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

Ui Cnty Rd 171

Poor

Over: West Muddy Creek

5 Mi. S.W. Of Piedmont, Uinta, WY

Built 1975 Load: 7.2 t ADT: 264

Texas Trail

Poor

Over: North Platte River

Saratoga, Carbon, WY

Built 1929 Load: 7.2 t ADT: 59

Co Cnty Rd 41

Poor

Over: Dry Fork River

9 Miles North Of Bill, Converse, WY

Built 1972 Load: 8.5 t ADT: 98

US 30 Service Road

Poor

Over: Smiths Fork River

Cokeville, Lincoln, WY

Built 1908 Load: 9.1 t ADT: 26

Wa Cnty Rd 580A

Poor

Over: Big Cottonwood Creek

9 Mi West Of Tensleep, Washakie, WY

Built 1937 Load: 9.2 t ADT: 16

Ui Cnty Rd 222

Poor

Over: Uinta Canal No 3

2 Mi. N.W. Of Ft. Bridger, Uinta, WY

Built 1940 Load: 9.5 t ADT: 71

FDR

Poor

Over: LITTLE ROCK CREEK

37 MILES NW OF CODY WY, Park, WY

Built 1976 Load: 10.0 t ADT: 50

Fr Cnty Rd 442

Poor

Over: Middle Fork Popo Agie

5 Mi Sw Of Lander, Fremont, WY

Built 1950 Load: 10.0 t ADT: 77

Sh Cnty Rd 140

Poor

Over: BNSF Railway

Parkman, Sheridan, WY

Built 1916 Load: 10.2 t ADT: 135

Ui Cnty Rd 233

Poor

Over: Porter Hollow

15 Mi. N.E. Of Lyman, Uinta, WY

Built 1984 Load: 10.2 t ADT: 41

Jo Cnty Rd 14

Poor

Over: N F Crazy Woman Creek

13 Mi. S.W. Of Buffalo, Johnson, WY

Built 1997 Load: 10.2 t ADT: 53

Cb Cnty Rd 608

Poor

Over: Cow Creek

18 Miles N. Of Baggs, Carbon, WY

Built 1950 Load: 10.8 t ADT: 66

Jo Cnty Rd 78

Poor

Over: Middle Fork Powder River

11 Miles N. Of Barnum, Johnson, WY

Built 1989 Load: 10.8 t ADT: 13

We Cnty Rd 1A

Poor

Over: Unnamed Draw

23 Miles Se. Of Newcastle, Weston, WY

Built 1933 Load: 10.9 t ADT: 136

FOREST ROAD 10099

Poor

Over: NEW FK. LK. SPILLWAY

NO DATA ENTERED, Sublette, WY

Built 1958 Load: 11.3 t ADT: 50

Fr Cnty Rd 298

Poor

Over: Wind River

32 Mi. N.W. Of Riverton, Fremont, WY

Built 1925 Load: 11.4 t ADT: 26

Ui Cnty Rd 181

Poor

Over: Albert Creek

10 Mi. E. Of Evanston, Uinta, WY

Built 1950 Load: 11.4 t ADT: 63

Cb Cnty Rd 203

Poor

Over: North Platte River

10 Miles Ne. Of Riverside, Carbon, WY

Built 1930 Load: 11.8 t ADT: 97

Na Cnty Rd 102

Poor

Over: Badwater Creek

20 Miles N.W. Of Arminto, Natrona, WY

Built 1940 Load: 11.8 t ADT: 22

Cb Cnty Rd 3

Poor

Over: Medicine Bow River

8 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1915 Load: 12.4 t ADT: 82

La Cnty Rd 120-1

Poor

Over: Crow Creek

2 Mi West Of Cheyenne, Laramie, WY

Built 1955 Load: 12.4 t ADT: 381

WYO 233

Poor

Over: Hams Fork River

Kemmerer - North, Lincoln, WY

Built 1952 Load: 13.4 t ADT: 443

La Cnty Rd 210-2

Poor

Over: UPRR

T14N R065W S29, Laramie, WY

Built 1934 Load: 13.7 t ADT: 638

FR 10002

Poor

Over: MURPHY CREEK

11 MI. SE. OF ALPINE, Lincoln, WY

Built 1980 Load: 14.3 t ADT: 50

FR 10002

Poor

Over: MURPHY CREEK

12 MI. SE. OF ALPINE, Lincoln, WY

Built 1980 Load: 14.3 t ADT: 50

FOREST ROAD 10299

Poor

Over: DUTCH JOE CREEK

NO DATA ENTERED, Sublette, WY

Built 1956 Load: 14.3 t ADT: 50

Co Cnty Rd 27

Poor

Over: Little Sand Creek

Appx 9 Mi E. Of Glenrock, Converse, WY

Built 1991 Load: 14.4 t ADT: 147

WYO 435

Poor

Over: Tensleep Creek

Jct Us 16 - East, Washakie, WY

Built 1929 Load: 14.7 t ADT: 164

FOREST ROAD 30460

Poor

Over: HOBACK RIVER

20 MI. SE. OF JACKSON WY, Teton, WY

Built 1965 Load: 14.9 t ADT: 50

Co Cnty Rd 17

Poor

Over: Boxelder Creek

14 Miles S.E. Of Glenrock, Converse, WY

Built 1965 Load: 15.1 t ADT: 181

10th Street

Poor

Over: Canal No 2

Wheatland, Platte, WY

Built 1930 Load: 15.4 t ADT: 131

Fr Cnty Rd 314

Poor

Over: Big Wind River

20 Mi Se Of Dubois, Fremont, WY

Built 1920 Load: 15.7 t ADT: 39

Co Cnty Rd 14

Poor

Over: Laprele Creek

15 Miles S.W. Of Douglas, Converse, WY

Built 1965 Load: 17.0 t ADT: 42

Bull Lake Road

Poor

Over: Bull Lake Dam Spillway

36 mi W-NW of Riverton, Fremont, WY

Built 1938 Load: 17.1 t ADT: 5

Fr Cnty Rd 497

Poor

Over: Haymaker Draw

2.5 Miles Ne Of Riverton, Fremont, WY

Built 1921 Load: 17.2 t ADT: 139

WYO 314

Poor

Over: Chugwater Creek

Jct I-25 - East, Platte, WY

Built 1949 Load: 17.3 t ADT: 95

Bh Cnty Rd L55

Poor

Over: Big Horn River

6 Miles S. Of Manderson, Big Horn, WY

Built 1930 Load: 18.3 t ADT: 87

FOREST ROAD 10138

Poor

Over: GREYS RIVER

3 MI. EAST OF ALPINE WY., Lincoln, WY

Built 1954 Load: 18.8 t ADT: 600

NORTHEAST ENTRANCE

Poor

Over: YELLOWSTONE RIVER

0.64 MI. EAST OF TOWER JC, Park, WY

Built 1961 Load: 19.0 t ADT: 1,982

IRR BIA RTE 101

Poor

Over: SHOTGUN CREEK

15.3 KM SE OF MAIL CAMP, Fremont, WY

Built 1951 Load: 20.2 t ADT: 30

Bh Cnty Rd 72

Poor

Over: Shoshone River

2 Miles West Of Lovell, Big Horn, WY

Built 1926 Load: 20.2 t ADT: 117

We Cnty Rd 1A

Poor

Over: BNSF Railway

T44N R061W S10, Weston, WY

Built 1929 Load: 20.6 t ADT: 136

WYO 211

Poor

Over: M Fork Lodgepole Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 21.2 t ADT: 135

I-80 EBL

Poor

Over: Yellow Creek Road

Evanston Marginal, Uinta, WY

Built 1967 Load: 21.6 t ADT: 8,003

Co Cnty Rd 17

Poor

Over: Virden Creek

22 Mi. E.S.E. Of Douglas, Converse, WY

Built 1965 Load: 21.8 t ADT: 181

ROAD

Poor

Over: DARBY CREEK

NO DATA ENTERED, Teton, WY

Built 1960 Load: 22.0 t ADT: 50

I-80 Service Road

Poor

Over: North Platte River

Fort Steele Rest Area, Carbon, WY

Built 1930 Load: 22.2 t ADT: 265

FOREST ROAD 10389

Poor

Over: NORTH HORSE CREEK

22 MI. W. OF DANIEL JCT., Sublette, WY

Built 1959 Load: 23.0 t ADT: 50

Bh Cnty Rd L31

Poor

Over: Shell Creek

0.5 Miles N. Of Shell, Big Horn, WY

Built 1950 Load: 23.2 t ADT: 31

Hayden Arch Road

Poor

Over: Shoshone River

4.5 mi W-SW of Cody WY, Park, WY

Built 1924 Load: 23.4 t ADT: 100

Showing 2,951-3,000 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.