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

US 310

Good

Over: Sidon Canal

Lovell - Deaver, Big Horn, WY

Built 1971 Load: 31.8 t ADT: 1,834

Bh Cnty Rd 85

Good

Over: Shell Creek

3 Miles W. Of Shell, Big Horn, WY

Built 1968 Load: 31.8 t ADT: 144

Sw Cnty Rd 19S

Good

Over: Bitter Creek

T18N R 99W S10, Sweetwater, WY

Built 1980 Load: 31.8 t ADT: 63

WYO 34

Good

Over: Canal No 3

Bosler Jct - Wheatland, Platte, WY

Built 1983 Load: 31.8 t ADT: 702

Fr Cnty Rd 235

Good

Over: Little Popo Agie River

Red Canyon Road, Fremont, WY

Built 1992 Load: 31.8 t ADT: 26

Na Cnty Rd 319

Good

Over: Casper Canal

Oregon Trail Road, Natrona, WY

Built 1998 Load: 31.8 t ADT: 6

Pa Cnty Rd 6WX

Good

Over: Legg Creek

35 Mi Sw Of Cody, Park, WY

Built 2005 Load: 31.8 t ADT: 177

WYO 238

Good

Over: Crow Creek

Auburn - Afton, Lincoln, WY

Built 2019 Load: 31.8 t ADT: 1,372

I-25 NBL

Good

Over: North Fork Powder River

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 32.0 t ADT: 1,573

FDR 17

Good

Over: SHELL CREEK

2.7 MI ON FDR 17, Big Horn, WY

Built 1948 Load: 32.1 t ADT: 45

W Pershing Street

Good

Over: Niobrara River

Lusk Streets, Niobrara, WY

Built 1991 Load: 32.4 t ADT: 314

Fr Cnty Rd 16

Good

Over: Leclair Canal

Riverview Cutoff, Fremont, WY

Built 1994 Load: 32.4 t ADT: 127

Fr Cnty Rd 209

Good

Over: Little Popo Agie River

Coal Mine Road CN 10-209, Fremont, WY

Built 1995 Load: 32.4 t ADT: 168

La Cnty Rd 124-2

Good

Over: Unnamed Draw

9 Mi North Of Cheyenne, Laramie, WY

Built 2008 Load: 32.4 t ADT: 474

Butler Spaeth Road

Good

Over: Donkey Creek

Gillette Butler Spaeth R, Campbell, WY

Built 2007 Load: 32.4 t ADT: 3,832

I-80 EBL

Good

Over: Muddy Creek

Cheyenne - Nebraska Line, Laramie, WY

Built 2017 Load: 32.4 t ADT: 5,226

US 85

Good

Over: UPRR

Lusk Streets, Niobrara, WY

Built 2016 Load: 32.4 t ADT: 3,162

Cr Cnty Rd 129

Good

Over: Sand Creek

3.4 Mi. S.W Of Beulah, Crook, WY

Built 2017 Load: 32.4 t ADT: 131

Cr Cnty Rd 129

Good

Over: Sand Creek

3.8 Mi. S.W Of Beulah, Crook, WY

Built 2017 Load: 32.4 t ADT: 131

Cr Cnty Rd 129

Good

Over: Sand Creek

4.0 Mi. S.W Of Beulah, Crook, WY

Built 2017 Load: 32.4 t ADT: 131

Cr Cnty Rd 129

Good

Over: Sand Creek

4.0 Mi. S.W Of Beulah, Crook, WY

Built 2017 Load: 32.4 t ADT: 131

Cr Cnty Rd 129

Good

Over: Sand Creek

4.0 Mi. S.W Of Beulah, Crook, WY

Built 2017 Load: 32.4 t ADT: 131

Cr Cnty Rd 129

Good

Over: Sand Creek

4.0 Mi. S.W Of Beulah, Crook, WY

Built 2017 Load: 32.4 t ADT: 131

Pl Cnty Rd 204

Good

Over: Laramie River Overflow

9.5 mi west of Wheatland, Platte, WY

Built 2017 Load: 32.4 t ADT: 14

US 26

Good

Over: Wildlife Crossing

Hoback Jct - Jackson, Teton, WY

Built 2022 Load: 32.4 t ADT: 11,439

WYO 238

Good

Over: Stump Creek

Auburn North, Lincoln, WY

Built 2019 Load: 32.4 t ADT: 811

WYO 238

Good

Over: E Channel Salt River

Auburn - Afton, Lincoln, WY

Built 2019 Load: 32.4 t ADT: 1,372

Fr Cnty Rd 5

Good

Over: Sweetwater River

3 Mi N Of Jeffrey City, Fremont, WY

Built 2017 Load: 32.4 t ADT: 67

Tnl Hill Rd Realgn

Good

Over: Wyoming Canal

8 miles NW of Midvale, Fremont, WY

Built 2018 Load: 32.4 t ADT: 26

Cb Cnty Rd 121

Good

Over: Medicine Bow River

12 Mi Nw Of Medicine Bow, Carbon, WY

Built 2018 Load: 32.4 t ADT: 121

Pa Cnty Rd L3B

Good

Over: Deaver Canal

3 Miles N.W. of Garland, Park, WY

Built 2019 Load: 32.4 t ADT: 128

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

US 189

Good

Over: Wildlife Crossing

LaBarge - Big Piney, Sublette, WY

Built 2022 Load: 32.4 t ADT: 814

Sb Cnty Rd 116

Good

Over: Horse Creek

10 Mi west of Daniel Jct., Sublette, WY

Built 2022 Load: 32.4 t ADT: 38

IRR BIA RTE 5

Good

Over: S FORK LITTLE WIND RIVER

3.2KM WEST OF FT WASHAKIE, Fremont, WY

Built 1965 Load: 32.6 t ADT: 500

IRR BIA RTE 32

Good

Over: CROW CREEK

4.4 KM NE OF CROWHEART, Fremont, WY

Built 2013 Load: 32.6 t ADT: 15

Glendo Park Road

Good

Over: Glendo Dam Spillway

4.2 mi E-SE of Glendo WY, Platte, WY

Built 1954 Load: 32.7 t ADT: 200

NFSR 105

Good

Over: TURPIN CREEK

0.02 MI. E OF NFSR 100, Carbon, WY

Built 1986 Load: 32.7 t ADT: 21

FDR

Good

Over: LITTLE SUNLIGHT CREEK

NO DATA ENTERED, Park, WY

Built 1973 Load: 32.7 t ADT: 50

537

Good

Over: WIND RIVER

20 MILES WEST OF DUBOIS, Fremont, WY

Built 2008 Load: 32.7 t ADT: 50

GRAND LOOP ROAD

Good

Over: STREAM

2.1 MI. SOUTH OF LAKE JCT, Teton, WY

Built 1961 Load: 32.7 t ADT: 4,500

I-25 NBL and SBL

Good

Over: Duck Creek

Colorado Line - Cheyenne, Laramie, WY

Built 1963 Load: 32.7 t ADT: 9,466

I-25 NBL

Good

Over: Chugwater Creek

Cheyenne - Chugwater, Platte, WY

Built 1969 Load: 32.7 t ADT: 3,170

Showing 2,251-2,300 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.