO 191

Fair

Over: North Fork Powder River

Kaycee-Mayoworth, Johnson, WY

Built 1999 Load: 40.8 t ADT: 68

US 14

Fair

Over: Unnamed Draw

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 40.8 t ADT: 2,487

US 14

Fair

Over: Gunbarrel Creek

36 Mi. West Of Cody, Park, WY

Built 2000 Load: 40.8 t ADT: 2,487

US 14

Fair

Over: Clearwater Creek

Yellowstone Park - Cody, Park, WY

Built 1998 Load: 40.8 t ADT: 3,071

WYO 291

Fair

Over: Cody Canal W Sulphur Crk

South Fork Road, Park, WY

Built 1995 Load: 40.8 t ADT: 3,334

Ni Cnty Rd 14

Fair

Over: Lightning Creek

N. Lance Creek Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 29

Ni Cnty Rd 14

Fair

Over: Cow Creek

N. Lance Creek Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 29

WYO 433

Fair

Over: Big Horn Canal

Worland North, Washakie, WY

Built 1995 Load: 40.8 t ADT: 764

La Cnty Rd 926

Fair

Over: I-25

Cheyenne Marginal, Laramie, WY

Built 1995 Load: 40.8 t ADT: 1,511

WYO 450

Fair

Over: South Beaver Creek

Newcastle-Reno Jct Road, Weston, WY

Built 2000 Load: 40.8 t ADT: 679

Cr Cnty Rd 200

Fair

Over: Little Missouri River

18 Miles North Of Oshoto, Crook, WY

Built 2000 Load: 40.8 t ADT: 14

I-80 WBL

Fair

Over: US 191

Rock Springs Marginal, Sweetwater, WY

Built 2005 Load: 40.8 t ADT: 9,377

Co Cnty Rd 24

Fair

Over: Roaring Fork Creek

28 Mi Sw Of Douglas, Converse, WY

Built 2004 Load: 40.8 t ADT: 52

Ln Cnty Rd 173S

Fair

Over: East Side Canal

1 Mile South Of Thayne, Lincoln, WY

Built 2006 Load: 40.8 t ADT: 120

Warren Avenue

Fair

Over: Crow Creek

Cheyenne Warren Avenue, Laramie, WY

Built 2008 Load: 40.8 t ADT: 498

I-80 EBL

Fair

Over: Sw CR 67 (Tipton North)

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 Load: 41.2 t ADT: 6,410

I-80 WBL

Fair

Over: Sw CR 67 (Tipton North)

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 Load: 41.2 t ADT: 6,376

I-80 EBL

Fair

Over: Red Desert Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 Load: 41.2 t ADT: 6,402

I-80 WBL

Fair

Over: Red Desert Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 Load: 41.2 t ADT: 6,374

I-90 WBL

Fair

Over: BNSF Railway

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 41.2 t ADT: 3,644

I-25 SBL

Fair

Over: North Platte River

Casper Marginal, Natrona, WY

Built 1956 Load: 41.4 t ADT: 13,026

Co Cnty Rd 2

Fair

Over: North Platte River

Anderson Dairy Road, Converse, WY

Built 1996 Load: 41.4 t ADT: 716

I-80 EBL

Fair

Over: Ui CR 202(Bigelow Bench)

Evanston - Green River, Uinta, WY

Built 1959 Load: 41.5 t ADT: 6,642

N Fork Road

Fair

Over: I-25

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 41.7 t ADT: 29

WYO 530 NBL

Fair

Over: Green River

Green River, Sweetwater, WY

Built 1953 Load: 41.7 t ADT: 9,742

Cl Cnty Rd 65

Fair

Over: BNSF Railway

12 Mi. N.E. Of Reno Jct, Campbell, WY

Built 1977 Load: 41.7 t ADT: 29

Pa Cnty Rd L10D

Fair

Over: Heart Mountain Canal

7.5 Mi. W. Of Ralston, Park, WY

Built 1977 Load: 41.7 t ADT: 233

US 89

Fair

Over: Swift Creek

Afton-Thayne, Lincoln, WY

Built 1987 Load: 41.7 t ADT: 11,742

WYO 338

Fair

Over: Tongue River

Decker Road, Sheridan, WY

Built 1989 Load: 41.7 t ADT: 913

US 30

Fair

Over: Blacks Fork River

Kemmerer-Granger Jct., Sweetwater, WY

Built 1998 Load: 41.7 t ADT: 1,496

Go Cnty Rd 10

Fair

Over: Bear Creek

Bear Creek Road, Goshen, WY

Built 1998 Load: 41.7 t ADT: 9

I-90 EBL

Fair

Over: WYO 336 (5th Street)

Sheridan Marginal, Sheridan, WY

Built 1995 Load: 41.7 t ADT: 4,669

I-90 WBL

Fair

Over: WYO 336 (5th Street)

Sheridan Marginal, Sheridan, WY

Built 1995 Load: 41.7 t ADT: 5,095

Showing 1,701-1,750 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.