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

NFSR 509

Good

Over: LAKE CREEK

6 MI. NW OF FOXPARK WY, Albany, WY

Built 1953 Load: 14.3 t ADT: 18

FDR 26

Good

Over: BIG GOOSE CREEK

7.6 MI ON FDR 26, Sheridan, WY

Built 1986 Load: 15.2 t ADT: 56

FDR

Good

Over: LITTLE POPO AGIE

NO DATA ENTERED, Fremont, WY

Built 1937 Load: 15.2 t ADT: 50

NFSR 658

Good

Over: LA BONTE CREEK

1 MI. W OF CURTISGULCH CG, Albany, WY

Built 1965 Load: 15.9 t ADT: 50

FOREST ROAD 10003

Good

Over: GREYS RIVER

NO DATA ENTERED, Lincoln, WY

Built 1958 Load: 16.8 t ADT: 50

NFSR 349

Good

Over: LIBBY CREEK

ENTRANCE TO SPRUCE CG, Albany, WY

Built 1961 Load: 17.2 t ADT: 44

FOREST ROAD 31000

Good

Over: FALL CREEK

11 MI. S. OF JACKSON WY, Teton, WY

Built 2014 Load: 17.2 t ADT: 50

BEARTOOTH HIGHWAY

Good

Over: LAKE CREEK

19.0 MI. EAST OF NE ENTRA, Park, WY

Built 1974 Load: 17.2 t ADT: 1,775

I-25 Service Road

Good

Over: Unnamed Draw

Bar Nunn North, Natrona, WY

Built 1948 Load: 17.2 t ADT: 85

ROAD

Good

Over: N. LEIGH CREEK

NO DATA ENTERED, Teton, WY

Built 1974 Load: 18.5 t ADT: 50

FDR 373

Good

Over: MIDDLE FORK CLEAR CREEK

.50 MI WEST OF HWY 16, Johnson, WY

Built 1959 Load: 19.1 t ADT: 25

FOREST ROAD 10103

Good

Over: LABARGE CREEK

NO DATA ENTERED, Sublette, WY

Built 1997 Load: 19.1 t ADT: 50

WYO 414

Good

Over: Blacks Fork River

1.5 Miles North Of Urie, Uinta, WY

Built 1989 Load: 19.2 t ADT: 4,393

US 191

Good

Over: Boulder Creek

Farson - Pinedale, Sublette, WY

Built 1956 Load: 19.6 t ADT: 3,598

WYO 92

Good

Over: Horse Creek

Jct Us 85 - Nebraska Line, Goshen, WY

Built 1957 Load: 20.0 t ADT: 520

I-80 Bus

Good

Over: Groshon Creek

I-80 Jct - Fort Bridger, Uinta, WY

Built 1961 Load: 20.2 t ADT: 4,215

WYO 319

Good

Over: Indian Creek

Glendo - Orin Jct, Converse, WY

Built 1949 Load: 20.6 t ADT: 295

Ni Cnty Rd 64

Good

Over: South Indian Creek

8 Miles E. Of Hat Creek, Niobrara, WY

Built 1958 Load: 20.6 t ADT: 40

Al Cnty Rd 422

Good

Over: Pioneer Canal

7 Mi. N.E. Of Harmony, Albany, WY

Built 1958 Load: 20.7 t ADT: 341

FDR

Good

Over: SUNLIGHT CREEK

31 MILES NW OF CODY WY, Park, WY

Built 1952 Load: 20.9 t ADT: 50

FDR

Good

Over: WIND RIVER

15 MILES WEST OF DUBOIS, Fremont, WY

Built 1949 Load: 21.4 t ADT: 50

I-25 SBL

Good

Over: Jo CR 208 (Reno Road)

Kaycee - Buffalo, Johnson, WY

Built 1967 Load: 21.6 t ADT: 1,472

Sb Cnty Rd 154

Good

Over: Highland Canal

1.4 Mi Ne Of Pinedale, Sublette, WY

Built 2013 Load: 21.8 t ADT: 886

Scottsbluff CoRd 1

Good

Over: Fort Laramie Canal

7S N92 Wyoming SL, Goshen, WY

Built 1970 Load: 21.8 t ADT: 168

US 20/26/87 EBL

Good

Over: Elkhorn Creek

East Yellowstone - Casper, Natrona, WY

Built 1957 Load: 21.9 t ADT: 3,035

NFSR 500

Good

Over: NORTH MULLEN CREEK

7.8 MI. E OF FRENCH CR CG, Carbon, WY

Built 1953 Load: 22.0 t ADT: 23

WYO 211

Good

Over: Horse Creek

Cheyenne - Chugwater, Laramie, WY

Built 1958 Load: 22.2 t ADT: 135

WYO 214

Good

Over: Unnamed Draw

Jct I-80 - Carpenter, Laramie, WY

Built 1950 Load: 22.2 t ADT: 1,185

NFSR 101

Good

Over: N. FORK ROCK CREEK

13.25 MI. NW OF SH 130, Carbon, WY

Built 1957 Load: 22.4 t ADT: 32

FDR

Good

Over: HORSE CREEK

NO DATA ENTERED, Fremont, WY

Built 1965 Load: 22.4 t ADT: 50

Ui Cnty Rd 271

Good

Over: Pine Grove Canal

5 Mi. W. Of Robertson, Uinta, WY

Built 1978 Load: 22.5 t ADT: 264

Jo Cnty Rd 1

Good

Over: North Rock Creek

15 Mi Nw Of Buffalo, Johnson, WY

Built 2010 Load: 22.5 t ADT: 165

Jo Cnty Rd 1

Good

Over: South Rock Creek

14 Mi Nw Of Buffalo, Johnson, WY

Built 2010 Load: 22.5 t ADT: 165

NFSR 338

Good

Over: DOUGLAS CREEK

1.2 MI. NE OF ROB ROY CG, Albany, WY

Built 1953 Load: 22.7 t ADT: 84

FDR 30500

Good

Over: LITTLE GRANITE CREEK

T39N R113W S 34, Teton, WY

Built 2000 Load: 22.7 t ADT: 450

FOREST ROAD 370766

Good

Over: FALL CREEK

T34N R107W S31, Sublette, WY

Built 2003 Load: 22.7 t ADT: 50

US 16

Good

Over: Canyon Creek

Worland - Buffalo, Washakie, WY

Built 1954 Load: 22.7 t ADT: 1,228

W 4-J Road

Good

Over: Donkey Creek

Four J Road Gillette, Campbell, WY

Built 1983 Load: 22.7 t ADT: 3,271

Cr Cnty Rd 24

Good

Over: Arch Creek

9 Miles north of Upton, Crook, WY

Built 2023 Load: 22.7 t ADT: 38

WYO 345

Good

Over: Six Mile Creek

Montana Line - Sheridan, Sheridan, WY

Built 1955 Load: 22.9 t ADT: 745

WYO 345

Good

Over: Early Creek

Montana Line - Sheridan, Sheridan, WY

Built 1955 Load: 22.9 t ADT: 745

FOREST ROAD 10138

Good

Over: LABARGE CREEK

NO DATA ENTERED, Lincoln, WY

Built 2002 Load: 23.0 t ADT: 50

US 16

Good

Over: Tensleep Branch Creek

Worland - Buffalo, Washakie, WY

Built 1953 Load: 23.2 t ADT: 1,044

WYO 353

Good

Over: Silver Creek

Boulder - Big Sandy, Sublette, WY

Built 1957 Load: 23.2 t ADT: 96

NFSR 330

Good

Over: N. FORK LITTLE LARAMIE

0.09 MI. W OF NFSR 101, Albany, WY

Built 1975 Load: 23.3 t ADT: 38

FOREST ROAD 10062

Good

Over: HAMS FORK

T26N R117W SECTION 9, Lincoln, WY

Built 1997 Load: 23.3 t ADT: 100

ROAD

Good

Over: SOUTH BOONE CREEK

NO DATA ENTERED, Teton, WY

Built 1974 Load: 23.3 t ADT: 24

I-90 WBL

Good

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 23.5 t ADT: 1,833

US 20/26/87 WBL

Good

Over: Elkhorn Creek

East Yellowstone - Casper, Natrona, WY

Built 1957 Load: 23.5 t ADT: 2,396

GOLF COURSE ROAD

Good

Over: AFWYGHLN02116

At southeast corner of th, Laramie, WY

Built 2002 Load: 23.6 t

Showing 2,001-2,050 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.