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

WYO 433

Good

Over: Dry Draw

Worland - Manderson, Washakie, WY

Built 1948 Load: 32.7 t ADT: 764

WYO 319

Good

Over: Baxter Draw

Jct I-25 - Glendo, Platte, WY

Built 1935 Load: 32.7 t ADT: 205

WYO 789

Good

Over: Sweaney Draw

Lander - Riverton, Fremont, WY

Built 1976 Load: 32.7 t ADT: 4,747

I-90 WBL On Ramp

Good

Over: Unnamed Draw

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 32.7 t ADT: 507

WYO 212

Good

Over: Henderson Drainage Ditch

College Drive Cheyenne, Laramie, WY

Built 1977 Load: 32.7 t ADT: 28,658

WYO 72

Good

Over: Slough Creek

I-80 to Elk Mountain, Carbon, WY

Built 1975 Load: 32.7 t ADT: 365

WYO 89

Good

Over: Chapman Canal

Evanston - Utah Line, Uinta, WY

Built 1978 Load: 32.7 t ADT: 1,935

WYO 34

Good

Over: North Sybille Creek

Bosler Jct - Jct I-25, Albany, WY

Built 1976 Load: 32.7 t ADT: 1,287

2nd Street

Good

Over: Dead Horse Canyon Creek

2nd Street Rock Springs, Sweetwater, WY

Built 1940 Load: 32.7 t ADT: 5,344

9th Street

Good

Over: Spring Creek

9Th Street-Laramie, Albany, WY

Built 1960 Load: 32.7 t ADT: 1,756

La Cnty Rd 232-1

Good

Over: Horse Creek

36 Miles N. Of Cheyenne, Laramie, WY

Built 1960 Load: 32.7 t ADT: 79

Jo Cnty Rd 265

Good

Over: Unnamed Draw

18.5 Miles S. Of Buffalo, Johnson, WY

Built 1960 Load: 32.7 t ADT: 34

Pa Cnty Rd R4H

Good

Over: Bitter Creek

0.4 Miles W. Of Garland, Park, WY

Built 1967 Load: 32.7 t ADT: 106

Sb Cnty Rd 144

Good

Over: Willow Creek

4 Mi. N.W. Of Pinedale, Sublette, WY

Built 1963 Load: 32.7 t ADT: 1,224

WYO 295

Good

Over: Frannie Canal

Powell-Elk Basin, Park, WY

Built 1983 Load: 32.7 t ADT: 166

Pa Cnty Rd R10A

Good

Over: Frannie Canal

5.5 Mi. N. Of Powell, Park, WY

Built 1972 Load: 32.7 t ADT: 384

US 26

Good

Over: Lava Creek

Moran Jct.-Dubois, Teton, WY

Built 1985 Load: 32.7 t ADT: 1,612

Go Cnty Rd 47A

Good

Over: Springer Main Lateral

6 Mi. N.E. Of Yoder, Goshen, WY

Built 1965 Load: 32.7 t ADT: 68

Go Cnty Rd 44B

Good

Over: Horse Creek

6 Mi. N. Of Hawk Springs, Goshen, WY

Built 1960 Load: 32.7 t ADT: 68

Go Cnty Rd 32C

Good

Over: Horse Creek

0.5 Mi. E. Of Hawk Spring, Goshen, WY

Built 1965 Load: 32.7 t ADT: 168

Go Cnty Rd 10

Good

Over: Bear Creek

12 Miles W. Of Lagrange, Goshen, WY

Built 1955 Load: 32.7 t ADT: 9

Cb Cnty Rd 320

Good

Over: Sand Creek

13 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1985 Load: 32.7 t ADT: 11

Bh Cnty Rd R9A

Good

Over: Sage Creek

2 Miles W. Of Lovell, Big Horn, WY

Built 1986 Load: 32.7 t ADT: 187

WYO 319

Good

Over: Valley Ditch

Glendo-Orin Road, Converse, WY

Built 1984 Load: 32.7 t ADT: 295

Daley Street

Good

Over: Niobrara River

Lusk, Niobrara, WY

Built 1986 Load: 32.7 t ADT: 340

US 287

Good

Over: Unnamed Draw

Muddy Gap - Lander, Fremont, WY

Built 1985 Load: 32.7 t ADT: 546

WYO 487

Good

Over: Sand Creek

Medicine Bow-Casper, Carbon, WY

Built 1985 Load: 32.7 t ADT: 546

WYO 487

Good

Over: Little Red Creek

Medicine Bow - Jt WYO 220, Natrona, WY

Built 1984 Load: 32.7 t ADT: 832

WYO 270

Good

Over: Miller Draw

Hartville-Manville, Platte, WY

Built 1982 Load: 32.7 t ADT: 535

US 26

Good

Over: Indian Creek

Dubois-Diversion Dam Jct., Fremont, WY

Built 1986 Load: 32.7 t ADT: 1,554

WYO 230

Good

Over: Big Creek

Riverside-Colorado Line, Carbon, WY

Built 1988 Load: 32.7 t ADT: 478

WYO 294

Good

Over: W Fork Big Sand Coulee

P-32 - P-33 Connector, Park, WY

Built 1961 Load: 32.7 t ADT: 792

WYO 294

Good

Over: Unnamed Draw

P-32 - P-33 Connector, Park, WY

Built 1961 Load: 32.7 t ADT: 792

US 189

Good

Over: Unnamed Draw

Kemmerer-Big Piney, Sublette, WY

Built 1986 Load: 32.7 t ADT: 814

US 14

Good

Over: Town Draw

Sheridan Gillette, Sheridan, WY

Built 1987 Load: 32.7 t ADT: 1,206

WYO 295

Good

Over: Willwood Draw

Powell-Woodwood Road, Park, WY

Built 1987 Load: 32.7 t ADT: 1,151

US 14

Good

Over: Piney Creek

Sheridan-Gillette Road, Sheridan, WY

Built 1987 Load: 32.7 t ADT: 829

US 26

Good

Over: Dinwoody Canal

Dubois-Diversion Dam Jct., Fremont, WY

Built 1988 Load: 32.7 t ADT: 1,554

WYO 196

Good

Over: Beaver Creek

T46W R082N S02, Johnson, WY

Built 1989 Load: 32.7 t ADT: 48

WYO 196

Good

Over: M Fork Crazy Woman Creek

Kaycee-Buffalo, Johnson, WY

Built 1989 Load: 32.7 t ADT: 48

US 26

Good

Over: Madden Draw

Riverton-Shoshoni, Fremont, WY

Built 1989 Load: 32.7 t ADT: 7,680

Fr Cnty Rd 404

Good

Over: Poison Creek

T38N R094W Sec 27, Fremont, WY

Built 1987 Load: 32.7 t ADT: 105

Pa Cnty Rd L8A

Good

Over: Bitter Creek

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

Built 1989 Load: 32.7 t ADT: 356

WYO 390

Good

Over: Granite Creek

Wil-Grand Teton Natl Park, Teton, WY

Built 1972 Load: 32.7 t ADT: 1,804

Pa Cnty Rd R1A

Good

Over: Sidon Canal

Apx 4 Miles Se Of Garland, Park, WY

Built 1970 Load: 32.7 t ADT: 117

US 85

Good

Over: Bobcat Creek

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1991 Load: 32.7 t ADT: 1,079

Na Cnty Rd 319

Good

Over: Casper Canal

14 Miles E. Of Casper, Natrona, WY

Built 1992 Load: 32.7 t ADT: 6

WYO 585

Good

Over: Silver Creek

Four Corners-Sundance Rd, Crook, WY

Built 1990 Load: 32.7 t ADT: 1,218

WYO 585

Good

Over: Inyan Kara Creek

Four Corners-Sundanced Rd, Crook, WY

Built 1990 Load: 32.7 t ADT: 903

I-80 EBL

Good

Over: Unnamed Draw

Laramie - Cheyenne, Albany, WY

Built 1946 Load: 32.7 t ADT: 6,860

Showing 2,351-2,400 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.