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

I-25 SBL

Good

Over: WYO 258 (Wyoming Blvd)

Casper Marginal, Natrona, WY

Built 2007 Load: 50.8 t ADT: 6,305

WYO 319

Good

Over: BNSF Railway

Glendo Streets, Platte, WY

Built 2011 Load: 50.8 t ADT: 359

I-80 WBL

Good

Over: Parsons Street

Cheyenne - Nebraska Line, Laramie, WY

Built 2015 Load: 50.9 t ADT: 4,387

Go Cnty Rd 39F

Good

Over: Rawhide Creek

Northeast Of Lingle, Goshen, WY

Built 1993 Load: 51.3 t ADT: 68

Te Cnty Rd 33

Good

Over: Hoback River

Hoback Junction, Teton, WY

Built 2017 Load: 51.5 t ADT: 351

US 14

Good

Over: N Fork Shoshone River

33 Mi West Of Cody, Park, WY

Built 2001 Load: 51.7 t ADT: 2,487

Pa Cnty Rd R10A

Good

Over: Garland Canal

1 Mile West Of Powell, Park, WY

Built 1990 Load: 51.7 t ADT: 1,757

Sw Cnty Rd 1

Good

Over: Henrys Fork River

45 Mi Sw Of Green River, Sweetwater, WY

Built 2005 Load: 51.7 t ADT: 116

NFSR 498

Good

Over: S. FORK BIG CREEK

6.53 MI WEST OF HWY 230, Carbon, WY

Built 2002 Load: 51.8 t ADT: 25

INDIAN CREEK CAMPG

Good

Over: OBSIDIAN CREEK

8.4 MI. SOUTH OF MAMMOTH, Teton, WY

Built 2012 Load: 52.6 t ADT: 75

Ln Cnty Rd 126

Good

Over: Strawberry Creek

1 Mi E Of Bedford, Lincoln, WY

Built 2001 Load: 52.6 t ADT: 120

NO DATA ENTERED

Good

Over: WARM SPRING CREEK

NO DATA ENTERED, Fremont, WY

Built 2017 Load: 53.1 t ADT: 50

Wa Cnty Rd 82

Good

Over: Nowood River

County Road 82 (CN20-82), Washakie, WY

Built 2008 Load: 53.1 t ADT: 59

Pl Cnty Rd 204

Good

Over: Sybille Creek

6 miles west of Wheatland, Platte, WY

Built 2019 Load: 53.1 t ADT: 14

I-80 WBL

Good

Over: Baxter Road

Rock Springs - Rawlins, Sweetwater, WY

Built 2021 Load: 53.1 t ADT: 7,114

WYO 230

Good

Over: Machinery Pass

Woods Landing-Colo.State, Albany, WY

Built 1989 Load: 53.5 t ADT: 958

US 14

Good

Over: Shell Creek

Greybull-Burgess Jct Road, Big Horn, WY

Built 1991 Load: 53.5 t ADT: 511

Buckskin Drive

Good

Over: Little Rawhide Creek

Gillette Streets, Campbell, WY

Built 1985 Load: 53.9 t ADT: 468

I-80 EBL

Good

Over: WYO 371

Rock Springs - Rawlins, Sweetwater, WY

Built 2019 Load: 54.1 t ADT: 7,088

I-80 WBL

Good

Over: WYO 371

Rock Springs - Rawlins, Sweetwater, WY

Built 2019 Load: 54.1 t ADT: 7,114

I-80 EBL

Good

Over: WYO 217 (Hillsdale Int)

Cheyenne - Nebraska Line, Laramie, WY

Built 2021 Load: 54.1 t ADT: 6,129

I-80 WBL

Good

Over: WYO 217 (Hillsdale Int)

Cheyenne - Nebraska Line, Laramie, WY

Built 2020 Load: 54.1 t ADT: 5,179

US 85

Good

Over: Allison Draw

South Greeley Highway, Laramie, WY

Built 1994 Load: 54.4 t ADT: 14,348

WYO 411

Good

Over: Blacks Fork Canal

3 Mi Sw Of Mountain View, Uinta, WY

Built 2002 Load: 54.4 t ADT: 737

Cb Cnty Rd 297

Good

Over: UPRR

2 Mi. E. Of Hanna, Carbon, WY

Built 2003 Load: 54.4 t ADT: 166

Ln Cnty Rd 146

Good

Over: Salt River

1.5 Mi Se Of Fairview, Lincoln, WY

Built 2004 Load: 54.4 t ADT: 120

Sw Cnty Rd 106

Good

Over: Means Canal

7 Mi Ne Of Farson, Sweetwater, WY

Built 2009 Load: 54.4 t ADT: 111

IRR BIA RTE 78

Good

Over: LITTLE WIND RIVER

2 KM SW OF ARAPAHOE SCHOO, Fremont, WY

Built 2010 Load: 54.5 t ADT: 1,500

NO DATA ENTERED

Good

Over: SOUTH FORK WARM SPRINGS

30 MILES SW OF DUBOIS WY, Fremont, WY

Built 2002 Load: 54.8 t ADT: 50

US 14

Good

Over: Shell Creek

Greybull-Burgess Jct Road, Big Horn, WY

Built 1991 Load: 55.3 t ADT: 511

I-80 EBL

Good

Over: West Sinclair Intg

Rawlins - Laramie, Carbon, WY

Built 2001 Load: 55.3 t ADT: 7,360

I-80 WBL

Good

Over: West Sinclair Intg

Rawlins - Laramie, Carbon, WY

Built 2000 Load: 55.3 t ADT: 7,406

Bh Cnty Rd R39

Good

Over: Shell Creek

Big Horn County, Big Horn, WY

Built 2005 Load: 55.3 t ADT: 122

Ln Cnty Rd 327

Good

Over: Hams Fork River

1 Mile N. of Kemmerer, Lincoln, WY

Built 2023 Load: 56.1 t ADT: 120

US 14

Good

Over: Mormon Creek

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 56.2 t ADT: 2,487

WYO 131

Good

Over: Hornecker Creek

Sinks Canyon Road, Fremont, WY

Built 2004 Load: 56.2 t ADT: 1,226

WYO 59

Good

Over: Little Powder River

Gillette-Mt State Line, Campbell, WY

Built 2007 Load: 56.2 t ADT: 1,030

FSR 26

Good

Over: SOUTH TONGUE RIVER

26.9 MI W ON FSR 26, Sheridan, WY

Built 1961 Load: 56.7 t ADT: 60

WYO 132

Good

Over: Wind River

Ethete-Kinnear, Fremont, WY

Built 2007 Load: 57.2 t ADT: 1,005

Wa Cnty Rd 86

Good

Over: Cottonwood Creek

Winchester S of Worland, Washakie, WY

Built 2023 Load: 57.3 t ADT: 42

Holland Drive

Good

Over: Bear River

Evanston Streets, Uinta, WY

Built 1997 Load: 58.1 t ADT: 1,269

A Street

Good

Over: UPRR / S. Main Street

Elk Street, Sweetwater, WY

Built 2006 Load: 59.0 t ADT: 8,226

FR 10156

Good

Over: TOSI CREEK

6 MI. N. OF FOREST BOUN., Sublette, WY

Built 1960 Load: 59.6 t ADT: 50

BEARTOOTH HIGHWAY

Good

Over: LONG LAKE OUTLET

31.6 MI. EAST OF NE ENTRA, Park, WY

Built 2014 Load: 59.9 t ADT: 1,775

Cb Cnty Rd 602

Good

Over: Little Savery Creek

20 Mi. N.E. Of Savery, Carbon, WY

Built 1984 Load: 59.9 t ADT: 97

I-80 EBL

Good

Over: UPRR / WYO 76

Rawlins - Laramie, Carbon, WY

Built 2001 Load: 59.9 t ADT: 7,360

I-80 WBL

Good

Over: UPRR / WYO 76

Rawlins - Laramie, Carbon, WY

Built 2000 Load: 59.9 t ADT: 7,406

Jo Cnty Rd 14

Good

Over: N F Crazy Woman Creek

10 Mi S. Of Buffalo, Johnson, WY

Built 2005 Load: 59.9 t ADT: 53

Grant Street

Good

Over: Bitter Creek

Rock Springs, Sweetwater, WY

Built 2010 Load: 59.9 t ADT: 4,712

Sh Cnty Rd 1213

Good

Over: Little Goose Creek

6 Mi S Of Sheridan, Sheridan, WY

Built 2015 Load: 60.6 t ADT: 204

Showing 2,851-2,900 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.