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

Union Pacific RR

Unknown

Over: Washington Street

Colorado Street Rawlins, Carbon, WY

Built 1951 ADT: 3,835

I-80 Bus

Unknown

Over: I-80

Rawlins Marginal, Carbon, WY

Built 1994 ADT: 6,739

I-80 EBL

Unknown

Over: West Sinclair Intg

Rawlins - Laramie, Carbon, WY

Built 2001 ADT: 72

I-80 WBL

Unknown

Over: West Sinclair Intg

Rawlins - Laramie, Carbon, WY

Built 2000 ADT: 1,927

I-80 EBL

Unknown

Over: UPRR / WYO 76

Rawlins - Laramie, Carbon, WY

Built 2001 ADT: 450

I-80 WBL

Unknown

Over: UPRR / WYO 76

Rawlins - Laramie, Carbon, WY

Built 2000 ADT: 450

I-80 EBL

Unknown

Over: US 287 (East Cedar St)

Rawlins Marginal, Carbon, WY

Built 2010 ADT: 1,060

I-80 WBL

Unknown

Over: US 287 (East Cedar St)

Rawlins Marginal, Carbon, WY

Built 2010 ADT: 7,258

I-25 NBL

Unknown

Over: I-25 Service Road

Glendo - Douglas, Converse, WY

Built 1966 ADT: 583

I-25 SBL

Unknown

Over: I-25 Service Road

Glendo - Douglas, Converse, WY

Built 1966 ADT: 583

I-25 NBL

Unknown

Over: East Douglas Intg

Douglas Marginal, Converse, WY

Built 1967 ADT: 1,958

I-25 SBL

Unknown

Over: East Douglas Intg

Douglas Marginal, Converse, WY

Built 1967 ADT: 209

I-25 NBL

Unknown

Over: Golf Course Road

Douglas Marginal, Converse, WY

Built 1967 ADT: 1,077

I-25 SBL

Unknown

Over: Golf Course Road

Douglas Marginal, Converse, WY

Built 1967 ADT: 617

I-25 NBL

Unknown

Over: Co CR 1 (Irvine Road)

Douglas Marginal, Converse, WY

Built 1967 ADT: 1,164

I-25 SBL

Unknown

Over: Co CR 1 (Irvine Road)

Douglas Marginal, Converse, WY

Built 1967 ADT: 1,164

I-25 NBL

Unknown

Over: WYO 94 (Esterbrook Rd)

Douglas Marginal, Converse, WY

Built 1966 ADT: 2,983

I-25 SBL

Unknown

Over: WYO 94 (Esterbrook Rd)

Douglas Marginal, Converse, WY

Built 1966 ADT: 2,162

I-25 NBL

Unknown

Over: Sunflower Trail

Douglas - Casper, Converse, WY

Built 1958 ADT: 181

I-25 SBL

Unknown

Over: Sunflower Trail

Douglas - Casper, Converse, WY

Built 1958 ADT: 181

I-25 SBL

Unknown

Over: Natural Bridge Road

Douglas - Casper, Converse, WY

Built 1958 ADT: 136

I-25 NBL

Unknown

Over: Natural Bridge Road

Douglas - Casper, Converse, WY

Built 1958 ADT: 136

I-25 NBL

Unknown

Over: Bixby Road

Douglas - Casper, Converse, WY

Built 1958 ADT: 98

I-25 SBL

Unknown

Over: Bixby Road

Douglas - Casper, Converse, WY

Built 1958 ADT: 98

I-25 NBL

Unknown

Over: East Glenrock Intg

Douglas - Casper, Converse, WY

Built 1967 ADT: 1,250

I-25 SBL

Unknown

Over: East Glenrock Intg

Douglas - Casper, Converse, WY

Built 1967 ADT: 1,250

I-25 NBL

Unknown

Over: WYO 90

Douglas - Casper, Converse, WY

Built 1967 ADT: 368

I-25 SBL

Unknown

Over: WYO 90

Douglas - Casper, Converse, WY

Built 1967 ADT: 368

I-25 NBL

Unknown

Over: CR 18 (Mormon Canyon Rd)

Douglas - Casper, Converse, WY

Built 1967 ADT: 181

I-25 SBL

Unknown

Over: CR 18 (Mormon Canyon Rd)

Douglas - Casper, Converse, WY

Built 1967 ADT: 181

I-25 NBL

Unknown

Over: Deer Creek Road

Douglas - Casper, Converse, WY

Built 1967 ADT: 1,569

I-25 SBL

Unknown

Over: Deer Creek Road

Douglas - Casper, Converse, WY

Built 1967 ADT: 2,051

Unnamed Road

Unknown

Over: I-25

Douglas - Casper, Converse, WY

Built 1966 ADT: 4,702

I25/US20-26-87 Bus

Unknown

Over: I-25

Douglas Marginal, Converse, WY

Built 1966 ADT: 3,618

BNSF Railway

Unknown

Over: Unnamed Road

T34N R75W S33, Converse, WY

Built 1930 ADT: 136

I-25 Service Road

Unknown

Over: I-25

Glendo - Douglas, Converse, WY

Built 1971 ADT: 3,318

I-25 NBL

Unknown

Over: BNSF / Irvine Road

Glendo - Douglas, Converse, WY

Built 1971 ADT: 207

I-25 SBL

Unknown

Over: BNSF / Irvine Road

Glendo - Douglas, Converse, WY

Built 1971 ADT: 207

BNSF Railway

Unknown

Over: US 18 / 20

Orin Jct - Lusk, Converse, WY

Built 1979 ADT: 2,072

BNSF Railway

Unknown

Over: WYO 59

Douglas - Reno Jct, Converse, WY

Built 1979 ADT: 2,840

BNSF Railway

Unknown

Over: Co CR 52 (E Antelope Rd)

T32N R069W S10, Converse, WY

Built 1978 ADT: 1,429

BNSF Railway

Unknown

Over: Co CR 32 (Highland Loop)

T35N R070W S04, Converse, WY

Built 1979 ADT: 260

BNSF Railway

Unknown

Over: East Clay St

Douglas, Converse, WY

Built 1923 ADT: 1,315

Union Pacific RR

Unknown

Over: Co CR 32 (Highland Loop)

22 Miles Nne Of Douglas, Converse, WY

Built 1992 ADT: 260

BNSF Railway

Unknown

Over: Co CR 32 (Highland Loop)

T35N R070W S04, Converse, WY

Built 1999 ADT: 260

BNSF Railway

Unknown

Over: US 18 / 20

Orin Jct - Lusk, Converse, WY

Built 2008 ADT: 2,072

I-25 NBL

Unknown

Over: Cherokee Trail

Douglas - Casper, Converse, WY

Built 2015 ADT: 260

I-25 SBL

Unknown

Over: WYO 96

Douglas - Casper, Converse, WY

Built 1958 ADT: 260

BNSF Railway

Unknown

Over: Co CR 27 (Tank Farm Rd)

8 Mi East Of Glenrock, Converse, WY

Built 2010 ADT: 147

I-90 EBL

Unknown

Over: Cr CR 68 (D Road)

Gillette - Moorcroft, Crook, WY

Built 1969 ADT: 380

Showing 101-150 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.