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 212

Fair

Over: Chicago Creek

S Dak Line - Mont Line, Crook, WY

Built 1977 Load: 31.8 t ADT: 2,333

WYO 24

Fair

Over: Belle Fourche River

Devils Tower-Hulett, Crook, WY

Built 1986 Load: 31.8 t ADT: 1,238

US 287

Fair

Over: Sweetwater River

Muddy Gap Jct-WYO 28 Jct, Fremont, WY

Built 1977 Load: 31.8 t ADT: 1,283

US 287

Fair

Over: Cottonwood Creek

Muddy Gap-Lander Road, Fremont, WY

Built 1985 Load: 31.8 t ADT: 546

Go Cnty Rd 118

Fair

Over: UPRR

Appx 28 Mi N.Torrington, Goshen, WY

Built 1984 Load: 31.8 t ADT: 68

I-25 NBL

Fair

Over: South Fork Bear Creek

Cheyenne - Chugwater, Laramie, WY

Built 1977 Load: 31.8 t ADT: 3,271

I-25 NBL

Fair

Over: North Fork Bear Creek

Cheyenne - Chugwater, Laramie, WY

Built 1977 Load: 31.8 t ADT: 3,271

I-25 SBL

Fair

Over: North Fork Bear Creek

Cheyenne - Chugwater, Laramie, WY

Built 1977 Load: 31.8 t ADT: 3,277

Morrie Avenue

Fair

Over: Crow Creek

Cheyenne Streets, Laramie, WY

Built 2006 Load: 31.8 t ADT: 6,032

US 20/26 Conn. WBL

Fair

Over: BNSF / Casper Creek

Casper, Natrona, WY

Built 1961 Load: 31.8 t ADT: 5,629

US 20/26 Conn. EBL

Fair

Over: BNSF / Casper Creek

Casper, Natrona, WY

Built 1961 Load: 31.8 t ADT: 5,821

WYO 120

Fair

Over: Cottonwood Creek

Cody-Mt State Line, Park, WY

Built 1989 Load: 31.8 t ADT: 1,324

I-25 SBL

Fair

Over: Machinery Pass

Wheatland - Glendo, Platte, WY

Built 1966 Load: 31.8 t ADT: 3,390

I-25 NBL

Fair

Over: North Laramie River

Wheatland - Glendo, Platte, WY

Built 1966 Load: 31.8 t ADT: 3,312

Front Street

Fair

Over: Canal No 2

Front Street-Wheatland, Platte, WY

Built 1982 Load: 31.8 t ADT: 387

I-90 WBL

Fair

Over: BNSF Railway

Montana Line - Sheridan, Sheridan, WY

Built 1960 Load: 31.8 t ADT: 3,758

US 14

Fair

Over: Clear Creek

Ucross - Jct WYO 59, Sheridan, WY

Built 1975 Load: 31.8 t ADT: 304

US 14

Fair

Over: BNSF Railway

Ucross Jct-Gillette, Sheridan, WY

Built 1989 Load: 31.8 t ADT: 304

US 191

Fair

Over: Green River

Daniel Jct - Hoback Jct, Sublette, WY

Built 1973 Load: 31.8 t ADT: 1,998

Sb Cnty Rd 125

Fair

Over: Boulder Canal

3 Miles N.E. Of Boulder, Sublette, WY

Built 1995 Load: 31.8 t ADT: 145

WYO 376

Fair

Over: Machinery Pass

Rock Springs Circumferent, Sweetwater, WY

Built 1980 Load: 31.8 t ADT: 1,545

FOREST ROAD 30010

Fair

Over: BLACKROCK CREEK

21 MI. E. OF MORAN WY, Teton, WY

Built 1984 Load: 31.8 t ADT: 50

I-80 EBL

Fair

Over: UPRR

Evanston - Green River, Uinta, WY

Built 1959 Load: 31.8 t ADT: 6,642

I-80 WBL

Fair

Over: UPRR

Evanston - Green River, Uinta, WY

Built 1959 Load: 31.8 t ADT: 6,946

Ui Cnty Rd 253

Fair

Over: Smiths Fork River

4 Mi. E. Of Mountain View, Uinta, WY

Built 1991 Load: 31.8 t ADT: 264

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 31.8 t ADT: 410

Cache Creek Drive

Fair

Over: Cache Creek

T41N R116W S34, Teton, WY

Built 1975 Load: 31.9 t ADT: 2,964

Cb Cnty Rd 607

Fair

Over: Little Snake River

1.5 Mi. S.W. Of Savery, Carbon, WY

Built 1986 Load: 32.0 t ADT: 81

WYO 24

Fair

Over: Belle Fourche River

Hulett, Crook, WY

Built 1973 Load: 32.0 t ADT: 1,756

Village Drive

Fair

Over: Wyoming Central Canal

South West Riverton, Fremont, WY

Built 1975 Load: 32.0 t ADT: 1,249

I-25 SBL

Fair

Over: North Fork Powder River

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 32.0 t ADT: 1,472

I-25 NBL

Fair

Over: Machinery Pass

Cheyenne - Chugwater, Laramie, WY

Built 1968 Load: 32.0 t ADT: 3,271

US 26

Fair

Over: North Platte River

Dwyer Jct - Guernsey, Platte, WY

Built 1983 Load: 32.0 t ADT: 4,794

15th Street

Fair

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 32.0 t ADT: 222

3327: URANIUM ROAD

Fair

Over: Red Creek

14 mi W of Baggs, WY, Carbon, WY

Built 2005 Load: 32.1 t ADT: 30

Go Cnty Rd 31A

Fair

Over: Cherry Creek Lateral

1 Mi. S. Of Veteran, Goshen, WY

Built 1973 Load: 32.1 t ADT: 8

I-80 EBL

Fair

Over: Crow Creek

Cheyenne Marginal, Laramie, WY

Built 1976 Load: 32.3 t ADT: 10,598

I-80 WBL

Fair

Over: Crow Creek

Cheyenne Marginal, Laramie, WY

Built 1976 Load: 32.3 t ADT: 10,705

I-25 Service Road

Fair

Over: Spring Creek

El Rancho Intg North, Platte, WY

Built 1927 Load: 32.3 t ADT: 57

Te Cnty Rd 5

Fair

Over: Box Creek

12.5 Miles E.Of Moran Jct, Teton, WY

Built 1998 Load: 32.3 t ADT: 515

Bh Cnty Rd 5

Fair

Over: Shoshone River

Byron, Big Horn, WY

Built 1977 Load: 32.4 t ADT: 146

WYO 51

Fair

Over: Stonepile Creek

Gillette, Campbell, WY

Built 1984 Load: 32.4 t ADT: 5,678

Seminoe Road

Fair

Over: North Platte River

34.2 mi N-NE of Rawlins, Carbon, WY

Built 1989 Load: 32.4 t ADT: 60

Cr Cnty Rd 222

Fair

Over: Beaver Creek

10 Mi Nw Of Alva, Crook, WY

Built 2013 Load: 32.4 t ADT: 38

WYO 220

Fair

Over: North Platte River

Casper, Natrona, WY

Built 1969 Load: 32.4 t ADT: 14,658

US 191

Fair

Over: North Beaver Creek

Daniel Jct - Hoback Jct, Sublette, WY

Built 1972 Load: 32.4 t ADT: 1,998

WYO 22

Fair

Over: Wildlife Crossing

Jackson - Wilson Road, Teton, WY

Built 2023 Load: 32.4 t ADT: 12,257

I-80 EBL and WBL

Fair

Over: Four Mile Creek

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 4,887

I-80 EBL and WBL

Fair

Over: Bellamy/Loback Ditch

Rawlins - Laramie, Albany, WY

Built 1968 Load: 32.7 t ADT: 4,887

I-80 EBL

Fair

Over: Unnamed Draw

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 6,163

Showing 1,201-1,250 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.