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

Ln Cnty Rd 114

Good

Over: Jackknife Creek

1.5 Miles N Of Etna, Lincoln, WY

Built 2002 Load: 70.8 t ADT: 404

US 189

Good

Over: S F Cottonwood Creek

Big Pine-Daniel Jct, Sublette, WY

Built 1995 Load: 71.7 t ADT: 1,380

US 189

Good

Over: N Fork Cottonwood Creek

Big Piney-Daniel Jct, Sublette, WY

Built 1995 Load: 71.7 t ADT: 1,380

Wa Cnty Rd 20

Good

Over: Gooseberry Creek

10 Mi.S.W. Of Worland, Washakie, WY

Built 2002 Load: 71.7 t ADT: 9

US 14

Good

Over: Moss Creek

31 Mi. West Of Cody, Park, WY

Built 2000 Load: 73.3 t ADT: 2,487

Al Cnty Rd 510

Good

Over: Little Laramie River

12 Miles NE Of Centennial, Albany, WY

Built 2001 Load: 74.4 t ADT: 34

FDR 863

Good

Over: SAND CREEK DRAINAGE

T 51 N R 61 W SEC 11, Crook, WY

Built 2007 Load: 78.1 t ADT: 50

WYO 430

Good

Over: South Alkali Creek

Rock Springs-Hiawatha, Sweetwater, WY

Built 1952 Load: 97.2 t ADT: 243

MOOSE WILSON ROAD

Good

Over: KAUFMAN CREEK

5.6 MI SW MOOSE JUNCTION, Teton, WY

Built 2023 Load: 99.9 t ADT: 200

Fr Cnty Rd 523

Poor

Over: Twin Creek

15 Mi. S.E. Of Lander, Fremont, WY

Built 1932 ADT: 8

FOREST ROAD 30980

Poor

Over: MOSQUITO CREEK

8 MI. SW. OF JACKSON WY, Teton, WY

Built 1956 ADT: 50

Cb Cnty Rd 680

Poor

Over: Encampment River

4 Miles N. Of Encampment, Carbon, WY

Built 1915 Load: 4.9 t ADT: 70

NO DATA ENTERED

Poor

Over: NO DATA ENTERED

NO DATA ENTERED, Lincoln, WY

Built 2013 Load: 5.5 t ADT: 50

Cb Cnty Rd 3

Poor

Over: Third Sand Creek

11 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1965 Load: 5.9 t ADT: 82

FOUNTAIN FREIGHT R

Poor

Over: FIREHOLE RIVER

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

Built 1925 Load: 6.3 t ADT: 10

Na Cnty Rd 412

Poor

Over: Hogback Draw

3 Miles Northeast Alcova, Natrona, WY

Built 1929 Load: 6.5 t ADT: 87

Cb Cnty Rd 109

Poor

Over: Mill Creek

3 Mi Nw Of Elk Mountain, Carbon, WY

Built 1940 Load: 6.9 t ADT: 2

Texas Trail

Poor

Over: North Platte River

Saratoga, Carbon, WY

Built 1929 Load: 7.2 t ADT: 59

Ui Cnty Rd 171

Poor

Over: West Muddy Creek

5 Mi. S.W. Of Piedmont, Uinta, WY

Built 1975 Load: 7.2 t ADT: 264

US 30 Service Road

Poor

Over: Smiths Fork River

Cokeville, Lincoln, WY

Built 1908 Load: 9.1 t ADT: 26

Fr Cnty Rd 442

Poor

Over: Middle Fork Popo Agie

5 Mi Sw Of Lander, Fremont, WY

Built 1950 Load: 10.0 t ADT: 77

Jo Cnty Rd 14

Poor

Over: N F Crazy Woman Creek

13 Mi. S.W. Of Buffalo, Johnson, WY

Built 1997 Load: 10.2 t ADT: 53

Cb Cnty Rd 608

Poor

Over: Cow Creek

18 Miles N. Of Baggs, Carbon, WY

Built 1950 Load: 10.8 t ADT: 66

FOREST ROAD 10099

Poor

Over: NEW FK. LK. SPILLWAY

NO DATA ENTERED, Sublette, WY

Built 1958 Load: 11.3 t ADT: 50

Ui Cnty Rd 181

Poor

Over: Albert Creek

10 Mi. E. Of Evanston, Uinta, WY

Built 1950 Load: 11.4 t ADT: 63

Na Cnty Rd 102

Poor

Over: Badwater Creek

20 Miles N.W. Of Arminto, Natrona, WY

Built 1940 Load: 11.8 t ADT: 22

La Cnty Rd 120-1

Poor

Over: Crow Creek

2 Mi West Of Cheyenne, Laramie, WY

Built 1955 Load: 12.4 t ADT: 381

WYO 233

Poor

Over: Hams Fork River

Kemmerer - North, Lincoln, WY

Built 1952 Load: 13.4 t ADT: 443

La Cnty Rd 210-2

Poor

Over: UPRR

T14N R065W S29, Laramie, WY

Built 1934 Load: 13.7 t ADT: 638

FR 10002

Poor

Over: MURPHY CREEK

11 MI. SE. OF ALPINE, Lincoln, WY

Built 1980 Load: 14.3 t ADT: 50

FR 10002

Poor

Over: MURPHY CREEK

12 MI. SE. OF ALPINE, Lincoln, WY

Built 1980 Load: 14.3 t ADT: 50

FOREST ROAD 10299

Poor

Over: DUTCH JOE CREEK

NO DATA ENTERED, Sublette, WY

Built 1956 Load: 14.3 t ADT: 50

Co Cnty Rd 27

Poor

Over: Little Sand Creek

Appx 9 Mi E. Of Glenrock, Converse, WY

Built 1991 Load: 14.4 t ADT: 147

WYO 435

Poor

Over: Tensleep Creek

Jct Us 16 - East, Washakie, WY

Built 1929 Load: 14.7 t ADT: 164

Co Cnty Rd 17

Poor

Over: Boxelder Creek

14 Miles S.E. Of Glenrock, Converse, WY

Built 1965 Load: 15.1 t ADT: 181

Fr Cnty Rd 314

Poor

Over: Big Wind River

20 Mi Se Of Dubois, Fremont, WY

Built 1920 Load: 15.7 t ADT: 39

Co Cnty Rd 14

Poor

Over: Laprele Creek

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

Built 1965 Load: 17.0 t ADT: 42

Bull Lake Road

Poor

Over: Bull Lake Dam Spillway

36 mi W-NW of Riverton, Fremont, WY

Built 1938 Load: 17.1 t ADT: 5

Fr Cnty Rd 497

Poor

Over: Haymaker Draw

2.5 Miles Ne Of Riverton, Fremont, WY

Built 1921 Load: 17.2 t ADT: 139

WYO 314

Poor

Over: Chugwater Creek

Jct I-25 - East, Platte, WY

Built 1949 Load: 17.3 t ADT: 95

Bh Cnty Rd L55

Poor

Over: Big Horn River

6 Miles S. Of Manderson, Big Horn, WY

Built 1930 Load: 18.3 t ADT: 87

FOREST ROAD 10138

Poor

Over: GREYS RIVER

3 MI. EAST OF ALPINE WY., Lincoln, WY

Built 1954 Load: 18.8 t ADT: 600

NORTHEAST ENTRANCE

Poor

Over: YELLOWSTONE RIVER

0.64 MI. EAST OF TOWER JC, Park, WY

Built 1961 Load: 19.0 t ADT: 1,982

IRR BIA RTE 101

Poor

Over: SHOTGUN CREEK

15.3 KM SE OF MAIL CAMP, Fremont, WY

Built 1951 Load: 20.2 t ADT: 30

We Cnty Rd 1A

Poor

Over: BNSF Railway

T44N R061W S10, Weston, WY

Built 1929 Load: 20.6 t ADT: 136

WYO 211

Poor

Over: M Fork Lodgepole Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 21.2 t ADT: 135

Co Cnty Rd 17

Poor

Over: Virden Creek

22 Mi. E.S.E. Of Douglas, Converse, WY

Built 1965 Load: 21.8 t ADT: 181

I-80 Service Road

Poor

Over: North Platte River

Fort Steele Rest Area, Carbon, WY

Built 1930 Load: 22.2 t ADT: 265

FOREST ROAD 10389

Poor

Over: NORTH HORSE CREEK

22 MI. W. OF DANIEL JCT., Sublette, WY

Built 1959 Load: 23.0 t ADT: 50

Bh Cnty Rd L31

Poor

Over: Shell Creek

0.5 Miles N. Of Shell, Big Horn, WY

Built 1950 Load: 23.2 t ADT: 31

Showing 3,001-3,050 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.