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: US 189

Evanston - Green River, Uinta, WY

Built 1958 ADT: 1,134

I-80 EBL

Unknown

Over: Piedmont Road

Evanston - Green River, Uinta, WY

Built 1959 ADT: 77

I-80 WBL

Unknown

Over: Leroy Road

Evanston - Green River, Uinta, WY

Built 1959 ADT: 77

I-80 EBL

Unknown

Over: Ui CR 202(Bigelow Bench)

Evanston - Green River, Uinta, WY

Built 1959 ADT: 167

I-80 WBL

Unknown

Over: Ui CR 202(Bigelow Bench)

Evanston - Green River, Uinta, WY

Built 1959 ADT: 167

I-80 EBL

Unknown

Over: I-80 Bus

Evanston - Green River, Uinta, WY

Built 1969 ADT: 2,772

I-80 WBL

Unknown

Over: I-80 Bus

Evanston - Green River, Uinta, WY

Built 1969 ADT: 2,772

I-80 EBL

Unknown

Over: Ui County Road 221

Evanston - Green River, Uinta, WY

Built 1969 ADT: 71

I-80 WBL

Unknown

Over: Ui County Road 223

Evanston - Green River, Uinta, WY

Built 1969 ADT: 71

I-80 EBL

Unknown

Over: WYO 414

Evanston - Green River, Uinta, WY

Built 1968 ADT: 1,315

I-80 WBL

Unknown

Over: WYO 412

Evanston - Green River, Uinta, WY

Built 1968 ADT: 503

I-80 EBL

Unknown

Over: Ui County Road 233

Evanston - Green River, Uinta, WY

Built 1968 ADT: 41

I-80 WBL

Unknown

Over: Ui County Road 233

Evanston - Green River, Uinta, WY

Built 1968 ADT: 41

I-80 EBL

Unknown

Over: I-80 Bus / CR 237

Evanston - Green River, Uinta, WY

Built 1968 ADT: 755

I-80 WBL

Unknown

Over: I-80 Bus / CR 237

Evanston - Green River, Uinta, WY

Built 1968 ADT: 87

I-80 EBL

Unknown

Over: Church Butte Rd

Evanston - Green River, Uinta, WY

Built 1962 ADT: 71

I-80 WBL

Unknown

Over: Church Butte Rd

Evanston - Green River, Uinta, WY

Built 1962 ADT: 8

I-80 EBL

Unknown

Over: I-80 Service Road

Evanston - Green River, Uinta, WY

Built 1962 ADT: 26

I-80 WBL

Unknown

Over: I-80 Service Road

Evanston - Green River, Uinta, WY

Built 1962 ADT: 26

Union Pacific RR

Unknown

Over: Bear River Drive

Evanston, Uinta, WY

Built 1937 ADT: 1,364

Union Pacific RR

Unknown

Over: Ui CR 180 (Evanston Rd)

T15N R118W S24, Uinta, WY

Built 1955 ADT: 71

I-80 EBL

Unknown

Over: WYO 150

Evanston Marginal, Uinta, WY

Built 1986 ADT: 13,179

I-80 WBL

Unknown

Over: WYO 150

Evanston Marginal, Uinta, WY

Built 1986 ADT: 13,179

I-80 EBL

Unknown

Over: WYO 413

Evanston - Green River, Uinta, WY

Built 2017 ADT: 707

I-80 WBL

Unknown

Over: WYO 413

Evanston - Green River, Uinta, WY

Built 2018 ADT: 871

FSR 33

Fair

Over: CRAZY WOMAN CREEK

4.5 MI EAST OF HWY 16, Johnson, WY

Built 1961 ADT: 20

FOREST ROAD 10072

Fair

Over: SMITHS FORK

8 MI. E. OF HIGHWAY 89, Lincoln, WY

Built 1996 ADT: 50

FOREST ROAD 10002

Fair

Over: GREYS RIVER

16 MI. SE. OF ALPINE WY., Lincoln, WY

Built 1982 ADT: 50

FOREST ROAD 10002

Fair

Over: MURPHY CREEK

NO DATA ENTERED, Lincoln, WY

Built 1980 ADT: 50

FOREST ROAD 10002

Fair

Over: MURPHY CREEK

NO DATA ENTERED, Lincoln, WY

Built 1980 ADT: 50

FOREST ROAD 10211

Fair

Over: SWIFT CREEK

T32N, R118W, S31, Lincoln, WY

Built 1990 ADT: 50

4113: DUTCH JOE RO

Fair

Over: Squaw Creek

34 mi NE of Farson, WY, Sublette, WY

Built 1977 ADT: 10

370650

Fair

Over: KENDALL SPRING

T38N, R110W, S11, Sublette, WY

Built 1995 ADT: 50

30220

Fair

Over: BLACK ROCK CREEK

T45N, R112W, S31, Teton, WY

Built 1982 ADT: 50

FOREST ROAD 30400

Fair

Over: HORSETAIL CREEK

17 MI. NE. OF JACKSON, Teton, WY

Built 1997 ADT: 450

NO DATA ENTERED

Fair

Over: TRIBUTARY TO TETON CREEK

NO DATA ENTERED, Teton, WY

Built 2006 ADT: 50

Ui Cnty Rd 261

Fair

Over: Blacks Fork River

2 Mi. W. Nw Of Robertson, Uinta, WY

Built 1984 Load: 2.9 t ADT: 72

IRR BIA RTE 280

Fair

Over: BIG WIND RIVER

1KM N US 26/WILDERNESS RD, Fremont, WY

Built 1920 Load: 3.9 t ADT: 20

Ui Cnty Rd 167

Fair

Over: La Chapelle Creek

19 Mi. S.E. Of Evanston, Uinta, WY

Built 1981 Load: 3.9 t ADT: 44

Sh Cnty Rd 40

Fair

Over: Wild Horse Creek

1 Miles S.E. Of Arvada, Sheridan, WY

Built 1920 Load: 4.3 t ADT: 8

FDR

Fair

Over: N. FORK SHOSHONE

28 MILES W OF CODY, WY, Park, WY

Built 1982 Load: 5.2 t ADT: 50

Lake Side Drive

Fair

Over: Guernsey Dam Spillway

1.8 miles NW of Guernsey, Platte, WY

Built 1927 Load: 5.4 t ADT: 100

Cb Cnty Rd 97

Fair

Over: Little Medicine Bow Rvr

T28N R077W S30, Carbon, WY

Built 1950 Load: 5.9 t ADT: 23

Cb Cnty Rd 402

Fair

Over: Wagonhound Creek

5 Mi. N.W. Of Arlington, Carbon, WY

Built 1980 Load: 5.9 t ADT: 59

Cb Cnty Rd 353

Fair

Over: N Fork Encampment River

1 Mi. S.W. Of Encampment, Carbon, WY

Built 1960 Load: 6.2 t ADT: 95

Ui Cnty Rd 295

Fair

Over: Beaver Creek Ditch

1.5 Mi. E. Lonetree, Uinta, WY

Built 1984 Load: 6.2 t ADT: 54

FIREHOLE LAKE DRIV

Fair

Over: THERMAL AREA DRAINAGE

10 +/- MI. SOUTH OF MADIS, Teton, WY

Built 1935 Load: 6.3 t ADT: 1,500

LITTLE SANDY REC S

Fair

Over: Little Sandy Creek

8 mi NE of Farson, WY, Sweetwater, WY

Built 1920 Load: 7.1 t ADT: 25

Co Cnty Rd 24

Fair

Over: Campbell Creek

30 Miles S.W. Of Douglas, Converse, WY

Built 1976 Load: 7.2 t ADT: 52

Jo Cnty Rd 78

Fair

Over: Red Wall Draw

6 Miles N. Of Barnum, Johnson, WY

Built 1930 Load: 7.3 t ADT: 13

Showing 551-600 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.