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 Service Road

Poor

Over: BNSF Railway

Cheyenne - Chugwater, Platte, WY

Built 1935 Load: 23.5 t ADT: 86

SOUTH ENTRANCE ROA

Poor

Over: UNNAMED CREEK

0.5 MI. SOUTH OF WEST THU, Teton, WY

Built 1972 Load: 23.6 t ADT: 1,598

Pa Cnty Rd L9A

Poor

Over: Bitter Creek

3.75 Mi. S.E. Of Garland, Park, WY

Built 1937 Load: 23.6 t ADT: 1,488

N Brooks Street

Poor

Over: Little Goose Creek

Val Vista Lane St., Sheridan, WY

Built 1970 Load: 23.6 t ADT: 4,611

Cb Cnty Rd 660

Poor

Over: North Platte River

12 Mi. E. Of Riverside, Carbon, WY

Built 1915 Load: 23.6 t ADT: 68

FOREST ROAD 30900

Poor

Over: SOUTH FORK FISH CREEK

NO DATA ENTERED, Teton, WY

Built 1966 Load: 23.7 t ADT: 50

WYO 94

Poor

Over: Wagonhound Creek

Douglas - South, Converse, WY

Built 1960 Load: 24.1 t ADT: 122

Culbertson Avenue

Poor

Over: Big Horn River

Worland, Washakie, WY

Built 1934 Load: 24.1 t ADT: 1,042

Pa Cnty Rd 1WAW

Poor

Over: Polecat Creek

Approx 6 Mi N. Of Garland, Park, WY

Built 1970 Load: 24.5 t ADT: 128

Fr Cnty Rd 412

Poor

Over: Pilot Canal

3 Miles E. Of Kinnear, Fremont, WY

Built 1970 Load: 24.5 t ADT: 149

Fr Cnty Rd 277

Poor

Over: Wiggins F E Wind River

T41N R105W S04, Fremont, WY

Built 1930 Load: 25.0 t ADT: 129

Pa Cnty Rd R6A

Poor

Over: Bitter Creek

3 Miles N.E. Of Powell, Park, WY

Built 1966 Load: 25.2 t ADT: 327

I-80 EBL

Poor

Over: WYO 374

Evanston - Green River, Sweetwater, WY

Built 1967 Load: 25.4 t ADT: 6,937

Ui Cnty Rd 218

Poor

Over: Blacks Fork Canal

2 Mi. Nw Of Mountain View, Uinta, WY

Built 1986 Load: 26.1 t ADT: 71

GRAND LOOP ROAD

Poor

Over: OTTER CREEK

2.5 MI. SOUTH OF CANYON J, Teton, WY

Built 1934 Load: 26.3 t ADT: 1,807

WYO 22

Poor

Over: Fish Creek

Jackson - Idaho Line, Teton, WY

Built 1949 Load: 26.3 t ADT: 17,430

I-25 SBL

Poor

Over: Richeau Creek

Chugwater - Wheatland, Platte, WY

Built 1958 Load: 26.5 t ADT: 3,173

18th Street

Poor

Over: Canal No 2

Wheatland, Platte, WY

Built 1978 Load: 27.0 t ADT: 131

Ni Cnty Rd 9

Poor

Over: Cheyenne River

6 Mi. N.E.Of Mule Crk Jct, Niobrara, WY

Built 1920 Load: 27.1 t ADT: 5

Sh Cnty Rd 103

Poor

Over: Little Goose Creek

T54N R084W S09, Sheridan, WY

Built 1961 Load: 27.1 t ADT: 19

Pl Cnty Rd 275

Poor

Over: Wheatland Creek

North Road - Wheatland, Platte, WY

Built 1975 Load: 27.1 t ADT: 366

GRAND LOOP ROAD

Poor

Over: RAVINE

4.5 MI. SOUTH OF MAMMOTH, Park, WY

Built 1977 Load: 27.2 t ADT: 1,807

WYO 211

Poor

Over: S Fork Lodgepole Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 27.2 t ADT: 135

Sw Cnty Rd 5

Poor

Over: Big Sandy River

17 Mi. S.W. Of Farson, Sweetwater, WY

Built 1960 Load: 27.2 t ADT: 9

WYO 374

Poor

Over: Green River

Jct I-80 - Green River, Sweetwater, WY

Built 1952 Load: 27.4 t ADT: 2,369

Cole Street

Poor

Over: Wheatland Creek

Wheatland, Platte, WY

Built 1979 Load: 27.8 t ADT: 966

Ln Cnty Rd 136

Poor

Over: Salt Creek

4 Miles Nw Of Afton, Lincoln, WY

Built 2008 Load: 27.8 t ADT: 54

Ui Cnty Rd 233

Poor

Over: Blacks Fork River

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

Built 1931 Load: 27.9 t ADT: 41

I-25 SBL

Poor

Over: Deer Creek

Douglas - Casper, Converse, WY

Built 1967 Load: 28.1 t ADT: 4,702

I-80 EBL

Poor

Over: WYO 377

Rock Springs - Rawlins, Sweetwater, WY

Built 1964 Load: 28.1 t ADT: 6,627

I-80 WBL

Poor

Over: CR 57 (Dutton Creek Rd)

Rawlins - Laramie, Albany, WY

Built 1969 Load: 28.1 t ADT: 6,206

Fr Cnty Rd 480

Poor

Over: Pilot Canal

Kinnear - North, Fremont, WY

Built 1950 Load: 28.1 t ADT: 261

WYO 154

Poor

Over: Fort Laramie Canal

Jct Us 85 - Yoder, Goshen, WY

Built 1962 Load: 28.1 t ADT: 672

I-25 NBL

Poor

Over: Machinery Pass

Glendo - Douglas, Platte, WY

Built 1972 Load: 28.1 t ADT: 3,471

Cl Cnty Rd 20

Poor

Over: Lil N Fk Dead Horse Crk

19 Mi. S.W. Of Gillette, Campbell, WY

Built 1965 Load: 28.1 t ADT: 242

FOREST ROAD 30530

Poor

Over: CLIFF CREEK

NO DATA ENTERED, Sublette, WY

Built 1974 Load: 28.5 t ADT: 150

I-25 SBL

Poor

Over: Deer Creek Road

Douglas - Casper, Converse, WY

Built 1967 Load: 29.0 t ADT: 4,702

WYO 22

Poor

Over: Snake River

Jackson - Idaho Line, Teton, WY

Built 1960 Load: 29.0 t ADT: 19,219

WYO 211

Poor

Over: Dry Horse Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 29.0 t ADT: 135

I-25 NBL

Poor

Over: BNSF / Irvine Road

Glendo - Douglas, Converse, WY

Built 1971 Load: 29.0 t ADT: 3,471

I-25 SBL

Poor

Over: BNSF / Irvine Road

Glendo - Douglas, Converse, WY

Built 1971 Load: 29.0 t ADT: 3,318

Na Cnty Rd 110

Poor

Over: South Fork Powder River

44 Miles N.W. Of Casper, Natrona, WY

Built 1977 Load: 29.0 t ADT: 53

Cr Cnty Rd 129

Poor

Over: I-90

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 29.0 t ADT: 131

Cb Cnty Rd 702

Poor

Over: Muddy Creek

1 Mile N. Of Baggs, Carbon, WY

Built 1976 Load: 29.0 t ADT: 158

E Works Street

Poor

Over: Little Goose Creek

Sheridan Streets, Sheridan, WY

Built 1970 Load: 29.0 t ADT: 408

I-25 SBL

Poor

Over: Golf Course Road

Douglas Marginal, Converse, WY

Built 1967 Load: 29.7 t ADT: 4,292

N Street

Poor

Over: Bitter Creek

Rock Springs Streets, Sweetwater, WY

Built 1976 Load: 29.8 t ADT: 925

Bh Cnty Rd 196

Poor

Over: Unnamed Draw

3 Miles East Of Greybull, Big Horn, WY

Built 1983 Load: 29.8 t ADT: 51

SOUTH ENTRANCE ROA

Poor

Over: LEWIS RIVER

9.8 MILES NORTH OF SOUTH, Teton, WY

Built 1960 Load: 29.9 t ADT: 3,952

S FRONTIER ROAD

Poor

Over: CROW CREEK

0.10 miles north of Missi, Laramie, WY

Built 1985 Load: 29.9 t ADT: 410

Showing 3,001-3,050 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.