State profile · Below median Poor share

Wyoming bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Wyoming, based on the FHWA National Bridge Inventory.

3,181
Public bridges
26.2%
Good condition
5.4%
Poor condition

Data updated May 2026

Total Bridges

3,181

Public highway bridges in Wyoming

Good Condition

26.2%

833 bridges rated 7-9

-23.8pp vs 50% benchmark

Poor Condition

5.4%

172 bridges whose lowest applicable component is rated 0-4

-1.6pp vs national avg 7.0%

Wyoming vs national bridge condition

Wyoming - Good condition share 26.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Wyoming - Poor-condition share 18.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Wyoming32%61.4%GoodFairPoor
Bridge inventory deck-condition mix - Wyoming (FHWA NBI)

Counties (23)

Albany 124 Big Horn 93 Campbell 158 Carbon 207 Converse 147 Crook 176 Fremont 177 Goshen 108 Hot Springs 40 Johnson 204 Laramie 261 Lincoln 131 Natrona 138 Niobrara 34 Park 187 Platte 163 Sheridan 171 Sublette 109 Sweetwater 196 Teton 119 Uinta 134 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.

IN

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

KS

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867
Selected

WY

Wyoming

5.41% top marginal rate
Structure
Progressive
Burden @ $100K
$3,181

ID

Idaho

5.51% top marginal rate
Structure
Progressive
Burden @ $100K
$1,742

MS

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

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.

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

BLM Road 4116

Poor

Over: Big Sandy River

35 Miles Se Of Boulder, Sublette, WY

Built 1982 Load: 5.4 t ADT: 49

NO DATA ENTERED

Poor

Over: NO DATA ENTERED

NO DATA ENTERED, Lincoln, WY

Built 2013 Load: 5.5 t ADT: 50

Sh Cnty Rd 110

Poor

Over: Tongue River

7 Mi Nw Of Sheridan, Sheridan, WY

Built 1903 Load: 5.5 t ADT: 179

All Bridges in Wyoming

FOREST ROAD 10043

Fair

Over: GREYS RIVER

NO DATA ENTERED, Lincoln, WY

Built 1967 Load: 21.4 t ADT: 50

I-25 Service Road

Fair

Over: South Fork Powder River

WYO 387 Jct - Buffalo, Johnson, WY

Built 1932 Load: 21.6 t ADT: 79

Wa Cnty Rd 580A

Fair

Over: Nowood River

1 Mi S.W. Of Tensleep, Washakie, WY

Built 1935 Load: 21.6 t ADT: 16

NFSR 206

Fair

Over: SOUTH FRENCH CREEK

9.3 MI. S. OF SH 130, Carbon, WY

Built 1960 Load: 21.7 t ADT: 26

IRR BIA RTE 31

Fair

Over: MEADOW CREEK

1.5 KM SE OF CROWHEART, Fremont, WY

Built 1970 Load: 21.7 t ADT: 50

FOREST ROAD 30100

Fair

Over: SOUTH FK. SPREAD CKEEK

12 MI. SE. OF MORAN WY, Teton, WY

Built 1971 Load: 21.7 t ADT: 100

NO DATA ENTERED

Fair

Over: BLACKROCK CREEK

NO DATA ENTERED, Teton, WY

Built 1969 Load: 21.7 t ADT: 50

Cl Cnty Rd 18

Fair

Over: N Fork Dead Horse Creek

21 Mi. S.W. Of Gilletee, Campbell, WY

Built 1965 Load: 21.8 t ADT: 75

GRAND LOOP ROAD

Fair

Over: GARDNER RIVER

1.6 MI. SOUTHEAST OF MAMM, Park, WY

Built 1939 Load: 21.8 t ADT: 4,350

WYO 432

Fair

Over: Upper Hanover Canal

Worland - Nieber, Washakie, WY

Built 1958 Load: 21.8 t ADT: 233

I-80 EBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1969 Load: 21.9 t ADT: 5,820

WYO 159

Fair

Over: Interstate Canal

Torrington - North, Goshen, WY

Built 1953 Load: 21.9 t ADT: 96

I-90 EBL

Fair

Over: Machinery Pass

Buffalo - Gillette, Johnson, WY

Built 1960 Load: 21.9 t ADT: 2,080

I-90 WBL

Fair

Over: Machinery Pass

Buffalo - Gillette, Johnson, WY

Built 1960 Load: 21.9 t ADT: 2,000

La Cnty Rd 143-2

Fair

Over: Lodgepole Creek

2 Miles N. Of Hillsdale, Laramie, WY

Built 1958 Load: 21.9 t ADT: 278

FSR

Fair

Over: BLACKWATER CREEK

34 MILES W OF CODY, WY, Park, WY

Built 1971 Load: 22.0 t ADT: 50

I-90 Service Road

Fair

Over: Sundance Creek

Sundance - S Dakota Line, Crook, WY

Built 1954 Load: 22.2 t ADT: 440

US 85

Fair

Over: Cherry Creek

Cheyenne - Torrington, Goshen, WY

Built 1953 Load: 22.2 t ADT: 9,384

Ln Cnty Rd 153

Fair

Over: Cottonwood Creek

1 Mile East Of Smoot, Lincoln, WY

Built 1995 Load: 22.2 t ADT: 120

WYO 294

Fair

Over: Alkali Creek

Jct Us 14A - North, Park, WY

Built 1957 Load: 22.2 t ADT: 792

WYO 319

Fair

Over: Middle Fork Bear Creek

Jct I-25 - Glendo, Platte, WY

Built 1922 Load: 22.2 t ADT: 179

I-80 EBL

Fair

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 Load: 22.2 t ADT: 6,463

I-80 WBL

Fair

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 Load: 22.2 t ADT: 6,419

NFSR 500

Fair

Over: FRENCH CREEK

0.2 MI. W OF FRENCH CR CG, Carbon, WY

Built 1952 Load: 22.4 t ADT: 27

FOREST ROAD 10104

Fair

Over: BOULDER CREEK

NO DATA ENTERED, Sublette, WY

Built 1968 Load: 22.4 t ADT: 50

WYO 32

Fair

Over: Whistle Creek

Lovell - Emblem, Big Horn, WY

Built 1957 Load: 22.5 t ADT: 346

WYO 192

Fair

Over: Coal Creek

Kaycee - Jct WYO 387, Johnson, WY

Built 1956 Load: 22.5 t ADT: 116

I-25 Service Road

Fair

Over: Cantel Draw

Cheyenne - Chugwater, Laramie, WY

Built 1954 Load: 22.5 t ADT: 34

WYO 374

Fair

Over: Unnamed Draw

Jct I-80 - Green River, Sweetwater, WY

Built 1942 Load: 22.5 t ADT: 1,111

Cb Cnty Rd 320

Fair

Over: Medicine Bow River

14 Mi S. Of Medicine Bow, Carbon, WY

Built 1989 Load: 22.7 t ADT: 11

Co Cnty Rd 1A

Fair

Over: BNSF Railway

Approx 5 Mi Se Of Douglas, Converse, WY

Built 1946 Load: 22.7 t ADT: 104

WYO 196

Fair

Over: North Fork Powder River

Kaycee - Buffalo, Johnson, WY

Built 1935 Load: 22.7 t ADT: 309

FOREST ROAD 30520

Fair

Over: GRANITE CREEK

15 MI. EAST OF HOBACK JCT, Teton, WY

Built 1982 Load: 22.7 t ADT: 450

GRASSY LAKE ROAD

Fair

Over: POLECAT CREEK

N. on 89 Turn left into F, Teton, WY

Built 1975 Load: 22.7 t ADT: 100

BAILY CREEK ROAD

Fair

Over: BAILY CREEK

1.6 MILES SOUTH OF 016P,, Teton, WY

Built 2005 Load: 22.7 t ADT: 2

Sh Cnty Rd 149

Fair

Over: Piney Creek

9 Miles W. Of Ucross, Sheridan, WY

Built 1920 Load: 22.8 t ADT: 233

WYO 31

Fair

Over: Nowood River

Manderson - Hyattville, Big Horn, WY

Built 1951 Load: 22.9 t ADT: 679

Bh Cnty Rd R43H

Fair

Over: Paint Rock Creek

T49N R090W S19, Big Horn, WY

Built 1962 Load: 22.9 t ADT: 337

I-90 WBL

Fair

Over: Machinery Pass

Buffalo - Gillette, Campbell, WY

Built 1959 Load: 22.9 t ADT: 2,114

I-90 EBL

Fair

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 22.9 t ADT: 2,063

Jo Cnty Rd 1

Fair

Over: Rock Creek

T51N R082W S15, Johnson, WY

Built 1954 Load: 22.9 t ADT: 249

WYO 312

Fair

Over: Rock Creek

Jct WYO 34 - Wheatland, Platte, WY

Built 1931 Load: 22.9 t ADT: 497

I-80 EBL

Fair

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 Load: 22.9 t ADT: 6,424

FR 10214

Fair

Over: GREYS RIVER

NO DATA ENTERED, Lincoln, WY

Built 1963 Load: 23.0 t ADT: 50

FOREST ROAD 30530

Fair

Over: CLIFF CREEK

NO DATA ENTERED, Sublette, WY

Built 1958 Load: 23.0 t ADT: 10

I-80 Bus

Fair

Over: UPRR

Laramie, Curtis Street, Albany, WY

Built 1963 Load: 23.2 t ADT: 5,586

WYO 31

Fair

Over: Nowood River

Manderson - Hyattville, Big Horn, WY

Built 1952 Load: 23.2 t ADT: 486

WYO 31

Fair

Over: Medicine Lodge Creek

Manderson - Hyattville, Big Horn, WY

Built 1948 Load: 23.2 t ADT: 216

I-90 EBL

Fair

Over: Machinery Pass

Buffalo - Gillette, Campbell, WY

Built 1959 Load: 23.2 t ADT: 2,057

Co Cnty Rd 7

Fair

Over: Labonte Creek

15 Miles South Of Douglas, Converse, WY

Built 1970 Load: 23.2 t ADT: 42

Showing 701-750 of 3,181 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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.