State profile · Below national median SD

Wyoming bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Wyoming — drawn straight from the FHWA National Bridge Inventory.

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

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 rated 0-4

Structurally Deficient

5.4%

172 bridges flagged for repair priority

-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 — Structurally deficient share 18.0%
National avg

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

Condition Distribution

Bridge inventory deck-condition mix — Wyoming (FHWA NBI)

Wyoming26.186733731530964%50.330084878968876%GoodFairPoorStructurally Deficient
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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Wyoming on the same metric.

18

Indiana

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

20

Kansas

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

56

Wyoming

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

16

Idaho

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

28

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 composite NBI rating. Each is inspected at least every 24 months.

FIREHOLE LAKE DRIV

Structurally Deficient

Over: THERMAL AREA DRAINAGE

10 +/- MI. SOUTH OF MADIS, Teton, WY

Built 1935 Load: 3.6 t ADT: 1,500

Sb Cnty Rd 175

Structurally Deficient

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

Structurally Deficient

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

Structurally Deficient

Over: Tongue River

7 Mi Nw Of Sheridan, Sheridan, WY

Built 1903 Load: 5.5 t ADT: 179

All Bridges in Wyoming

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

Cb Cnty Rd 660

Poor

Over: North Platte River

12 Mi. E. Of Riverside, Carbon, WY

Built 1915 Load: 23.6 t ADT: 68

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

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

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 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

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

Pl Cnty Rd 275

Poor

Over: Wheatland Creek

North Road - Wheatland, Platte, WY

Built 1975 Load: 27.1 t ADT: 366

Sh Cnty Rd 103

Poor

Over: Little Goose Creek

T54N R084W S09, Sheridan, WY

Built 1961 Load: 27.1 t ADT: 19

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

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

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

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

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

Showing 3,051-3,100 of 3,181 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.