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

US 14A

Fair

Over: Sidon Canal

Garland-Byron, Big Horn, WY

Built 1984 Load: 39.0 t ADT: 1,887

WYO 133

Fair

Over: Pilot Drainage

Kinnear-Pavillion Road, Fremont, WY

Built 1989 Load: 39.0 t ADT: 1,130

WYO 158

Fair

Over: Horse Creek

Huntley-Neb.State Line, Goshen, WY

Built 1986 Load: 39.0 t ADT: 166

WYO 120

Fair

Over: Grass Creek

Thermopolis-Meeteetse Rd, Hot Springs, WY

Built 1989 Load: 39.0 t ADT: 1,306

Pa Cnty Rd R8

Fair

Over: Garland Canal

Truck Bypass/Garland Cana, Park, WY

Built 2009 Load: 39.0 t ADT: 2,159

WYO 34

Fair

Over: Sybille Creek

Bosler Jct - Wheatland, Platte, WY

Built 1983 Load: 39.0 t ADT: 702

US 14

Fair

Over: Prairie Dog Creek

Sheridan - Ucross, Sheridan, WY

Built 1981 Load: 39.0 t ADT: 1,129

US 14

Fair

Over: Piney Creek

Sheridan - Ucross, Sheridan, WY

Built 1981 Load: 39.0 t ADT: 749

US 14

Fair

Over: Powder River

55.10 Mi East Of Sheridan, Sheridan, WY

Built 1990 Load: 39.0 t ADT: 210

US 191

Fair

Over: Killpecker Creek

Rock Springs - Farson, Sweetwater, WY

Built 1954 Load: 39.0 t ADT: 2,063

WYO 28

Fair

Over: Big Sandy River

Farson-Fontenelle, Sweetwater, WY

Built 1986 Load: 39.0 t ADT: 548

US 89

Fair

Over: Flat Creek

Jackson, Teton, WY

Built 1969 Load: 39.0 t ADT: 32,796

Ui Cnty Rd 105

Fair

Over: Bear River

5 Mo N Of Evanston, Uinta, WY

Built 1987 Load: 39.0 t ADT: 338

Go Cnty Rd 41B

Fair

Over: North Platte River

4.5 Mi Nw Of Torrington, Goshen, WY

Built 1987 Load: 39.2 t ADT: 295

US 14

Fair

Over: Beck Lake

Cody, Park, WY

Built 1970 Load: 39.2 t ADT: 7,497

US 14

Fair

Over: Little Rawhide Creek

4 Mi N Of Gillette, Campbell, WY

Built 2009 Load: 39.7 t ADT: 2,556

WYO 32

Fair

Over: Whistle Creek

Lovell - Emblem, Big Horn, WY

Built 1982 Load: 39.9 t ADT: 729

Bh Cnty Rd R9B

Fair

Over: Foster Gulch

2 Miles W.S.W. Of Lovell, Big Horn, WY

Built 1986 Load: 39.9 t ADT: 276

US 14

Fair

Over: Big Horn River

Greybull-Burgess Jct., Big Horn, WY

Built 1987 Load: 39.9 t ADT: 2,134

WYO 59

Fair

Over: Lightning Creek

Douglas - Reno Jct, Converse, WY

Built 1979 Load: 39.9 t ADT: 2,840

I-90 EBL

Fair

Over: Machinery Pass

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 39.9 t ADT: 2,665

I-90 WBL

Fair

Over: Machinery Pass

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 39.9 t ADT: 2,674

I-90 EBL

Fair

Over: Machinery Pass

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 39.9 t ADT: 2,665

I-90 WBL

Fair

Over: Machinery Pass

Sundance - S Dakota Line, Crook, WY

Built 1977 Load: 39.9 t ADT: 2,674

WYO 196

Fair

Over: Bull Creek

Kaycee-Buffalo, Johnson, WY

Built 1989 Load: 39.9 t ADT: 395

Dell Range Blvd

Fair

Over: Dry Creek

Dell Range Blvd Cheyenne, Laramie, WY

Built 1982 Load: 39.9 t ADT: 33,875

FOREST ROAD 10072

Fair

Over: N. FORK SMITH CREEK

T29N, R118W, S24, Lincoln, WY

Built 1985 Load: 39.9 t ADT: 50

US 189

Fair

Over: Birch Creek

Labarge, Lincoln, WY

Built 1986 Load: 39.9 t ADT: 1,972

Pl Cnty Rd 133

Fair

Over: North Laramie River

15 Mi N.W. Of Wheatland, Platte, WY

Built 1995 Load: 39.9 t ADT: 50

US 191

Fair

Over: Pole Creek

Farson - Pinedale, Sublette, WY

Built 1980 Load: 39.9 t ADT: 3,598

US 189

Fair

Over: South Fork Green River

Kemmerer - Daniel Jct, Sublette, WY

Built 1981 Load: 39.9 t ADT: 1,380

US 191

Fair

Over: Big Sandy River

Farson - Pinedale, Sweetwater, WY

Built 1958 Load: 39.9 t ADT: 3,171

US 26

Fair

Over: Unnamed Draw

Moran Junction - Dubois, Teton, WY

Built 2009 Load: 39.9 t ADT: 1,612

US 14

Fair

Over: Boxelder Creek

Sheridan - Ucross, Sheridan, WY

Built 1981 Load: 40.5 t ADT: 749

Park Street

Fair

Over: Little Goose Creek

City Of Sheridan, Sheridan, WY

Built 1996 Load: 40.5 t ADT: 733

US 14A

Fair

Over: Sidon Canal

Garland-Byron, Big Horn, WY

Built 1984 Load: 40.8 t ADT: 1,887

WYO 51

Fair

Over: BNSF Railway

Gillette - Moorcroft, Campbell, WY

Built 1980 Load: 40.8 t ADT: 1,452

Cl Cnty Rd 53

Fair

Over: BNSF Railway

25 Mi. S.S.E. Of Gillette, Campbell, WY

Built 1981 Load: 40.8 t ADT: 150

Co Cnty Rd 24

Fair

Over: Roaring Fork Creek

28 Mi Sw Of Douglas, Converse, WY

Built 2004 Load: 40.8 t ADT: 52

Cr Cnty Rd 200

Fair

Over: Little Missouri River

18 Miles North Of Oshoto, Crook, WY

Built 2000 Load: 40.8 t ADT: 14

US 287

Fair

Over: Willow Creek

WYO 28 Jct - Lander, Fremont, WY

Built 1982 Load: 40.8 t ADT: 2,100

WYO 133

Fair

Over: Pilot Canal

Kinnear-Pavillion Road, Fremont, WY

Built 1989 Load: 40.8 t ADT: 1,130

I-25 / US 87 Bus

Fair

Over: Clear Creek

Buffalo Main Street, Johnson, WY

Built 1975 Load: 40.8 t ADT: 5,720

WYO 191

Fair

Over: North Fork Powder River

Kaycee-Mayoworth, Johnson, WY

Built 1999 Load: 40.8 t ADT: 68

I-25 NBL

Fair

Over: BNSF Railway

Colorado Line - Cheyenne, Laramie, WY

Built 1964 Load: 40.8 t ADT: 9,466

Warren Avenue

Fair

Over: Crow Creek

Cheyenne Warren Avenue, Laramie, WY

Built 2008 Load: 40.8 t ADT: 498

Ln Cnty Rd 173S

Fair

Over: East Side Canal

1 Mile South Of Thayne, Lincoln, WY

Built 2006 Load: 40.8 t ADT: 120

Ni Cnty Rd 14

Fair

Over: Lightning Creek

N. Lance Creek Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 29

Ni Cnty Rd 14

Fair

Over: Cow Creek

N. Lance Creek Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 29

Pa Cnty Rd L14B

Fair

Over: Willwood Canal

2 Miles S.W. Of Ralston, Park, WY

Built 1988 Load: 40.8 t ADT: 206

Showing 1,901-1,950 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.