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

1426: RED HOLE ROA

Fair

Over: KIRBY CREEK

14 Mi NE Thermoposis, WY, Hot Springs, WY

Built 2000 Load: 34.0 t ADT: 75

I-80 EBL

Fair

Over: UPRR

Laramie - Cheyenne, Laramie, WY

Built 1959 Load: 34.2 t ADT: 6,781

I-80 WBL

Fair

Over: UPRR

Laramie - Cheyenne, Laramie, WY

Built 1959 Load: 34.2 t ADT: 6,892

US 30

Fair

Over: UPRR / Hams Fork River

Kemmerer - Granger Jct, Lincoln, WY

Built 1955 Load: 34.2 t ADT: 2,075

Sh Cnty Rd 197

Fair

Over: Clear Creek

Double Crossing Road, Sheridan, WY

Built 1997 Load: 34.2 t ADT: 111

US 191

Fair

Over: Hay Gulch

Daniel Jct - Hoback Jct, Sublette, WY

Built 1972 Load: 34.2 t ADT: 1,998

US 14

Fair

Over: Shoshone River

Yellowstone Park - Cody, Park, WY

Built 1960 Load: 34.3 t ADT: 2,406

US 30

Fair

Over: Laramie River

Medicine Bow - Bosler Jct, Albany, WY

Built 1954 Load: 34.5 t ADT: 1,088

Al Cnty Rd 37

Fair

Over: Laramie River

12 Miles West Of Laramie, Albany, WY

Built 1971 Load: 34.5 t ADT: 47

US 16

Fair

Over: Elk Creek

Worland - Basin, Big Horn, WY

Built 1992 Load: 34.5 t ADT: 2,122

WYO 450

Fair

Over: Machinery Pass

Newcastle - Jct WYO 59, Campbell, WY

Built 1977 Load: 34.5 t ADT: 1,476

I-80 EBL

Fair

Over: UPRR

Rawlins Marginal, Carbon, WY

Built 1963 Load: 34.5 t ADT: 6,494

US 287

Fair

Over: Muddy Creek

Rawlins - Muddy Gap Jct, Carbon, WY

Built 1959 Load: 34.5 t ADT: 2,395

N 4th Street

Fair

Over: Antelope Creek

Douglas, Converse, WY

Built 1972 Load: 34.5 t ADT: 2,146

WYO 59

Fair

Over: BNSF Railway

Douglas Bypass, Converse, WY

Built 1988 Load: 34.5 t ADT: 6,281

WYO 93

Fair

Over: North Platte River

Orpha Road, Converse, WY

Built 1989 Load: 34.5 t ADT: 610

WYO 95

Fair

Over: North Platte River

Glenrock-Ross, Converse, WY

Built 1994 Load: 34.5 t ADT: 1,551

WYO 24

Fair

Over: South Fork Hay Creek

Hulett-South Dakota Line, Crook, WY

Built 1984 Load: 34.5 t ADT: 789

WYO 24

Fair

Over: Lytle Creek

Devils Tower Jct-Hulett, Crook, WY

Built 1984 Load: 34.5 t ADT: 1,238

I-90 Service Road

Fair

Over: Sand Creek

Sundance - S Dakota Line, Crook, WY

Built 1988 Load: 34.5 t ADT: 688

US 26

Fair

Over: Big Wind River

Diversion D Jt - Riverton, Fremont, WY

Built 1959 Load: 34.5 t ADT: 1,043

US 26

Fair

Over: Wind River

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 34.5 t ADT: 4,296

US 26

Fair

Over: Big Dry Creek

Dubois-Diversion Dam Jct., Fremont, WY

Built 1987 Load: 34.5 t ADT: 1,554

US 26

Fair

Over: Cottonwood Creek

Guernsey - Lingle, Goshen, WY

Built 1956 Load: 34.5 t ADT: 2,374

WYO 120

Fair

Over: Owl Creek

Thermopolis-Meeteetse, Hot Springs, WY

Built 1986 Load: 34.5 t ADT: 1,780

WYO 120

Fair

Over: Gooseberry Creek

Thermopolis-Meeteese, Hot Springs, WY

Built 1991 Load: 34.5 t ADT: 1,423

Jo Cnty Rd 204B

Fair

Over: Powder River

34 Miles S.E. Of Buffalo, Johnson, WY

Built 1983 Load: 34.5 t ADT: 31

Jo Cnty Rd 51

Fair

Over: Murphy Creek

13 Miles S. Of Kaycee, Johnson, WY

Built 1983 Load: 34.5 t ADT: 53

Jo Cnty Rd 266

Fair

Over: North Fork Powder River

1/4 Mile W. Of Mayowrth, Johnson, WY

Built 1992 Load: 34.5 t ADT: 97

La Cnty Rd 140-1

Fair

Over: Crow Creek

Jct I-80 - South, Laramie, WY

Built 1960 Load: 34.5 t ADT: 475

I-180 SBL

Fair

Over: UPRR

Cheyenne, Central Ave, Laramie, WY

Built 1984 Load: 34.5 t ADT: 7,258

La Cnty Rd 126-1

Fair

Over: Allison Draw

Cheyenne Streets, Laramie, WY

Built 1996 Load: 34.5 t ADT: 1,859

I-25 SBL

Fair

Over: Machinery Pass

Casper - Kaycee, Natrona, WY

Built 1980 Load: 34.5 t ADT: 1,464

Na Cnty Rd 101

Fair

Over: Badwater Creek

23 Miles N.W. Of Waltman, Natrona, WY

Built 1984 Load: 34.5 t ADT: 12

US 18

Fair

Over: Old Woman Creek

Lusk - Newcastle, Niobrara, WY

Built 1987 Load: 34.5 t ADT: 2,115

US 14

Fair

Over: Sage Creek

Cody - Jct WYO 310, Park, WY

Built 1975 Load: 34.5 t ADT: 1,369

WYO 120

Fair

Over: Clarks Fork River

Cody - Montana Line, Park, WY

Built 1959 Load: 34.5 t ADT: 1,573

WYO 120

Fair

Over: Clarks Fork River

Cody - Montana Line, Park, WY

Built 1959 Load: 34.5 t ADT: 1,573

Pa Cnty Rd 6QS

Fair

Over: S Fork Shoshone River

12 Mi. S.W. Of Cody, Park, WY

Built 1979 Load: 34.5 t ADT: 90

Pa Cnty Rd 4EU

Fair

Over: Greybull River

4 Miles S.W. Of Meeteetse, Park, WY

Built 1988 Load: 34.5 t ADT: 67

WYO 120

Fair

Over: Shoshone River

Cody-Montana State Line, Park, WY

Built 1991 Load: 34.5 t ADT: 3,654

I-25 Service Road

Fair

Over: Rock Creek

Wheatland South, Platte, WY

Built 1948 Load: 34.5 t ADT: 151

US 26

Fair

Over: BNSF Railway

Guernsey - Lingle, Platte, WY

Built 1962 Load: 34.5 t ADT: 2,439

Pl Cnty Rd 81

Fair

Over: Iowa Lateral Ditch

5.5 Mi. S.W. Of Wheatland, Platte, WY

Built 1970 Load: 34.5 t ADT: 131

Pl Cnty Rd 204

Fair

Over: Iowa Lateral Ditch

3 Miles West Of Wheatland, Platte, WY

Built 1970 Load: 34.5 t ADT: 14

8th Street

Fair

Over: Soldier Creek

Downer Addt Road Sheridan, Sheridan, WY

Built 1970 Load: 34.5 t ADT: 1,125

Sh Cnty Rd 84

Fair

Over: Dutch Creek

7 Miles East Of Sheridan, Sheridan, WY

Built 1950 Load: 34.5 t ADT: 37

US 14

Fair

Over: Lone Tree Creek

Sheridan Gillette, Sheridan, WY

Built 1987 Load: 34.5 t ADT: 304

Broadway Street

Fair

Over: Little Goose Creek

Broadway St. - Sheridan, Sheridan, WY

Built 1986 Load: 34.5 t ADT: 4,360

Sh Cnty Rd 38

Fair

Over: Powder River

0.3 Miles South Of Arvada, Sheridan, WY

Built 1990 Load: 34.5 t ADT: 13

Showing 1,651-1,700 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.