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

WYO 28

Fair

Over: Eden Canal

Farson - Lander Road, Sweetwater, WY

Built 1985 Load: 35.4 t ADT: 1,270

S Gurley Avenue

Fair

Over: BNSF / US 14/16

Gillette/Gurley Ave.Viad., Campbell, WY

Built 1982 Load: 35.4 t ADT: 10,512

US 14

Fair

Over: Belle Fourche River

Moorcroft-Devils Twr Jct, Crook, WY

Built 1987 Load: 35.4 t ADT: 793

US 89

Fair

Over: Salt River

Border Jct - Smoot, Lincoln, WY

Built 1987 Load: 35.4 t ADT: 1,186

Stagecoach Blvd

Fair

Over: Killpecker Creek

Rock Springs Streets, Sweetwater, WY

Built 1987 Load: 35.4 t ADT: 4,071

College Drive

Fair

Over: I-80

Rock Springs Marginal, Sweetwater, WY

Built 1989 Load: 35.4 t ADT: 8,423

WYO 319

Fair

Over: Horseshoe Creek

Glendo-Wendover, Platte, WY

Built 1988 Load: 35.4 t ADT: 179

Ui Cnty Rd

Fair

Over: Bear River

Evanston, Uinta, WY

Built 1988 Load: 35.4 t ADT: 3,346

US 30

Fair

Over: Crow Creek

W.Lincolnway-Cheyenne, Laramie, WY

Built 1987 Load: 35.4 t ADT: 18,504

US 14

Fair

Over: Coal Creek

Sheridan-Gillette Road, Sheridan, WY

Built 1987 Load: 35.4 t ADT: 829

S Sheridan Avenue

Fair

Over: Little Goose Creek

City Of Sheridan, Sheridan, WY

Built 1990 Load: 35.4 t ADT: 5,674

WYO 116 S

Fair

Over: Iron Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 35.4 t ADT: 309

Westland Road

Fair

Over: Crow Creek

24Th Street-Westland Road, Laramie, WY

Built 1991 Load: 35.4 t ADT: 2,376

I-80 / US 30 Bus

Fair

Over: Bitter Creek

Rock Springs Dewar Drive, Sweetwater, WY

Built 1991 Load: 35.4 t ADT: 14,199

US 14

Fair

Over: South Fork Tongue River

Burgess Jct-Dayton, Sheridan, WY

Built 1994 Load: 35.4 t ADT: 767

WYO 95

Fair

Over: N Platte River Overflow

Glenrock-Ross, Converse, WY

Built 1994 Load: 35.4 t ADT: 1,551

WYO 334

Fair

Over: Little Goose Creek

Brundage Lane-Sheridan, Sheridan, WY

Built 1993 Load: 35.4 t ADT: 7,038

WYO 173

Fair

Over: BNSF Railway

Thermopolis East, Hot Springs, WY

Built 1992 Load: 35.4 t ADT: 195

I-80 EBL

Fair

Over: Dewar Drive

Rock Springs Marginal, Sweetwater, WY

Built 2007 Load: 35.4 t ADT: 9,844

I-25 SBL

Fair

Over: El Rancho Road

Wheatland - Glendo, Platte, WY

Built 1960 Load: 35.6 t ADT: 3,375

I-25 NBL

Fair

Over: Laprele Creek

Douglas - Casper, Converse, WY

Built 1958 Load: 35.6 t ADT: 4,682

I-25 NBL

Fair

Over: South Fork Powder River

Casper - Kaycee, Johnson, WY

Built 1960 Load: 35.6 t ADT: 1,499

Wa Cnty Rd L10

Fair

Over: Hanover Canal

2 miles NE of Worland, Washakie, WY

Built 2016 Load: 35.6 t ADT: 301

I-25 NBL

Fair

Over: Missile Dr/Happy Jack Rd

Cheyenne Marginal, Laramie, WY

Built 1958 Load: 35.9 t ADT: 11,548

I-25 SBL

Fair

Over: Missile Dr/Happy Jack Rd

Cheyenne Marginal, Laramie, WY

Built 1958 Load: 35.9 t ADT: 10,139

I-25 NBL

Fair

Over: WYO 94 (Esterbrook Rd)

Douglas Marginal, Converse, WY

Built 1966 Load: 35.9 t ADT: 3,618

I-80 WBL

Fair

Over: E F Medicine Bow River

Rawlins - Laramie, Carbon, WY

Built 1969 Load: 35.9 t ADT: 5,833

I-80 EBL Off Ramp

Fair

Over: I-80

Evanston - Green River, Sweetwater, WY

Built 1967 Load: 35.9 t ADT: 63

Cb Cnty Rd 270

Fair

Over: Difficulty Creek

13 Mi. N.E. Of Hanna, Carbon, WY

Built 1985 Load: 35.9 t ADT: 97

FOREST ROAD 10125

Fair

Over: SHEEP CREEK

NO DATA ENTERED, Lincoln, WY

Built 1967 Load: 36.0 t ADT: 50

FOREST ROAD 10125

Fair

Over: SHEEP CREEK

NO DATA ENTERED, Lincoln, WY

Built 1967 Load: 36.0 t ADT: 75

I-90 WBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1982 Load: 36.0 t ADT: 3,535

Go Cnty Rd 37C

Fair

Over: Fort Laramie Canal

1 Mi. N.W. Of Yoder, Goshen, WY

Built 1997 Load: 36.0 t ADT: 215

I-25 SBL

Fair

Over: UPRR / US 30

Cheyenne Marginal, Laramie, WY

Built 1963 Load: 36.3 t ADT: 10,595

I-25 NBL

Fair

Over: Machinery Pass

Douglas - Casper, Natrona, WY

Built 1966 Load: 36.3 t ADT: 4,193

I-25 SBL

Fair

Over: Machinery Pass

Douglas - Casper, Natrona, WY

Built 1966 Load: 36.3 t ADT: 4,702

Old Barnum Road

Fair

Over: I-25

Casper - Kaycee, Johnson, WY

Built 1971 Load: 36.3 t ADT: 89

I-25 SBL

Fair

Over: South Main Street

Buffalo Marginal, Johnson, WY

Built 1971 Load: 36.3 t ADT: 1,770

I-80 WBL

Fair

Over: WYO 412

Evanston - Green River, Uinta, WY

Built 1968 Load: 36.3 t ADT: 6,458

I-80 EBL

Fair

Over: West Madison Drive

Laramie Marginal, Albany, WY

Built 1963 Load: 36.3 t ADT: 6,472

I-80 WBL

Fair

Over: West Madison Drive

Laramie Marginal, Albany, WY

Built 1963 Load: 36.3 t ADT: 9,014

Vista Drive

Fair

Over: I-80

Laramie Marginal, Albany, WY

Built 1962 Load: 36.3 t ADT: 1,931

I-80 EBL

Fair

Over: UPRR

Laramie - Cheyenne, Laramie, WY

Built 1958 Load: 36.3 t ADT: 6,552

I-80 EBL

Fair

Over: WYO 222

Laramie - Cheyenne, Laramie, WY

Built 1961 Load: 36.3 t ADT: 6,771

I-80 WBL

Fair

Over: WYO 222

Laramie - Cheyenne, Laramie, WY

Built 1961 Load: 36.3 t ADT: 6,876

I-90 EBL

Fair

Over: Goose Creek

Sheridan Marginal, Sheridan, WY

Built 1960 Load: 36.3 t ADT: 3,609

I-90 WBL

Fair

Over: Tipperary Road

Buffalo - Gillette, Johnson, WY

Built 1960 Load: 36.3 t ADT: 2,000

I-90 EBL

Fair

Over: Wind Creek

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 36.3 t ADT: 2,133

I-90 WBL

Fair

Over: Wind Creek

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 36.3 t ADT: 1,928

US 30

Fair

Over: UPRR / Twin Creek

Sage Jct - Kemmerer, Lincoln, WY

Built 1970 Load: 36.3 t ADT: 1,406

Showing 1,451-1,500 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.