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 450

Fair

Over: Beaver Creek

Newcastle-Reno Jct Road, Weston, WY

Built 1998 Load: 46.3 t ADT: 763

Ui Cnty Rd 233

Fair

Over: Unnamed Draw

10 Miles N.E. Of Lyman, Uinta, WY

Built 1997 Load: 46.3 t ADT: 41

I-80 WBL

Fair

Over: UPRR

Laramie Marginal, Albany, WY

Built 2001 Load: 46.3 t ADT: 9,328

Lobban Avenue

Fair

Over: Clear Creek

Buffalo Streets, Johnson, WY

Built 2004 Load: 46.3 t ADT: 89

Pa Cnty Rd 8VE

Fair

Over: Clarks Fork River

5 Mi Ne Of Clark, Park, WY

Built 2006 Load: 46.3 t ADT: 108

Sh Cnty Rd 219

Fair

Over: Clear Creek

.5 Miles S Of Clearmont, Sheridan, WY

Built 2009 Load: 46.3 t ADT: 63

US 14

Fair

Over: N Fork Shoshone River

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 46.4 t ADT: 2,487

WYO 237

Fair

Over: E Channel Salt River

Grover-Auburn Road, Lincoln, WY

Built 2004 Load: 46.7 t ADT: 548

WYO 89

Fair

Over: UPRR

Utah Line - Sage Jct, Lincoln, WY

Built 1948 Load: 47.0 t ADT: 1,253

Missile Drive

Fair

Over: Crow Creek

Missile Drive Cheyenne, Laramie, WY

Built 1961 Load: 47.0 t ADT: 4,490

I-25 NBL

Fair

Over: WYO 220

Casper Marginal, Natrona, WY

Built 1985 Load: 47.2 t ADT: 6,925

I-25 SBL

Fair

Over: WYO 220

Casper Marginal, Natrona, WY

Built 1985 Load: 47.2 t ADT: 12,953

US 16

Fair

Over: Tensleep Creek

Ten Sleep-Buffalo Road, Washakie, WY

Built 1990 Load: 47.2 t ADT: 797

I-80 WBL

Fair

Over: East Green River Intg

Green River Marginal, Sweetwater, WY

Built 2002 Load: 47.2 t ADT: 13,057

Ui Cnty Rd 254

Fair

Over: Smiths Fork River

4 Miles East Of Lyman, Uinta, WY

Built 2005 Load: 47.2 t ADT: 34

Sw Cnty Rd 58

Fair

Over: Killpecker Creek

1 Mile North Of Rock Spri, Sweetwater, WY

Built 2009 Load: 47.2 t ADT: 4,674

I-80 EBL

Fair

Over: WYO 150

Evanston Marginal, Uinta, WY

Built 1986 Load: 47.4 t ADT: 8,003

I-80 WBL

Fair

Over: WYO 150

Evanston Marginal, Uinta, WY

Built 1986 Load: 47.4 t ADT: 8,612

Bh Cnty Rd R8C

Fair

Over: Greybull River

3.5 Mi. S. Of Burlington, Big Horn, WY

Built 1980 Load: 48.1 t ADT: 134

Cl Cnty Rd 117

Fair

Over: Stonepile Creek

Gillette, Campbell, WY

Built 1982 Load: 48.1 t ADT: 4,379

Sb Cnty Rd 120

Fair

Over: New Fork River

4 Miles North Of Cora, Sublette, WY

Built 1988 Load: 48.1 t ADT: 49

Co Cnty Rd 24

Fair

Over: Laprele Creek

27 Mi Sw Of Douglas, Converse, WY

Built 2008 Load: 48.1 t ADT: 52

Butler Spaeth Road

Fair

Over: Stonepile Creek

Butler-Spaeth Rd Gillette, Campbell, WY

Built 1978 Load: 48.3 t ADT: 4,845

US 191

Fair

Over: Pine Creek

Pinedale, Sublette, WY

Built 1962 Load: 49.0 t ADT: 10,059

US 191

Fair

Over: Hoback River

Daniel Jct - Hoback Jct, Teton, WY

Built 1970 Load: 49.0 t ADT: 2,444

WYO 51

Fair

Over: Dry Donkey Creek

Gillette - Moorcroft, Campbell, WY

Built 1980 Load: 49.0 t ADT: 1,452

State Park Road

Fair

Over: Medicine Lodge Creek

Medicine Lodge State Park, Big Horn, WY

Built 1981 Load: 49.0 t ADT: 33

US 14A

Fair

Over: Garland Canal

Cody - Powell, Park, WY

Built 2010 Load: 49.0 t ADT: 5,827

Ui Cnty Rd 158

Fair

Over: Sulphur Creek

9 Mi Se Of Evanston, Uinta, WY

Built 2009 Load: 49.0 t ADT: 20

Interchange Road

Fair

Over: Bitter Creek

2 Miles W Of Rock Springs, Sweetwater, WY

Built 1985 Load: 49.0 t ADT: 97

US 14

Fair

Over: BNSF Railroad

East Edge of Ranchester, Sheridan, WY

Built 2022 Load: 49.2 t ADT: 767

Cl Cnty Rd 94

Fair

Over: I-90

Gillette - Moorcroft, Campbell, WY

Built 1974 Load: 49.9 t ADT: 98

US 191

Fair

Over: Bitter Creek

Jct 1-80 - Jct U-4304, Sweetwater, WY

Built 1982 Load: 49.9 t ADT: 7,711

Ln Cnty Rd 326

Fair

Over: Hams Fork River

5 Miles S.E. Of Kemmerer, Lincoln, WY

Built 1989 Load: 49.9 t ADT: 22

US 14

Fair

Over: Elk Fork Creek

Yellowstone Park - Cody, Park, WY

Built 1998 Load: 49.9 t ADT: 3,071

Na Cnty Rd 308

Fair

Over: North Platte River

Bessemer Road CN1-308, Natrona, WY

Built 1997 Load: 49.9 t ADT: 271

We Cnty Rd 3

Fair

Over: Beaver Creek

15 Mi. S.E Of Newcastle, Weston, WY

Built 1997 Load: 49.9 t ADT: 22

Go Cnty Rd 29C

Fair

Over: Fort Laramie Canal

Lingle-Veteran, Goshen, WY

Built 1996 Load: 49.9 t ADT: 168

Go Cnty Rd 3B

Fair

Over: North Platte River

6 Mi Nw Of Ft. Laramie, Goshen, WY

Built 1997 Load: 49.9 t ADT: 24

Te Cnty Rd 5

Fair

Over: Buffalo Fork River

13 Mi. E. Of Moran Jct, Teton, WY

Built 1998 Load: 49.9 t ADT: 515

I-80 WBL

Fair

Over: US 287

Laramie Marginal, Albany, WY

Built 2001 Load: 49.9 t ADT: 9,328

W Garfield Street

Fair

Over: Laramie River

City Of Laramie, Albany, WY

Built 2006 Load: 49.9 t ADT: 933

Scotts Bottom Road

Fair

Over: Green River

Green River, Sweetwater, WY

Built 2010 Load: 49.9 t ADT: 767

I-80 EBL

Fair

Over: I-80 Bus

Evanston - Green River, Uinta, WY

Built 1969 Load: 50.8 t ADT: 6,545

E 9th Street

Fair

Over: Crow Creek

Ninth Street Cheyenne, Laramie, WY

Built 1980 Load: 50.8 t ADT: 2,377

US 14A

Fair

Over: Sidon Canal

Garland-Byron, Big Horn, WY

Built 1984 Load: 50.8 t ADT: 1,887

US 16

Fair

Over: Clear Creek

Buffalo-Ucross, Johnson, WY

Built 1990 Load: 50.8 t ADT: 378

US 14

Fair

Over: N Fork Shoshone River

Yellowstone Park - Cody, Park, WY

Built 1998 Load: 50.8 t ADT: 3,071

Cr Cnty Rd 106

Fair

Over: Arch Creek

16 Mi N.E. Of Moorcroft, Crook, WY

Built 1991 Load: 50.8 t ADT: 61

WYO 135

Fair

Over: Little Wind River

2 Mi Se Of Riverton, Fremont, WY

Built 2002 Load: 50.8 t ADT: 972

Showing 1,851-1,900 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.