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

Fr Cnty Rd 238

Fair

Over: Big Wind River

2 Mi. S.E. Of Dubois, Fremont, WY

Built 1921 Load: 14.4 t ADT: 80

Bh Cnty Rd 229

Fair

Over: Elk Creek

5 Mi. S. Of Basin, Big Horn, WY

Built 1940 Load: 14.5 t ADT: 339

Ui Cnty Rd 263

Fair

Over: Smiths Fork River

1 Mi. N. Of Robertson, Uinta, WY

Built 1984 Load: 14.5 t ADT: 57

NFSR 807

Fair

Over: BATTLE CREEK

1.1 MI. S OF BATTLE CK CG, Carbon, WY

Built 1952 Load: 14.6 t ADT: 50

FDR

Fair

Over: LOUIS CREEK

NO DATA ENTERED, Fremont, WY

Built 1953 Load: 14.6 t ADT: 50

FDR 349

Fair

Over: N. PAINTROCK CREEK

3.1 MI EAST OF USFSRD 352, Big Horn, WY

Built 1992 Load: 14.9 t ADT: 10

FOREST ROAD 10152

Fair

Over: GREYS RIVER

T33N R116W S21, Lincoln, WY

Built 1996 Load: 14.9 t ADT: 50

Pa Cnty Rd 6NX

Fair

Over: Rattlesnake Creek

10 Mi W Of Cody, Park, WY

Built 1930 Load: 14.9 t ADT: 65

3rd Street

Fair

Over: Big Wind River

Dubois, Fremont, WY

Built 1935 Load: 15.3 t ADT: 270

Go Cnty Rd 33F

Fair

Over: Interstate Canal

3.5 Mi N. Of Lingle, Goshen, WY

Built 1924 Load: 15.3 t ADT: 168

FDR 740

Fair

Over: HOBACK RIVER

T35N R115W SECTION 2, Sublette, WY

Built 1980 Load: 15.4 t ADT: 50

GRAND LOOP ROAD

Fair

Over: BERYL SPRING OVERFLOW

8.2 MI. NE OF MADISON JCT, Teton, WY

Built 1962 Load: 15.4 t ADT: 1,807

FOREST ROAD 10046

Fair

Over: NORTH PINEY CREEK

23 MI. W. OF BIG PINEY WY, Sublette, WY

Built 1957 Load: 15.9 t ADT: 50

Pl Cnty Rd 87

Fair

Over: Canal No 1

7 Miles S. Of Wheatland, Platte, WY

Built 1931 Load: 16.0 t ADT: 131

US 30 Service Road

Fair

Over: Spring Creek

Cokeville, Lincoln, WY

Built 1935 Load: 16.0 t ADT: 26

ARTIST POINT ROAD

Fair

Over: YELLOWSTONE RIVER

2 MI. S. OF CANYON JCT., Park, WY

Built 1962 Load: 16.3 t ADT: 2,000

Sh Cnty Rd 98

Fair

Over: Wolf Creek

4 Miles S. Of Ranchester, Sheridan, WY

Built 1935 Load: 16.3 t ADT: 23

FR 10170

Fair

Over: WAGON CREEK

11 MI. N. OF FOREST BOUN., Sublette, WY

Built 1957 Load: 16.5 t ADT: 50

Sh Cnty Rd 151

Fair

Over: West Fork Dow Prong

T55N R082W S29, Sheridan, WY

Built 1967 Load: 16.7 t ADT: 54

Go Cnty Rd 76A

Fair

Over: Fort Laramie Canal

5 Miles W. Of Lingle, Goshen, WY

Built 1959 Load: 16.7 t ADT: 168

FDR

Fair

Over: HORSE CREEK

NO DATA ENTERED, Fremont, WY

Built 1955 Load: 16.8 t ADT: 50

WYO 432

Fair

Over: Nowater Creek

Worland - Nieber, Washakie, WY

Built 1952 Load: 17.0 t ADT: 511

WYO 410

Fair

Over: Blacks Fork Creek OvrFlo

Robertson - West, Uinta, WY

Built 1960 Load: 17.3 t ADT: 175

FOREST ROAD 10389

Fair

Over: NORTH HORSE CREEK

18 MI. W. OF DANIEL JCT., Sublette, WY

Built 1956 Load: 17.5 t ADT: 50

Ni Cnty Rd 6

Fair

Over: Hungry Hollow

6 Mi W. Of Mule Crk Jct, Niobrara, WY

Built 1983 Load: 17.6 t ADT: 33

Wa Cnty Rd R10

Fair

Over: Lower Hanover Canal

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

Built 1973 Load: 18.0 t ADT: 279

I-80 Bus

Fair

Over: Blacks Fork Canal

Fort Bridger - Lyman, Uinta, WY

Built 1961 Load: 18.3 t ADT: 7,365

WYO 32

Fair

Over: Coon Creek

Lovell - Emblem, Big Horn, WY

Built 1954 Load: 18.3 t ADT: 346

La Cnty Rd 236-1

Fair

Over: Little Horse Creek

T18N R062W S17, Laramie, WY

Built 1920 Load: 18.3 t ADT: 28

Bh Cnty Rd R52

Fair

Over: Medicine Lodge Creek

Medicine Lodge State Park, Big Horn, WY

Built 1980 Load: 18.3 t ADT: 227

FOREST ROAD 10001

Fair

Over: GREYS RIVER

6 MI. EAST OF ALPINE WY., Lincoln, WY

Built 1963 Load: 18.5 t ADT: 50

WYO 30

Fair

Over: McKenney Creek

Basin - Jct US 14/16/20, Big Horn, WY

Built 1960 Load: 18.6 t ADT: 933

NFSR 633

Fair

Over: HORSESHOE CREEK

6 MI N OF HARRIS PARK, Albany, WY

Built 1956 Load: 18.8 t ADT: 50

FDR

Fair

Over: WILLOW CREEK

NO DATA ENTERED, Park, WY

Built 1981 Load: 18.8 t ADT: 50

U.S. ROUTE 89

Fair

Over: ARIZONA CREEK

5 miles north of Colter B, Teton, WY

Built 1935 Load: 19.0 t ADT: 5,000

FOREST ROAD 30519

Fair

Over: GRANITE CREEK

NO DATA ENTERED, Teton, WY

Built 2003 Load: 19.1 t ADT: 450

WYO 194

Fair

Over: Prairie Dog Creek Ditch

Story - West, Sheridan, WY

Built 1962 Load: 19.1 t ADT: 1,497

WYO 51

Fair

Over: Donkey Creek

Gillette - Moorcroft, Campbell, WY

Built 1956 Load: 19.2 t ADT: 1,323

US 310

Fair

Over: Sage Creek

Deaver - Mont Line, Park, WY

Built 1949 Load: 19.2 t ADT: 1,619

WYO 313

Fair

Over: Chugwater Creek

Chugwater, Platte, WY

Built 1954 Load: 19.2 t ADT: 303

US 14

Fair

Over: S Fork Sundance Creek

Sundance - Jct I-90, Crook, WY

Built 1954 Load: 19.6 t ADT: 3,417

Co Rd 45S

Fair

Over: Cow Creek

46 Miles N.E. Of Douglas, Converse, WY

Built 1977 Load: 19.6 t ADT: 260

NFSR 512

Fair

Over: DOUGLAS CREEK

6.9 MI. NW OF FOXPARK WY, Albany, WY

Built 1956 Load: 19.8 t ADT: 78

FDR

Fair

Over: NORTH FORK SHOSHONE

NO DATA ENTERED, Park, WY

Built 1970 Load: 19.8 t ADT: 50

WYO 194

Fair

Over: Prairie Dog Creek Ditch

Story - West, Sheridan, WY

Built 1962 Load: 20.0 t ADT: 628

Go Cnty Rd 78A

Fair

Over: Gid Canal Flood Control

3 Mi S W Of Lingle, Goshen, WY

Built 1950 Load: 20.0 t ADT: 68

US 189

Fair

Over: North Piney Creek

Kemmerer - Daniel Jct, Sublette, WY

Built 1960 Load: 20.2 t ADT: 5,164

WYO 374

Fair

Over: Unnamed Draw

Jct I-80 - Green River, Sweetwater, WY

Built 1942 Load: 20.2 t ADT: 2,369

Na Cnty Rd 209

Fair

Over: M Casper Creek

0.30 Miles S. Of Natrona, Natrona, WY

Built 1970 Load: 20.2 t ADT: 23

Ames Avenue

Fair

Over: Unnamed Draw

T13N R066W S06, Laramie, WY

Built 1935 Load: 20.2 t ADT: 7,502

Showing 51-100 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.