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

I-80 WBL

Unknown

Over: Sw CR 47 (Riner Road)

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 6

I-80 EBL Off Ramp

Unknown

Over: I-80

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 6,720

WYO 374

Unknown

Over: I-80

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 8,494

WYO 530 SBL

Unknown

Over: UPRR / I-80 Bus

Green River, Sweetwater, WY

Built 1978 ADT: 8,087

WYO 376

Unknown

Over: WYO 430

Rock Springs Circumferent, Sweetwater, WY

Built 1980 ADT: 78

Union Pacific RR

Unknown

Over: Broadway Street

M Street Rock Springs, Sweetwater, WY

Built 1945 ADT: 3,340

Union Pacific RR

Unknown

Over: West 2nd South Street

T18N R107W S22, Sweetwater, WY

Built 1930 ADT: 5,390

Union Pacific RR

Unknown

Over: WYO 374

18N 109W S16, Sweetwater, WY

Built 1981 ADT: 1,111

Union Pacific RR

Unknown

Over: I-80

18N 109W S16, Sweetwater, WY

Built 1981 ADT: 7,705

College Drive

Unknown

Over: I-80

Rock Springs Marginal, Sweetwater, WY

Built 1989 ADT: 9,213

I-80 EBL On Ramp

Unknown

Over: I-80

Evanston - Green River, Sweetwater, WY

Built 1992 ADT: 7,229

WYO 530 NBL

Unknown

Over: UPRR / I-80 Bus

Green River, Sweetwater, WY

Built 1994 ADT: 8,087

I-80 EBL

Unknown

Over: West Green River Intg

Green River Marginal, Sweetwater, WY

Built 1995 ADT: 329

I-80 WBL

Unknown

Over: West Green River Intg

Green River Marginal, Sweetwater, WY

Built 1995 ADT: 329

I-80 EBL

Unknown

Over: US 191

Rock Springs Marginal, Sweetwater, WY

Built 2004 ADT: 12,310

I-80 WBL

Unknown

Over: US 191

Rock Springs Marginal, Sweetwater, WY

Built 2005 ADT: 12,310

I-80 EBL

Unknown

Over: East Green River Intg

Green River Marginal, Sweetwater, WY

Built 2002 ADT: 87

I-80 WBL

Unknown

Over: East Green River Intg

Green River Marginal, Sweetwater, WY

Built 2002 ADT: 87

I-80 EBL

Unknown

Over: UPRR / Killpecker Creek

Rock Springs Marginal, Sweetwater, WY

Built 2004 ADT: 865

I-80 WBL

Unknown

Over: UPRR / Killpecker Creek

Rock Springs Marginal, Sweetwater, WY

Built 2005 ADT: 865

A Street

Unknown

Over: UPRR / S. Main Street

Elk Street, Sweetwater, WY

Built 2006 ADT: 258

I-80 EBL

Unknown

Over: Dewar Drive

Rock Springs Marginal, Sweetwater, WY

Built 2007 ADT: 23,409

I-80 WBL

Unknown

Over: Dewar Drive

Rock Springs Marginal, Sweetwater, WY

Built 2007 ADT: 20,589

I-80 EBL

Unknown

Over: Swanson Drive

Rock Springs Marginal, Sweetwater, WY

Built 2007 ADT: 1,658

I-80 WBL

Unknown

Over: Swanson Drive

Rock Springs Marginal, Sweetwater, WY

Built 2008 ADT: 1,658

I-80 EBL

Unknown

Over: 9th Street

Rock Springs Marginal, Sweetwater, WY

Built 2007 ADT: 3,939

I-80 WBL

Unknown

Over: 9th Street

Rock Springs Marginal, Sweetwater, WY

Built 2008 ADT: 3,939

I-80 EBL

Unknown

Over: Rasmussen Road

Rock Springs - Rawlins, Sweetwater, WY

Built 2009 ADT: 113

I-80 WBL

Unknown

Over: Rasmussen Road

Rock Springs - Rawlins, Sweetwater, WY

Built 2010 ADT: 113

I-80 EBL

Unknown

Over: Kelly Street

Rock Springs - Rawlins, Sweetwater, WY

Built 2009 ADT: 340

I-80 WBL

Unknown

Over: Kelly Street

Rock Springs - Rawlins, Sweetwater, WY

Built 2010 ADT: 340

I-80 EBL

Unknown

Over: Wamsutter-Crooks Gap Rd

Rock Springs - Rawlins, Sweetwater, WY

Built 2009 ADT: 784

I-80 WBL

Unknown

Over: Wamsutter-Crooks Gap Rd

Rock Springs - Rawlins, Sweetwater, WY

Built 2010 ADT: 784

US 191

Unknown

Over: I-80

Rock Springs Marginal, Sweetwater, WY

Built 2014 ADT: 13,057

I-80 EBL

Unknown

Over: WYO 371

Rock Springs - Rawlins, Sweetwater, WY

Built 2019 ADT: 334

I-80 WBL

Unknown

Over: WYO 371

Rock Springs - Rawlins, Sweetwater, WY

Built 2019 ADT: 334

Interchange Road

Unknown

Over: I-80

Rock Springs Marginal, Sweetwater, WY

Built 2022 ADT: 10,663

I-80 EBL

Unknown

Over: Baxter Road

Rock Springs - Rawlins, Sweetwater, WY

Built 2022 ADT: 1,376

I-80 WBL

Unknown

Over: Baxter Road

Rock Springs - Rawlins, Sweetwater, WY

Built 2021 ADT: 1,376

I-80 EBL

Unknown

Over: Harrison Drive

Evanston Marginal, Uinta, WY

Built 1967 ADT: 6,681

I-80 WBL

Unknown

Over: Harrison Drive

Evanston Marginal, Uinta, WY

Built 1967 ADT: 6,681

I-80 EBL

Unknown

Over: Yellow Creek Road

Evanston Marginal, Uinta, WY

Built 1967 ADT: 8,689

I-80 WBL

Unknown

Over: Yellow Creek Road

Evanston Marginal, Uinta, WY

Built 1967 ADT: 7,909

I-80 EBL

Unknown

Over: Bear River Drive

Evanston Marginal, Uinta, WY

Built 1966 ADT: 131

I-80 WBL

Unknown

Over: Bear River Drive

Evanston Marginal, Uinta, WY

Built 1966 ADT: 131

I-80 EBL

Unknown

Over: I-80 Service Road

Evanston - Green River, Uinta, WY

Built 1960 ADT: 138

I-80 WBL

Unknown

Over: I-80 Service Road

Evanston - Green River, Uinta, WY

Built 1960 ADT: 71

I-80 EBL

Unknown

Over: Divide Road

Evanston - Green River, Uinta, WY

Built 1960 ADT: 71

I-80 WBL

Unknown

Over: Divide Road

Evanston - Green River, Uinta, WY

Built 1960 ADT: 71

I-80 EBL

Unknown

Over: US 189

Evanston - Green River, Uinta, WY

Built 1958 ADT: 63

Showing 501-550 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.