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

FDR 27

Good

Over: WEST TENSLEEP CREEK

6.3 MI NORTH OF HWY 16, Big Horn, WY

Built 1966 Load: 34.0 t ADT: 10

Cb Cnty Rd 660

Good

Over: Beaver Creek

7 Mi. NE of Riverside, Carbon, WY

Built 2021 Load: 34.0 t ADT: 68

IRR BIA RTE 33

Good

Over: COOLIDGE CANAL

3.2 KM SW OF ETHETE, Fremont, WY

Built 1994 Load: 34.3 t ADT: 10

ROAD

Good

Over: SALT RIVER

NO DATA ENTERED, Lincoln, WY

Built 1983 Load: 34.3 t ADT: 50

I-25 NBL

Good

Over: WYO 319

Wheatland - Glendo, Platte, WY

Built 1960 Load: 34.3 t ADT: 3,174

I-80 EBL

Good

Over: Sw CR 47 (Riner Road)

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 34.3 t ADT: 6,603

US 20

Good

Over: Casper Canal

Casper - Shoshoni, Natrona, WY

Built 1976 Load: 34.3 t ADT: 2,908

WYO 310

Good

Over: Wyo Development Co Canal

Wheatland West, Platte, WY

Built 2014 Load: 34.3 t ADT: 214

Cr Cnty Rd 179

Good

Over: Arch Creek

18 Mi. S.E. Of Moorcroft, Crook, WY

Built 2019 Load: 34.3 t ADT: 28

ENTRANCE ROAD (FUT

Good

Over: LARAMIE RIVER

0.6 MILES WEST OF FORT LA, Goshen, WY

Built 1976 Load: 34.5 t ADT: 50

I-25 NBL

Good

Over: Machinery Pass

Casper - Kaycee, Natrona, WY

Built 1972 Load: 34.5 t ADT: 2,677

I-25 SBL

Good

Over: Machinery Pass

Casper - Kaycee, Natrona, WY

Built 1972 Load: 34.5 t ADT: 2,648

I-90/US 14/87 Bus

Good

Over: Little Goose Creek

Sheridan Coffeen Ave, Sheridan, WY

Built 1980 Load: 34.5 t ADT: 19,163

I-90 EBL

Good

Over: Cr CR 108 (Rifle Pit Rd)

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 34.5 t ADT: 2,700

WYO 120

Good

Over: Cody Canal

Thermopolis - Cody, Park, WY

Built 1979 Load: 34.5 t ADT: 2,654

WYO 13

Good

Over: Big Harrison Ditch

Rock River - Jct I-80, Carbon, WY

Built 1976 Load: 34.5 t ADT: 192

Pl Cnty Rd 80

Good

Over: Iowa Lateral Ditch

5 Mi W.S.W. Of Wheatland, Platte, WY

Built 1970 Load: 34.5 t ADT: 131

I-90 EBL

Good

Over: Sh CR 97 (Early Creek)

Montana Line - Sheridan, Sheridan, WY

Built 1982 Load: 34.5 t ADT: 3,374

I-90 WBL

Good

Over: Sh CR 97 (Early Creek)

Montana Line - Sheridan, Sheridan, WY

Built 1982 Load: 34.5 t ADT: 3,535

US 189

Good

Over: Little Muddy Creek

Lazeart Jct-Kemmerer, Uinta, WY

Built 1987 Load: 34.5 t ADT: 1,134

WYO 154

Good

Over: Cherry Creek

Yoder-Torrington, Goshen, WY

Built 1986 Load: 34.5 t ADT: 520

US 20

Good

Over: Van Tassell Creek

Lusk - Nebr. Line, Niobrara, WY

Built 1986 Load: 34.5 t ADT: 534

Fr Cnty Rd 334

Good

Over: Coolidge Canal

3 Mi Se Of Ethete, Fremont, WY

Built 2012 Load: 34.5 t ADT: 1,152

Sw Cnty Rd 6

Good

Over: Green River

OCI Chemical Road, Sweetwater, WY

Built 1998 Load: 34.5 t ADT: 1,040

Sb Cnty Rd 108

Good

Over: Hoback River

2 Mi Nw Of Bondurant, Sublette, WY

Built 2011 Load: 34.5 t ADT: 145

Dell Range Blvd

Good

Over: Dry Creek

Cheyenne, Laramie, WY

Built 1985 Load: 34.7 t ADT: 27,316

La Cnty Rd 127-1

Good

Over: Dry Creek

Cheyenne, Laramie, WY

Built 1985 Load: 34.7 t ADT: 6,453

Snowy Range Road

Good

Over: UPRR

Laramie Streets, Albany, WY

Built 2018 Load: 34.7 t ADT: 11,309

WYO 433

Good

Over: Unnamed Draw

Worland - Manderson, Big Horn, WY

Built 2015 Load: 34.7 t ADT: 1,383

Cb Cnty Rd 3

Good

Over: Medicine Bow River

Elk Mountain-E Main St, Carbon, WY

Built 2016 Load: 35.0 t ADT: 121

Ui Cnty Rd 159

Good

Over: Sulphur Creek

7 mi. S.E. of Evanston, Uinta, WY

Built 2020 Load: 35.0 t ADT: 37

Jo Cnty Rd 259

Good

Over: Dead Horse Creek

31 Mi Se Of Buffalo, Johnson, WY

Built 2008 Load: 35.1 t ADT: 97

FSR 27

Good

Over: WEST TENSLEEP CREEK

0.1 MI N OF HWY 16, Big Horn, WY

Built 2002 Load: 35.3 t ADT: 291

NFSR 329

Good

Over: SAND CREEK

31 MI W OF LANDER WY, Fremont, WY

Built 2013 Load: 35.3 t ADT: 50

NFSR 329

Good

Over: DICKINSON CREEK

31.2 MI W OF LANDER WY, Fremont, WY

Built 2013 Load: 35.3 t ADT: 50

FOREST ROAD 10138

Good

Over: GREYS RIVER

T33N R116W S5, Lincoln, WY

Built 2002 Load: 35.3 t ADT: 50

Sw Cnty Rd 37

Good

Over: UPRR

.5 Mi. S. of Labarge Int, Sweetwater, WY

Built 2017 Load: 35.3 t ADT: 87

Te Cnty Rd 4

Good

Over: Gros Ventre River

T42N R116W S34, Teton, WY

Built 2018 Load: 35.3 t ADT: 886

Pa Cnty Rd 6QS

Good

Over: S Fork Shoshone River

13 Mi. S.W. Of Cody, Park, WY

Built 2018 Load: 35.3 t ADT: 90

I-25 NBL

Good

Over: Spring Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 35.4 t ADT: 3,174

I-25 SBL

Good

Over: Spring Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 35.4 t ADT: 3,375

I-80 WBL

Good

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1964 Load: 35.4 t ADT: 6,418

US 26

Good

Over: Unnamed Draw

Guernsey - Lingle, Goshen, WY

Built 1969 Load: 35.4 t ADT: 2,374

WYO 530

Good

Over: Blacks Fork River

Green River - Utah Line, Sweetwater, WY

Built 1963 Load: 35.4 t ADT: 2,055

US 16

Good

Over: Stockade Beaver Creek

Newcastle - S Dak Line, Weston, WY

Built 1959 Load: 35.4 t ADT: 1,658

US 14

Good

Over: Trout Creek

Yellowstone Pk - Cody, Park, WY

Built 1982 Load: 35.4 t ADT: 2,406

Fr Cnty Rd 176

Good

Over: Badwater Creek

T38N R091W S13, Fremont, WY

Built 1978 Load: 35.4 t ADT: 243

US 26

Good

Over: North Fork Torrey Creek

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 35.4 t ADT: 1,554

US 26

Good

Over: Jakeys Fork River

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 35.4 t ADT: 4,296

Sh Cnty Rd 66

Good

Over: Little Goose Creek

2 Miles S. Of Sheridan, Sheridan, WY

Built 1984 Load: 35.4 t ADT: 659

Showing 2,551-2,600 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.