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

Na Cnty Rd 125

Fair

Over: Middle Fork Casper Creek

19 Miles N.W. Of Casper, Natrona, WY

Built 1973 Load: 32.7 t ADT: 124

Cr Cnty Rd 180

Fair

Over: Inyan Kara Creek

6.5M N.E. Of Pine Haven, Crook, WY

Built 1978 Load: 32.7 t ADT: 126

Skyline Drive

Fair

Over: Cody Canal

Skyline Drive Cody, Park, WY

Built 1970 Load: 32.7 t ADT: 1,161

WYO 331

Fair

Over: Big Goose Creek

Loucks Street Sheridan, Sheridan, WY

Built 1970 Load: 32.7 t ADT: 4,744

E Pershing Avenue

Fair

Over: Wyoming Central Canal

Pershing Avenue Riverton, Fremont, WY

Built 1965 Load: 32.7 t ADT: 2,512

WYO 89

Fair

Over: Red Willow Creek

Evanston - Utah Line, Uinta, WY

Built 1981 Load: 32.7 t ADT: 1,935

Al Cnty Rd 513

Fair

Over: Little Laramie River

12 Mi East Of Centennial, Albany, WY

Built 1979 Load: 32.7 t ADT: 128

La Cnty Rd 207-1

Fair

Over: Crow Creek

7 Mi. N.W. Of Carpenter, Laramie, WY

Built 1950 Load: 32.7 t ADT: 66

La Cnty Rd 154-1

Fair

Over: Muddy Creek

13 Mi. S.W. Of Pine Bluff, Laramie, WY

Built 1972 Load: 32.7 t ADT: 295

La Cnty Rd 156-2

Fair

Over: Muddy Creek

12 Mi. Sw Of Pine Bluffs, Laramie, WY

Built 1972 Load: 32.7 t ADT: 207

La Cnty Rd 159-2

Fair

Over: Muddy Creek

10 Mi. Sw Of Pine Bluffs, Laramie, WY

Built 1973 Load: 32.7 t ADT: 75

La Cnty Rd 154-1

Fair

Over: Unnamed Draw

10 Mi. N. Of Egbert, Laramie, WY

Built 1973 Load: 32.7 t ADT: 295

La Cnty Rd 148-4

Fair

Over: Lodgepole Creek

4 Miles N.W. Of Burns, Laramie, WY

Built 1973 Load: 32.7 t ADT: 79

La Cnty Rd 146-2

Fair

Over: Chivington Draw

11 Miles N. Of Burns, Laramie, WY

Built 1973 Load: 32.7 t ADT: 79

La Cnty Rd 236-1

Fair

Over: Little Horse Creek

2.5 Mi. Se Of Meriden, Laramie, WY

Built 1972 Load: 32.7 t ADT: 28

La Cnty Rd 152-6

Fair

Over: Horse Creek

2 Mi. S.E. Of Meriden, Laramie, WY

Built 1972 Load: 32.7 t ADT: 79

La Cnty Rd 150-6

Fair

Over: Horse Creek

3 Mi. N.W. Of Meridan, Laramie, WY

Built 1972 Load: 32.7 t ADT: 20

La Cnty Rd 235

Fair

Over: Horse Creek

12 Mi. W. Of Meriden, Laramie, WY

Built 1972 Load: 32.7 t ADT: 79

La Cnty Rd 233

Fair

Over: Horse Creek

14 Mi. S.W. Of Meridan, Laramie, WY

Built 1960 Load: 32.7 t ADT: 295

La Cnty Rd 128-2

Fair

Over: Lodgepole Creek

5 Miles N. Of Cheyenne, Laramie, WY

Built 1973 Load: 32.7 t ADT: 211

La Cnty Rd 103-1

Fair

Over: Chugwater Creek

T18N R070W S04, Laramie, WY

Built 1973 Load: 32.7 t ADT: 33

Pl Cnty Rd 104

Fair

Over: Stewart Draw

T21N R067W S30, Platte, WY

Built 1965 Load: 32.7 t ADT: 131

Pl Cnty Rd 109S

Fair

Over: Laramie River

T26N R065W S32, Platte, WY

Built 1980 Load: 32.7 t ADT: 74

Pl Cnty Rd 41

Fair

Over: Cottonwood Creek

15 Mi. South Of Glendo, Platte, WY

Built 1970 Load: 32.7 t ADT: 131

Na Cnty Rd 106

Fair

Over: South Fork Powder River

3 Miles N. Of Powder Rive, Natrona, WY

Built 1979 Load: 32.7 t ADT: 20

Dell Range Blvd

Fair

Over: Dry Creek

Dell Range Blvd Cheyenne, Laramie, WY

Built 1982 Load: 32.7 t ADT: 22,130

N Burma Avenue

Fair

Over: Stonepile Creek

North Burma Road Gillette, Campbell, WY

Built 1979 Load: 32.7 t ADT: 1,313

16th Street

Fair

Over: Spring Creek

Laramie, Albany, WY

Built 1983 Load: 32.7 t ADT: 628

S 17th Street

Fair

Over: Spring Creek

Laramie, Albany, WY

Built 1960 Load: 32.7 t ADT: 3,413

Sh Cnty Rd 103

Fair

Over: Little Goose Creek

2.5 Miles S. Of Big Horn, Sheridan, WY

Built 1974 Load: 32.7 t ADT: 19

Sh Cnty Rd 1211

Fair

Over: Badger Creek

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

Built 1977 Load: 32.7 t ADT: 655

Jo Cnty Rd 132

Fair

Over: Clear Creek

Buffalo, Johnson, WY

Built 1976 Load: 32.7 t ADT: 97

Jo Cnty Rd 252

Fair

Over: Clear Creek

Buffalo, Johnson, WY

Built 1955 Load: 32.7 t ADT: 2,576

Pa Cnty Rd R12B

Fair

Over: Garland Canal

1.5 Mi. N.E. Of Ralston, Park, WY

Built 1982 Load: 32.7 t ADT: 160

Ni Cnty Rd 11

Fair

Over: Black Creek

12 Mi Sw Of Mule Crk Jct, Niobrara, WY

Built 1981 Load: 32.7 t ADT: 33

Pa Cnty Rd 6WX

Fair

Over: Deer Creek

1 Mile W. Of Valley, Park, WY

Built 1973 Load: 32.7 t ADT: 177

Pa Cnty Rd R22A

Fair

Over: Alkali Creek

8 Mi. W.Nw. Of Ralston, Park, WY

Built 1974 Load: 32.7 t ADT: 617

Pa Cnty Rd R19B

Fair

Over: Alkali Creek

T55N R100W S18, Park, WY

Built 1974 Load: 32.7 t ADT: 41

Pa Cnty Rd L7B

Fair

Over: Bitter Creek

3 Miles N.E. Of Powell, Park, WY

Built 1966 Load: 32.7 t ADT: 128

Pa Cnty Rd R1A

Fair

Over: Shoshone River

4 Mi. S.E. Of Garland, Park, WY

Built 1965 Load: 32.7 t ADT: 117

Pa Cnty Rd R2N

Fair

Over: Deaver Canal

3 Miles W. Of Deaver, Park, WY

Built 1960 Load: 32.7 t ADT: 128

Pa Cnty Rd 1XG

Fair

Over: Frannie Canal

1 Mile West Of Frannie, Park, WY

Built 1960 Load: 32.7 t ADT: 33

Pa Cnty Rd 5WT

Fair

Over: Greybull River

12 Miles Sw Of Meteetse, Park, WY

Built 1969 Load: 32.7 t ADT: 74

Pa Cnty Rd 3NG

Fair

Over: Greybull River

9 Mi. Ne Of Meetetse, Park, WY

Built 1964 Load: 32.7 t ADT: 128

Pa Cnty Rd 3LE

Fair

Over: Cottonwood Creek

23 Mi. S.E. Of Cody, Park, WY

Built 1967 Load: 32.7 t ADT: 106

Bh Cnty Rd R43

Fair

Over: Trapper Creek

3.5 Miles Se Of Shell, Big Horn, WY

Built 1965 Load: 32.7 t ADT: 117

Bh Cnty Rd 229

Fair

Over: Antelope Creek

2 Miles S. Of Basin, Big Horn, WY

Built 1926 Load: 32.7 t ADT: 339

Te Cnty Rd 15

Fair

Over: Grand Teton Canal

1 Mile West Of Alta, Teton, WY

Built 1974 Load: 32.7 t ADT: 2,059

E Welty Street

Fair

Over: Horse Creek

Dubois Streets, Fremont, WY

Built 1979 Load: 32.7 t ADT: 173

Sb Cnty Rd 144

Fair

Over: New Fork River

4.5 Mi. N.W. Of Pinedale, Sublette, WY

Built 1963 Load: 32.7 t ADT: 1,224

Showing 1,001-1,050 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.