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 14

Fair

Over: Unnamed Draw

Yellowstone Park-Cody, Park, WY

Built 1996 Load: 40.8 t ADT: 2,487

US 14

Fair

Over: Gunbarrel Creek

36 Mi. West Of Cody, Park, WY

Built 2000 Load: 40.8 t ADT: 2,487

US 14

Fair

Over: Clearwater Creek

Yellowstone Park - Cody, Park, WY

Built 1998 Load: 40.8 t ADT: 3,071

WYO 291

Fair

Over: Cody Canal W Sulphur Crk

South Fork Road, Park, WY

Built 1995 Load: 40.8 t ADT: 3,334

I-25 NBL

Fair

Over: Cottonwood Creek

Wheatland - Glendo, Platte, WY

Built 1960 Load: 40.8 t ADT: 3,174

WYO 320

Fair

Over: North Laramie River

Wheatland-Dwyer Jct., Platte, WY

Built 1986 Load: 40.8 t ADT: 562

E 8th Street

Fair

Over: Big Goose Creek

8Th Street - Sheridan, Sheridan, WY

Built 1986 Load: 40.8 t ADT: 1,334

US 191

Fair

Over: Little Sandy River

Rock Springs - Farson, Sweetwater, WY

Built 1958 Load: 40.8 t ADT: 3,089

WYO 370

Fair

Over: Bitter Creek

Rock Springs Airport Road, Sweetwater, WY

Built 1984 Load: 40.8 t ADT: 1,376

US 16

Fair

Over: Tensleep Creek

Worland - Buffalo, Washakie, WY

Built 1960 Load: 40.8 t ADT: 1,228

WYO 433

Fair

Over: Big Horn Canal

Worland North, Washakie, WY

Built 1995 Load: 40.8 t ADT: 764

WYO 450

Fair

Over: South Beaver Creek

Newcastle-Reno Jct Road, Weston, WY

Built 2000 Load: 40.8 t ADT: 679

I-90 WBL

Fair

Over: BNSF Railway

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 41.2 t ADT: 3,644

Co Cnty Rd 2

Fair

Over: North Platte River

Anderson Dairy Road, Converse, WY

Built 1996 Load: 41.4 t ADT: 716

I-25 SBL

Fair

Over: North Platte River

Casper Marginal, Natrona, WY

Built 1956 Load: 41.4 t ADT: 13,026

Cl Cnty Rd 65

Fair

Over: BNSF Railway

12 Mi. N.E. Of Reno Jct, Campbell, WY

Built 1977 Load: 41.7 t ADT: 29

Go Cnty Rd 10

Fair

Over: Bear Creek

Bear Creek Road, Goshen, WY

Built 1998 Load: 41.7 t ADT: 9

US 89

Fair

Over: Swift Creek

Afton-Thayne, Lincoln, WY

Built 1987 Load: 41.7 t ADT: 11,742

2nd Avenue

Fair

Over: Swift Creek

3 Mi Ne Of Afton, Lincoln, WY

Built 2004 Load: 41.7 t ADT: 198

Pa Cnty Rd L10D

Fair

Over: Heart Mountain Canal

7.5 Mi. W. Of Ralston, Park, WY

Built 1977 Load: 41.7 t ADT: 233

Pl Cnty Rd 269

Fair

Over: Chugwater Creek

5 Mi. S.E. Of Wheatland, Platte, WY

Built 1998 Load: 41.7 t ADT: 18

WYO 338

Fair

Over: Tongue River

Decker Road, Sheridan, WY

Built 1989 Load: 41.7 t ADT: 913

WYO 530 NBL

Fair

Over: Green River

Green River, Sweetwater, WY

Built 1953 Load: 41.7 t ADT: 9,742

US 30

Fair

Over: Blacks Fork River

Kemmerer-Granger Jct., Sweetwater, WY

Built 1998 Load: 41.7 t ADT: 1,496

River Bend Drive

Fair

Over: Smiths Fork River

Mountain View Streets, Uinta, WY

Built 1998 Load: 41.7 t ADT: 762

WYO 236

Fair

Over: Salt River

Fairview Road, Lincoln, WY

Built 1984 Load: 41.8 t ADT: 1,090

WYO 150

Fair

Over: Mill Creek

Evanston - South Road, Uinta, WY

Built 2004 Load: 42.1 t ADT: 833

US 16

Fair

Over: Nowood River

Worland - Tensleep, Washakie, WY

Built 2015 Load: 42.1 t ADT: 1,928

Co Cnty Rd 27

Fair

Over: North Platte River

7 Mi East Of Glenrock, Converse, WY

Built 2009 Load: 42.3 t ADT: 147

Wa Cnty Rd 58

Fair

Over: Otter Creek

14 Mi Se Of Tensleep, Washakie, WY

Built 2002 Load: 42.5 t ADT: 8

WYO 59

Fair

Over: Hay Creek

Reno Jct - Gillette, Campbell, WY

Built 1977 Load: 42.6 t ADT: 5,017

Fr Cnty Rd 239

Fair

Over: Big Wind River

3 Mi Se Of Dubois, Fremont, WY

Built 2002 Load: 42.6 t ADT: 198

Go Cnty Rd 25C

Fair

Over: Fort Laramie Canal

6 Miles N.W. Of Yoder, Goshen, WY

Built 1993 Load: 42.6 t ADT: 68

Go Cnty Rd 47B

Fair

Over: Cherry Creek Drainage

2.5 Mi S.W Of Torrington, Goshen, WY

Built 1993 Load: 42.6 t ADT: 68

Go Cnty Rd 124

Fair

Over: Rawhide Creek

Jay Em, Goshen, WY

Built 1993 Load: 42.6 t ADT: 31

US 26

Fair

Over: Rawhide Creek

Torrington-Lingle, Goshen, WY

Built 1997 Load: 42.6 t ADT: 5,215

WYO 173

Fair

Over: Big Horn River

4 Mi S. Of Thermopolis, Hot Springs, WY

Built 1992 Load: 42.6 t ADT: 195

US 20

Fair

Over: Wyatt Draw

Casper - Shoshoni, Natrona, WY

Built 1973 Load: 42.6 t ADT: 2,446

WYO 259

Fair

Over: East Teapot Creek

Casper-Midwest Road, Natrona, WY

Built 1999 Load: 42.6 t ADT: 3,812

WYO 34

Fair

Over: Sybille Creek

Bosler Jct - Wheatland, Platte, WY

Built 1983 Load: 42.6 t ADT: 1,287

I-90/US 14/87 Bus

Fair

Over: Little Goose Creek

Sheridan, N Main Street, Sheridan, WY

Built 1954 Load: 42.6 t ADT: 11,274

Sw Cnty Rd 23S

Fair

Over: UPRR

Wamsutter Streets, Sweetwater, WY

Built 2003 Load: 42.6 t ADT: 784

I-80 Bus

Fair

Over: Bear River

Evanston Streets, Uinta, WY

Built 1984 Load: 42.6 t ADT: 5,995

US 20

Fair

Over: Fifteen Mile Creek

P-34 Worland South, Washakie, WY

Built 2006 Load: 42.6 t ADT: 3,153

I-25 NBL

Fair

Over: Little Boxelder Creek

Douglas - Casper, Converse, WY

Built 1958 Load: 43.1 t ADT: 4,684

I-25 SBL

Fair

Over: Little Boxelder Creek

Douglas - Casper, Converse, WY

Built 1958 Load: 43.1 t ADT: 5,469

Hot Springs Blvd

Fair

Over: Warm Springs Creek

T43N R95W S36, Hot Springs, WY

Built 1989 Load: 43.1 t ADT: 164

WYO 257

Fair

Over: North Platte River

Casper Streets, Natrona, WY

Built 2013 Load: 43.1 t ADT: 1,066

WYO 30

Fair

Over: Greybull River

Basin - Jct 14/16/20, Big Horn, WY

Built 2001 Load: 43.5 t ADT: 868

WYO 51

Fair

Over: BNSF Railway

Gillette - Moorcroft, Campbell, WY

Built 1980 Load: 43.5 t ADT: 1,452

Showing 1,951-2,000 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.