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 331

Good

Over: Pilot Canal

Buckhorn Flats Road, Fremont, WY

Built 1987 Load: 35.4 t ADT: 225

WYO 196

Good

Over: S F Crazy Woman Creek

Kaycee-Buffalo, Johnson, WY

Built 1989 Load: 35.4 t ADT: 48

I-80 WBL

Good

Over: Dewar Drive

Rock Springs Marginal, Sweetwater, WY

Built 2007 Load: 35.4 t ADT: 9,743

NFSR 512

Good

Over: LAKE CREEK

6.5 MI. NW OF FOXPARK WY, Albany, WY

Built 2014 Load: 35.6 t ADT: 50

FOREST ROAD 10138

Good

Over: BLIND BULL CREEK

T34N R116W S8, Lincoln, WY

Built 2002 Load: 35.6 t ADT: 50

US 89

Good

Over: Flat Creek

Hoback Jct - Jackson, Teton, WY

Built 2019 Load: 35.6 t ADT: 11,439

Rhoads Street

Good

Over: Wind River

.8 Miles S. of US 26, Fremont, WY

Built 2016 Load: 35.6 t ADT: 127

NFSR 105

Good

Over: MEDICINE BOW RIVER

4.7 MI SE OF NFSR 100, Carbon, WY

Built 1985 Load: 36.0 t ADT: 14

WYO 215

Good

Over: Spring Creek

North of Pine Bluffs, Laramie, WY

Built 2019 Load: 36.0 t ADT: 639

I-25 NBL and SBL

Good

Over: Walsh Drive

Casper Marginal, Natrona, WY

Built 2022 Load: 36.0 t ADT: 11,987

Pa Cnty Rd L9B

Good

Over: Alkali Creek

6 Miles NW of Ralston, Park, WY

Built 1983 Load: 36.0 t ADT: 128

NFSR 100

Good

Over: NORTH BRUSH CREEK

5 MI. E OF TURPIN RESV, Carbon, WY

Built 1986 Load: 36.3 t ADT: 112

FOREST ROAD 10138

Good

Over: DEADMAN CREEK

NO DATA ENTERED, Lincoln, WY

Built 2002 Load: 36.3 t ADT: 50

FOREST ROAD 10114

Good

Over: SWEENEY CREEK

8.5 MI. NE. OF PINEDALE, Sublette, WY

Built 2019 Load: 36.3 t ADT: 50

I-25 NBL

Good

Over: WYO 321

Chugwater - Wheatland, Platte, WY

Built 1969 Load: 36.3 t ADT: 3,098

Pl Cnty Rd 90

Good

Over: I-25

Wheatland - Glendo, Platte, WY

Built 1966 Load: 36.3 t ADT: 609

I-80 EBL

Good

Over: WYO 414

Evanston - Green River, Uinta, WY

Built 1968 Load: 36.3 t ADT: 6,830

US 26

Good

Over: Winchester Draw

Diversion D Jt - Riverton, Fremont, WY

Built 1959 Load: 36.3 t ADT: 1,043

US 20

Good

Over: South Fork Casper Creek

Casper - Shoshoni, Natrona, WY

Built 1976 Load: 36.3 t ADT: 2,908

Hs Cnty Rd 6

Good

Over: Kirby Creek

18 Mi. N.E. Thermopolis, Hot Springs, WY

Built 1973 Load: 36.3 t ADT: 55

Shepperson Road

Good

Over: I-25

Casper - Kaycee, Natrona, WY

Built 1980 Load: 36.3 t ADT: 87

I-90 EBL

Good

Over: Sand Creek

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 36.3 t ADT: 2,665

I-90 WBL

Good

Over: Sand Creek

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 36.3 t ADT: 2,674

WYO 13

Good

Over: Rock Creek

Rock River - Jct I-80, Carbon, WY

Built 1976 Load: 36.3 t ADT: 350

US 26

Good

Over: Bull Lake Creek

Dubois - Diversion Dam Jt, Fremont, WY

Built 1982 Load: 36.3 t ADT: 1,554

US 26

Good

Over: South Fork Torrey Creek

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 36.3 t ADT: 1,554

Sb Cnty Rd 126

Good

Over: East Fork River

10 Mi Se Of Boulder, Sublette, WY

Built 2006 Load: 36.3 t ADT: 49

Cr Cnty Rd 261

Good

Over: Belle Fourche River

1.5 Mi. N.E. Of Hulett, Crook, WY

Built 2020 Load: 36.3 t ADT: 22

WYO 789

Good

Over: Muddy Creek

Creston Jct - Colo Line, Carbon, WY

Built 1960 Load: 36.6 t ADT: 1,193

Fr Cnty Rd 341

Good

Over: Pavillion Lateral

2.5 Mi Ne Of Pavillion, Fremont, WY

Built 2000 Load: 36.9 t ADT: 168

WYO 10

Good

Over: Laramie River

Woods Landing, Albany, WY

Built 2003 Load: 36.9 t ADT: 238

I-25 NBL

Good

Over: Pl CR 117 (Pepper Road)

Wheatland - Glendo, Platte, WY

Built 1966 Load: 37.2 t ADT: 3,174

I-25 SBL

Good

Over: Pl CR 114 (Fish Creek)

Wheatland - Glendo, Platte, WY

Built 1966 Load: 37.2 t ADT: 3,375

I-80 EBL

Good

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 37.2 t ADT: 5,683

WYO 789

Good

Over: Muddy Creek

Creston Jct - Colo Line, Carbon, WY

Built 1940 Load: 37.2 t ADT: 1,793

WYO 154

Good

Over: Fort Laramie Canal

Jct Us 85 - Yoder, Goshen, WY

Built 1966 Load: 37.2 t ADT: 672

WYO 414

Good

Over: Henrys Fork River

Jct I-80 - Utah Line, Uinta, WY

Built 1968 Load: 37.2 t ADT: 593

US 287

Good

Over: Antelope Creek

Muddy Gap Jct-WYO 28 Jct, Fremont, WY

Built 1977 Load: 37.2 t ADT: 915

Ui Cnty Rd 279

Good

Over: Willow Creek

3 Mi. S.E. Of Robertson, Uinta, WY

Built 1984 Load: 37.2 t ADT: 102

Fr Cnty Rd 338

Good

Over: Pilot Canal

15 Mi Ne Of Riverton, Fremont, WY

Built 2000 Load: 37.2 t ADT: 127

US 16

Good

Over: Clear Creek

Buffalo, Johnson, WY

Built 2010 Load: 37.2 t ADT: 2,930

FSR 389

Good

Over: NORTH FORK CLEAR CREEK

0.3 MI ON FSR 389, Johnson, WY

Built 2004 Load: 37.6 t ADT: 5

WYO 34

Good

Over: Sand Creek

Bosler Jct - Wheatland, Platte, WY

Built 1983 Load: 37.6 t ADT: 702

WYO 212

Good

Over: Pedestrian Path

Cheyenne, Laramie, WY

Built 2022 Load: 37.6 t ADT: 7,590

IRR BIA RTE 25

Good

Over: TROUT CREEK IRRIG CANAL

AT WIND RIVER, Fremont, WY

Built 1984 Load: 37.7 t ADT: 40

Fr Cnty Rd 428

Good

Over: Five Mile Creek

4 Mi N Of Pavillion, Fremont, WY

Built 2009 Load: 37.8 t ADT: 127

US 14A

Good

Over: Sage Creek

Cody - Powell, Park, WY

Built 2014 Load: 37.9 t ADT: 7,149

GRAND LOOP ROAD

Good

Over: GIBBON RIVER

7.5 MI. NE OF MADISON JCT, Teton, WY

Built 2002 Load: 38.1 t ADT: 1,807

Hs Cnty Rd 6

Good

Over: Kirby Creek

20 Mi. Ne. Of Thermopolis, Hot Springs, WY

Built 1973 Load: 38.1 t ADT: 55

US 16

Good

Over: Tensleep Creek

Worland - Buffalo, Washakie, WY

Built 1954 Load: 38.1 t ADT: 1,044

Showing 2,601-2,650 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.