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 EBL

Good

Over: Machinery Pass

Rock Springs Marginal, Sweetwater, WY

Built 2007 Load: 60.8 t ADT: 8,122

I-80 EBL

Good

Over: La CR 164-1 (Beech St)

Cheyenne - Nebraska Line, Laramie, WY

Built 2016 Load: 61.6 t ADT: 4,673

Al Cnty Rd 71

Good

Over: North Laramie River

57 Mi Ne Of Rock River, Albany, WY

Built 2000 Load: 61.7 t ADT: 50

Al Cnty Rd 54

Good

Over: Sprague Creek

17 Miles Nw Of Laramie, Albany, WY

Built 2001 Load: 61.7 t ADT: 128

IRR BIA RTE 140

Good

Over: DRY CREEK

11 KM NE OF JCT 23 & 140, Fremont, WY

Built 1996 Load: 61.8 t ADT: 20

NO DATA ENTERED

Good

Over: SHERIDAN CREEK

NO DATA ENTERED, Fremont, WY

Built 2011 Load: 61.9 t ADT: 50

Parsley Blvd

Good

Over: I-80

Cheyenne Marginal, Laramie, WY

Built 2022 Load: 61.9 t ADT: 3,035

Al Cnty Rd 54

Good

Over: Browns Creek

15 Miles Nw Of Laramie, Albany, WY

Built 2004 Load: 62.6 t ADT: 128

US 14

Good

Over: Goff Creek

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 63.3 t ADT: 2,487

US 14

Good

Over: N Fork Shoshone River

33 Mi West Of Cody, Park, WY

Built 2001 Load: 63.5 t ADT: 2,487

La Cnty Rd 123-2

Good

Over: North Bear Creek

45 Miles N. Of Cheyenne, Laramie, WY

Built 1986 Load: 64.0 t ADT: 295

FOREST ROAD 30400

Good

Over: CRYSTAL CREEK

19 MI. NE. OF JACKSON WY, Teton, WY

Built 2019 Load: 64.2 t ADT: 50

Te Cnty Rd 32

Good

Over: Teton Creek

Alta, Teton, WY

Built 1987 Load: 64.4 t ADT: 355

Pa Cnty Rd L9

Good

Over: Frannie Canal

3 Miles West Of Powell, Park, WY

Built 2004 Load: 64.4 t ADT: 978

I-80 EBL

Good

Over: Parsons Street

Cheyenne - Nebraska Line, Laramie, WY

Built 2017 Load: 65.4 t ADT: 5,226

NO DATA ENTERED

Good

Over: ROCK CREEK

NO DATA ENTERED, Fremont, WY

Built 2009 Load: 66.1 t ADT: 100

BEARTOOTH HIGHWAY

Good

Over: LITTLE BEAR CREEK

29.6 MILES EAST OF NE PAR, Park, WY

Built 2018 Load: 67.1 t ADT: 1,775

EAST ENTRANCE ROAD

Good

Over: PELICAN CREEK

1.6 MI. EAST OF LAKE JCT., Park, WY

Built 2020 Load: 67.1 t ADT: 1,543

Al Cnty Rd 519

Good

Over: Little Laramie River

12 Mi Ne Of Centennial, Albany, WY

Built 2001 Load: 67.1 t ADT: 34

La Cnty Rd 927

Good

Over: I-25

Colorado Line - Cheyenne, Laramie, WY

Built 2010 Load: 67.1 t ADT: 897

US 85

Good

Over: Horse Creek

Cheyenne - Torrington, Laramie, WY

Built 1967 Load: 67.9 t ADT: 2,775

WYO 270

Good

Over: Old Woman Creek

Lance Creek East Road, Niobrara, WY

Built 2007 Load: 68.0 t ADT: 208

US 26

Good

Over: Buffalo Fork River

Moran Jct - Dubois, Teton, WY

Built 2007 Load: 68.0 t ADT: 1,612

Ln Cnty Rd 114

Good

Over: Jackknife Creek

1.5 Miles N Of Etna, Lincoln, WY

Built 2002 Load: 70.8 t ADT: 404

US 189

Good

Over: S F Cottonwood Creek

Big Pine-Daniel Jct, Sublette, WY

Built 1995 Load: 71.7 t ADT: 1,380

US 189

Good

Over: N Fork Cottonwood Creek

Big Piney-Daniel Jct, Sublette, WY

Built 1995 Load: 71.7 t ADT: 1,380

Wa Cnty Rd 20

Good

Over: Gooseberry Creek

10 Mi.S.W. Of Worland, Washakie, WY

Built 2002 Load: 71.7 t ADT: 9

US 14

Good

Over: Moss Creek

31 Mi. West Of Cody, Park, WY

Built 2000 Load: 73.3 t ADT: 2,487

Al Cnty Rd 510

Good

Over: Little Laramie River

12 Miles NE Of Centennial, Albany, WY

Built 2001 Load: 74.4 t ADT: 34

FDR 863

Good

Over: SAND CREEK DRAINAGE

T 51 N R 61 W SEC 11, Crook, WY

Built 2007 Load: 78.1 t ADT: 50

WYO 430

Good

Over: South Alkali Creek

Rock Springs-Hiawatha, Sweetwater, WY

Built 1952 Load: 97.2 t ADT: 243

MOOSE WILSON ROAD

Good

Over: KAUFMAN CREEK

5.6 MI SW MOOSE JUNCTION, Teton, WY

Built 2023 Load: 99.9 t ADT: 200

FOREST ROAD 30980

Poor

Over: MOSQUITO CREEK

8 MI. SW. OF JACKSON WY, Teton, WY

Built 1956 ADT: 50

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

BLM Road 4116

Poor

Over: Big Sandy River

35 Miles Se Of Boulder, Sublette, WY

Built 1982 Load: 5.4 t ADT: 49

NO DATA ENTERED

Poor

Over: NO DATA ENTERED

NO DATA ENTERED, Lincoln, WY

Built 2013 Load: 5.5 t ADT: 50

Sh Cnty Rd 110

Poor

Over: Tongue River

7 Mi Nw Of Sheridan, Sheridan, WY

Built 1903 Load: 5.5 t ADT: 179

Cb Cnty Rd 3

Poor

Over: Third Sand Creek

11 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1965 Load: 5.9 t ADT: 82

Ui Cnty Rd 141

Poor

Over: Muddy Creek

0.2 Mi N Of Leroy Rd Int, Uinta, WY

Built 1979 Load: 5.9 t ADT: 71

Cr Cnty Rd 93

Poor

Over: Inyan Kara Creek

T50N R065W S24, Crook, WY

Built 1955 Load: 6.2 t ADT: 40

Bh Cnty Rd L32H

Poor

Over: Red Gulch

3 Miles W. Of Shell, Big Horn, WY

Built 1950 Load: 6.2 t ADT: 81

Sw Cnty Rd 62

Poor

Over: Red Creek

T12N R105W S15, Sweetwater, WY

Built 1982 Load: 6.2 t ADT: 109

FOUNTAIN FREIGHT R

Poor

Over: FIREHOLE RIVER

12 +/- MI. SOUTH OF MADIS, Teton, WY

Built 1925 Load: 6.3 t ADT: 10

Na Cnty Rd 412

Poor

Over: Hogback Draw

3 Miles Northeast Alcova, Natrona, WY

Built 1929 Load: 6.5 t ADT: 87

Cb Cnty Rd 109

Poor

Over: Mill Creek

3 Mi Nw Of Elk Mountain, Carbon, WY

Built 1940 Load: 6.9 t ADT: 2

Showing 2,901-2,950 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.