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

W 5th Street

Fair

Over: Crow Creek

5Th Street, Laramie, WY

Built 1985 Load: 32.7 t ADT: 5,482

US 14

Fair

Over: Cabin Creek

Moorcroft Devils Twr Jct, Crook, WY

Built 1987 Load: 32.7 t ADT: 1,041

Cl Cnty Rd 117

Fair

Over: Stonepile Creek

Gillette, Campbell, WY

Built 1982 Load: 32.7 t ADT: 2,756

WYO 210

Fair

Over: S Fork Lodgepole Creek

Happy Jack Road, Albany, WY

Built 1987 Load: 32.7 t ADT: 965

US 287

Fair

Over: Ice Slough Creek

Muddy Gap - Lander, Fremont, WY

Built 1985 Load: 32.7 t ADT: 1,283

WYO 193

Fair

Over: South Piney Creek

Banner-Story, Sheridan, WY

Built 1986 Load: 32.7 t ADT: 557

I-80 Bus

Fair

Over: Duncomb Hollow

Evanston Streets, Uinta, WY

Built 1987 Load: 32.7 t ADT: 5,615

US 26

Fair

Over: Sand Draw

Dubois-Diversion Dam Jct, Fremont, WY

Built 1986 Load: 32.7 t ADT: 1,554

US 189

Fair

Over: Albert Creek

Lazeart Jct-Kemmerer Rd, Uinta, WY

Built 1988 Load: 32.7 t ADT: 1,134

Echeta Road

Fair

Over: Stonepile Creek

Gillette-Echeta Road, Campbell, WY

Built 1984 Load: 32.7 t ADT: 3,547

US 14

Fair

Over: Sulphur Creek

Cody-Yellowstone Road, Park, WY

Built 1955 Load: 32.7 t ADT: 18,720

Windmill Road

Fair

Over: Dry Creek

T14N R066W S21, Laramie, WY

Built 1986 Load: 32.7 t ADT: 2,857

US 18

Fair

Over: Mule Creek

Lusk-Newcastle, Niobrara, WY

Built 1988 Load: 32.7 t ADT: 2,115

Go Cnty Rd 15E

Fair

Over: Laramie River

1 Mile Sw. Of Ft. Laramie, Goshen, WY

Built 1977 Load: 32.7 t ADT: 68

Sb Cnty Rd 123

Fair

Over: Pine Creek

0.5 Miles S. Of Pinedale, Sublette, WY

Built 1988 Load: 32.7 t ADT: 840

Sb Cnty Rd 123

Fair

Over: Pine Creek Overflow

1 Mi. South Of Pinedale, Sublette, WY

Built 1988 Load: 32.7 t ADT: 840

Pl Cnty Rd 133

Fair

Over: Laramie River

8 Mi. N.W. Of Wheatland, Platte, WY

Built 1989 Load: 32.7 t ADT: 50

Pa Cnty Rd R11H

Fair

Over: Deer Creek

3 Miles W. Of Willwood, Park, WY

Built 1970 Load: 32.7 t ADT: 128

US 189

Fair

Over: Unnamed Draw

Kemmerer-Big Piney, Sublette, WY

Built 1987 Load: 32.7 t ADT: 814

US 26

Fair

Over: Little Dry Creek

Dubois-Diversion Dam Jct., Fremont, WY

Built 1987 Load: 32.7 t ADT: 1,554

US 26

Fair

Over: Smith Draw

Dubois-Diversion Dam Jct., Fremont, WY

Built 1987 Load: 32.7 t ADT: 1,554

WYO 50

Fair

Over: Mud Spring Creek

Savageton-Pine Tree, Campbell, WY

Built 1985 Load: 32.7 t ADT: 1,501

WYO 50

Fair

Over: S Branch Fourmile Creek

Savageton-Pine Tree, Campbell, WY

Built 1985 Load: 32.7 t ADT: 1,501

Cl Cnty Rd 99B

Fair

Over: Machinery Pass

20 Mi. S.E. Of Gillette, Campbell, WY

Built 1983 Load: 32.7 t ADT: 150

Pedestrian Path

Fair

Over: Henderson Drainage Ditch

CT050-5, Laramie, WY

Built 1978 Load: 32.7 t ADT: 201

WYO 120

Fair

Over: Heart Mountain Canal

T53W R102N S24, Park, WY

Built 1989 Load: 32.7 t ADT: 2,047

WYO 120

Fair

Over: Cottonwood Creek

Cody-Montana State Line, Park, WY

Built 1989 Load: 32.7 t ADT: 1,324

Cl Cnty Rd 11

Fair

Over: SA Creek

Big Powder River Road, Campbell, WY

Built 1991 Load: 32.7 t ADT: 20

Wa Cnty Rd 81

Fair

Over: Middle Fork Powder River

20 Mi S.E. Big Trails, Washakie, WY

Built 1975 Load: 32.7 t ADT: 97

Hs Cnty Rd 25

Fair

Over: Mud Creek

8 Mi Nw Of Thermopolis, Hot Springs, WY

Built 1960 Load: 32.7 t ADT: 76

Ui Cnty Rd 243

Fair

Over: Smiths Fork River

2 Mi East Of Mount View, Uinta, WY

Built 1989 Load: 32.7 t ADT: 71

Sw Cnty Rd 85

Fair

Over: Unnamed Draw

6 Mi Se Little America, Sweetwater, WY

Built 1980 Load: 32.7 t ADT: 715

Sw Cnty Rd 85

Fair

Over: Meadow Springs Draw

4 Mi Se Of Little America, Sweetwater, WY

Built 1980 Load: 32.7 t ADT: 715

WYO 450

Fair

Over: Oil Creek

Newcastle-Clareton Road, Weston, WY

Built 1989 Load: 32.7 t ADT: 763

Sw Cnty Rd 1199

Fair

Over: Greasewood Creek

Riovista S-Div Johnson Wy, Sweetwater, WY

Built 1940 Load: 32.7 t ADT: 258

Al Cnty Rd 610

Fair

Over: Sheep Creek

30 Mi N. Of Rock River, Albany, WY

Built 1989 Load: 32.7 t ADT: 21

E 19th Street

Fair

Over: Crow Creek

Missile Drive-19Th Street, Laramie, WY

Built 1965 Load: 32.7 t ADT: 1,025

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 32.7 t ADT: 410

WYO 585

Fair

Over: Sundance Creek

Sundance, Crook, WY

Built 1989 Load: 32.7 t ADT: 1,634

Go Cnty Rd 51F

Fair

Over: UPRR

Appx 33 Mi N. Torrington, Goshen, WY

Built 1984 Load: 32.7 t ADT: 22

Cl Cnty Rd 61

Fair

Over: Belle Fourche River

O.R. County Road, Campbell, WY

Built 1990 Load: 32.7 t ADT: 43

La Cnty Rd 123-2

Fair

Over: South Fork Bear Creek

Arrx 29 Mi N. Of Cheyenne, Laramie, WY

Built 1991 Load: 32.7 t ADT: 295

WYO 338

Fair

Over: Ash Creek

Sheridan-Mont. Line, Sheridan, WY

Built 1989 Load: 32.7 t ADT: 913

WYO 585

Fair

Over: Soldier Creek

Four Corners-Sundance Rd, Crook, WY

Built 1990 Load: 32.7 t ADT: 903

I-90 EBL and WBL

Fair

Over: Cundy Creek

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 32.7 t ADT: 2,385

WYO 59

Fair

Over: N F Little Rawhide Creek

Gillette-Montana, Campbell, WY

Built 1989 Load: 32.7 t ADT: 235

Lowr Powder Rvr Rd

Fair

Over: Juniper Draw

South Of I-90, Johnson, WY

Built 1960 Load: 32.7 t ADT: 89

WYO 789

Fair

Over: Cottonwood Creek

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 789

Fair

Over: Hudson Draw

Lander-Hudson, Fremont, WY

Built 1956 Load: 32.7 t ADT: 4,232

WYO 220

Fair

Over: Unnamed Draw

Muddy Gap-Casper, Natrona, WY

Built 1970 Load: 32.7 t ADT: 3,604

Showing 1,101-1,150 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.