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

Ln Cnty Rd 136

Poor

Over: Salt Creek

4 Miles Nw Of Afton, Lincoln, WY

Built 2008 Load: 27.8 t ADT: 54

Cole Street

Poor

Over: Wheatland Creek

Wheatland, Platte, WY

Built 1979 Load: 27.8 t ADT: 966

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

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

I-25 SBL

Poor

Over: Deer Creek

Douglas - Casper, Converse, WY

Built 1967 Load: 28.1 t ADT: 4,702

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

FOREST ROAD 30530

Poor

Over: CLIFF CREEK

NO DATA ENTERED, Sublette, WY

Built 1974 Load: 28.5 t ADT: 150

Cb Cnty Rd 702

Poor

Over: Muddy Creek

1 Mile N. Of Baggs, Carbon, WY

Built 1976 Load: 29.0 t ADT: 158

WYO 211

Poor

Over: Dry Horse Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 29.0 t ADT: 135

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

E Works Street

Poor

Over: Little Goose Creek

Sheridan Streets, Sheridan, WY

Built 1970 Load: 29.0 t ADT: 408

WYO 22

Poor

Over: Snake River

Jackson - Idaho Line, Teton, WY

Built 1960 Load: 29.0 t ADT: 19,219

Bh Cnty Rd 196

Poor

Over: Unnamed Draw

3 Miles East Of Greybull, Big Horn, WY

Built 1983 Load: 29.8 t ADT: 51

N Street

Poor

Over: Bitter Creek

Rock Springs Streets, Sweetwater, WY

Built 1976 Load: 29.8 t ADT: 925

I-25 SBL

Poor

Over: Machinery Pass

Glendo - Douglas, Converse, WY

Built 1971 Load: 29.9 t ADT: 3,318

S FRONTIER ROAD

Poor

Over: CROW CREEK

0.10 miles north of Missi, Laramie, WY

Built 1985 Load: 29.9 t ADT: 410

WYO 212

Poor

Over: Crow Creek

College Drive Cheyenne, Laramie, WY

Built 1976 Load: 29.9 t ADT: 13,541

Pa Cnty Rd 3XQ

Poor

Over: Greybull River

23 Miles Ne. Of Meeteetse, Park, WY

Built 1955 Load: 29.9 t ADT: 52

SOUTH ENTRANCE ROA

Poor

Over: LEWIS RIVER

9.8 MILES NORTH OF SOUTH, Teton, WY

Built 1960 Load: 29.9 t ADT: 3,952

US 89

Poor

Over: Flat Creek

Hoback Jct - Jackson, Teton, WY

Built 1938 Load: 29.9 t ADT: 15,368

Ui Cnty Rd 157

Poor

Over: Mill Creek

13 Mi. S. Of Evantson, Uinta, WY

Built 1981 Load: 29.9 t ADT: 264

La Cnty Rd 124-2

Poor

Over: Lodgepole Creek

11 Mi Nw Of Cheyenne, Laramie, WY

Built 1935 Load: 30.0 t ADT: 474

US 191

Poor

Over: Hoback River

Daniel Jct - Hoback Jct, Sublette, WY

Built 1965 Load: 30.6 t ADT: 2,444

I-25 SBL

Poor

Over: Lodgepole Creek

Cheyenne - Chugwater, Laramie, WY

Built 1970 Load: 30.8 t ADT: 3,277

Sw Cnty Rd 51

Poor

Over: Sweetwater Creek

County Road 51, Sweetwater, WY

Built 1975 Load: 30.8 t ADT: 2,234

WYO 89

Poor

Over: Bear River

Evanston - Utah Line, Uinta, WY

Built 1978 Load: 30.8 t ADT: 1,935

Bh Cnty Rd 268

Poor

Over: Medicine Lodge Creek

T50N R089W S31, Big Horn, WY

Built 1970 Load: 31.0 t ADT: 188

I-25 NBL

Poor

Over: Boxelder Creek

Douglas - Casper, Converse, WY

Built 1958 Load: 31.0 t ADT: 4,684

Jo Cnty Rd 85

Poor

Over: Rock Creek

11 Mi. N.W. Of Buffalo, Johnson, WY

Built 1976 Load: 31.0 t ADT: 55

Washakie Avenue

Poor

Over: Lower Hanover Canal

Washakie Ave. Worland, Washakie, WY

Built 1970 Load: 31.0 t ADT: 1,490

Water Street

Poor

Over: Canal No 2

9Th And Water Street, Platte, WY

Built 1950 Load: 31.4 t ADT: 131

Fr Cnty Rd 476

Poor

Over: Pilot Canal

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

Built 1970 Load: 31.5 t ADT: 127

Pl Cnty Rd 47

Poor

Over: North Laramie River

5 Mi. N. Of Wheatland, Platte, WY

Built 1990 Load: 31.5 t ADT: 10

Wa Cnty Rd R34

Poor

Over: Spillway Hanover Canal

10 Miles N.E. Of Worland, Washakie, WY

Built 1929 Load: 31.5 t ADT: 117

I-25 SBL

Poor

Over: South Fork Bear Creek

Cheyenne - Chugwater, Laramie, WY

Built 1977 Load: 31.8 t ADT: 3,277

I-25 SBL

Poor

Over: North Laramie River

Wheatland - Glendo, Platte, WY

Built 1966 Load: 31.8 t ADT: 3,390

WYO 89

Poor

Over: Bear River Overflow

Evanston - Utah Line, Uinta, WY

Built 1978 Load: 31.8 t ADT: 1,935

I-90 WBL

Poor

Over: Machinery Pass

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 32.3 t ADT: 3,644

Jo Cnty Rd 1

Poor

Over: Rock Creek

4 Mi N.E. Of Buffalo, Johnson, WY

Built 1994 Load: 32.4 t ADT: 165

WYO 59

Poor

Over: Mikes Draw

Douglas-Bill, Converse, WY

Built 1980 Load: 32.7 t ADT: 2,840

Go Cnty Rd 136

Poor

Over: Unnamed Draw

5.5 Mi. N. Of Jay-Em, Goshen, WY

Built 1983 Load: 32.7 t ADT: 68

Go Cnty Rd 43E

Poor

Over: Springer Main Lateral

2.5 Miles N.E. Of Yoder, Goshen, WY

Built 1973 Load: 32.7 t ADT: 7

Go Cnty Rd 29C

Poor

Over: Fort Laramie Canal

3 Mi. N. Of Veteran, Goshen, WY

Built 1973 Load: 32.7 t ADT: 168

WYO 120

Poor

Over: Buffalo Creek

Thermop-Meeteetse, Hot Springs, WY

Built 1992 Load: 32.7 t ADT: 1,423

WYO 220

Poor

Over: Sweetwater River

Muddy Gap Jct-WYO 487 Jct, Natrona, WY

Built 1970 Load: 32.7 t ADT: 1,771

WYO 374

Poor

Over: Grease Wood Draw

Jct I-80 - Green River, Sweetwater, WY

Built 1942 Load: 32.7 t ADT: 2,369

Sw Cnty Rd 51

Poor

Over: Little Bitter Creek

6.5 Mi.Sw Of Rock Springs, Sweetwater, WY

Built 1975 Load: 32.7 t ADT: 2,234

WYO 414

Poor

Over: Unnamed Draw

Jct I-80 - Utah Line, Uinta, WY

Built 1961 Load: 32.7 t ADT: 593

Showing 3,101-3,150 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.