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

Sh Cnty Rd 131

Fair

Over: Prairie Dog Creek

10 Mi Se Of Sheridan, Sheridan, WY

Built 1990 Load: 34.5 t ADT: 157

US 189

Fair

Over: North Fork Green River

Kemmerer - Daniel Jct, Sublette, WY

Built 1981 Load: 34.5 t ADT: 1,380

Sb Cnty Rd 222

Fair

Over: Green River

1 Mile N. Labarge, Sublette, WY

Built 1991 Load: 34.5 t ADT: 49

US 191

Fair

Over: Duck Creek

Pinedale-Daniel Jct, Sublette, WY

Built 1993 Load: 34.5 t ADT: 2,924

US 191

Fair

Over: Barber Creek

Pinedale-Daniel Jct, Sublette, WY

Built 1993 Load: 34.5 t ADT: 5,193

OLD FAITHFUL INTER

Fair

Over: GRAND LOOP ROAD

17.5 MI. NW OF WEST THUMB, Teton, WY

Built 1969 Load: 34.5 t ADT: 3,852

US 189

Fair

Over: Albert Creek

Lazeart Jct-Kemmerer, Uinta, WY

Built 1987 Load: 34.5 t ADT: 1,134

US 16

Fair

Over: Slick Creek

Worland-Manderson Road, Washakie, WY

Built 1985 Load: 34.5 t ADT: 2,132

Wa Cnty Rd 82

Fair

Over: Little Canyon Creek

19.5 Mi. S Of Tensleep, Washakie, WY

Built 1990 Load: 34.5 t ADT: 59

WYO 433

Fair

Over: Big Horn Canal

Worland Streets, Washakie, WY

Built 2006 Load: 34.5 t ADT: 2,857

US 85

Fair

Over: BNSF Railway

Mule Cr Jct - Newcastle, Weston, WY

Built 1963 Load: 34.5 t ADT: 2,041

US 16

Fair

Over: Pine Creek

Upton - Newcastle, Weston, WY

Built 1971 Load: 34.5 t ADT: 1,673

We Cnty Rd 7A

Fair

Over: Cheyenne River

16 Miles S.W. Of Clareton, Weston, WY

Built 1981 Load: 34.5 t ADT: 32

WYO 116 S

Fair

Over: Coyote Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 34.5 t ADT: 309

WYO 116 S

Fair

Over: North Fork Soda Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 34.5 t ADT: 309

WYO 116 S

Fair

Over: South Fork Soda Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 34.5 t ADT: 309

WYO 130

Fair

Over: N F Little Laramie River

Laramie - Jct WYO 230, Albany, WY

Built 1968 Load: 34.7 t ADT: 723

WYO 59

Fair

Over: East Fork Hay Creek

Reno Jct - Gillette, Campbell, WY

Built 1977 Load: 34.7 t ADT: 5,017

WYO 150

Fair

Over: Bear River

Evanston South, Uinta, WY

Built 1989 Load: 34.7 t ADT: 1,743

WYO 28

Fair

Over: Sweetwater River

Farson - Jct Us 287, Fremont, WY

Built 1981 Load: 34.9 t ADT: 1,382

NFSR 550

Fair

Over: N.F. ENCAMPMENT RIVER

2.05 MI S of SH 70, Carbon, WY

Built 1967 Load: 35.0 t ADT: 50

I-25 SBL

Fair

Over: Laprele Creek

Douglas - Casper, Converse, WY

Built 1958 Load: 35.3 t ADT: 5,476

Na Cnty Rd 407

Fair

Over: North Platte River

Alcova, Natrona, WY

Built 2019 Load: 35.3 t ADT: 63

US 14

Fair

Over: Spotted Horse Creek

Ucross - Jct WYO 59, Campbell, WY

Built 1977 Load: 35.4 t ADT: 492

I-80 EBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1964 Load: 35.4 t ADT: 6,360

WYO 487

Fair

Over: Medicine Bow River

Medicine Bow, Carbon, WY

Built 1959 Load: 35.4 t ADT: 652

WYO 789

Fair

Over: Little Snake River

Creston Jct - Colo Line, Carbon, WY

Built 1978 Load: 35.4 t ADT: 2,593

WYO 95

Fair

Over: N Platte River Overflow

Glenrock-Ross, Converse, WY

Built 1994 Load: 35.4 t ADT: 1,551

US 14

Fair

Over: Belle Fourche River

Moorcroft-Devils Twr Jct, Crook, WY

Built 1987 Load: 35.4 t ADT: 793

WYO 789

Fair

Over: Rogers/Gregg Ditch

Lander - Riverton, Fremont, WY

Built 1976 Load: 35.4 t ADT: 3,514

US 26

Fair

Over: Horse Creek

Moran Jct - Dubois, Fremont, WY

Built 1981 Load: 35.4 t ADT: 4,296

WYO 173

Fair

Over: BNSF Railway

Thermopolis East, Hot Springs, WY

Built 1992 Load: 35.4 t ADT: 195

Jo Cnty Rd 13

Fair

Over: Crazy Woman Creek

8 Miles South Of Buffalo, Johnson, WY

Built 1983 Load: 35.4 t ADT: 75

I-80 WBL

Fair

Over: UPRR

Laramie - Cheyenne, Laramie, WY

Built 1958 Load: 35.4 t ADT: 6,639

US 30

Fair

Over: Crow Creek

W.Lincolnway-Cheyenne, Laramie, WY

Built 1987 Load: 35.4 t ADT: 18,504

Westland Road

Fair

Over: Crow Creek

24Th Street-Westland Road, Laramie, WY

Built 1991 Load: 35.4 t ADT: 2,376

US 89

Fair

Over: Dry Creek

Idaho Line - Afton, Lincoln, WY

Built 1975 Load: 35.4 t ADT: 2,336

US 189

Fair

Over: Hams Fork River

Kemmerer-Daniel Jct, Lincoln, WY

Built 1983 Load: 35.4 t ADT: 1,277

US 89

Fair

Over: Salt River

Border Jct - Smoot, Lincoln, WY

Built 1987 Load: 35.4 t ADT: 1,186

WYO 258 (Wyo Blvd)

Fair

Over: North Platte River

Casper, Natrona, WY

Built 1974 Load: 35.4 t ADT: 11,674

WYO 387

Fair

Over: Coal Draw

Midwest - Reno Jct, Natrona, WY

Built 1977 Load: 35.4 t ADT: 2,168

US 20

Fair

Over: Middle Fork Casper Creek

Casper-Shoshoni, Natrona, WY

Built 1984 Load: 35.4 t ADT: 2,908

US 14

Fair

Over: N Fork Shoshone River

Yellowstone Park - Cody, Park, WY

Built 1982 Load: 35.4 t ADT: 3,071

WYO 34

Fair

Over: Canal No 3

Bosler Jct - Jct I-25, Platte, WY

Built 1980 Load: 35.4 t ADT: 702

WYO 319

Fair

Over: Horseshoe Creek

Glendo-Wendover, Platte, WY

Built 1988 Load: 35.4 t ADT: 179

WYO 345

Fair

Over: Five Mile Creek

Montana Line - Sheridan, Sheridan, WY

Built 1952 Load: 35.4 t ADT: 500

I-90 EBL

Fair

Over: BNSF Railway

Sheridan Marginal, Sheridan, WY

Built 1962 Load: 35.4 t ADT: 4,669

I-90 WBL

Fair

Over: BNSF Railway

Sheridan Marginal, Sheridan, WY

Built 1962 Load: 35.4 t ADT: 5,095

5th Street

Fair

Over: Big Goose Creek

5th St. - Sheridan, Sheridan, WY

Built 1968 Load: 35.4 t ADT: 9,192

US 14

Fair

Over: Coal Creek

Sheridan-Gillette Road, Sheridan, WY

Built 1987 Load: 35.4 t ADT: 829

Showing 1,701-1,750 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.