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 191

Good

Over: Boulder Creek

Farson - Pinedale, Sublette, WY

Built 1956 Load: 19.6 t ADT: 3,598

WYO 92

Good

Over: Horse Creek

Jct Us 85 - Nebraska Line, Goshen, WY

Built 1957 Load: 20.0 t ADT: 520

I-80 Bus

Good

Over: Groshon Creek

I-80 Jct - Fort Bridger, Uinta, WY

Built 1961 Load: 20.2 t ADT: 4,215

WYO 319

Good

Over: Indian Creek

Glendo - Orin Jct, Converse, WY

Built 1949 Load: 20.6 t ADT: 295

Ni Cnty Rd 64

Good

Over: South Indian Creek

8 Miles E. Of Hat Creek, Niobrara, WY

Built 1958 Load: 20.6 t ADT: 40

Al Cnty Rd 422

Good

Over: Pioneer Canal

7 Mi. N.E. Of Harmony, Albany, WY

Built 1958 Load: 20.7 t ADT: 341

FDR

Good

Over: SUNLIGHT CREEK

31 MILES NW OF CODY, WY, Park, WY

Built 1952 Load: 20.9 t ADT: 50

FDR

Good

Over: WIND RIVER

15 MILES WEST OF DUBOIS, Fremont, WY

Built 1949 Load: 21.4 t ADT: 50

Scottsbluff CoRd 1

Good

Over: Fort Laramie Canal

7S N92 Wyoming SL, Goshen, WY

Built 1970 Load: 21.8 t ADT: 168

Sb Cnty Rd 154

Good

Over: Highland Canal

1.4 Mi Ne Of Pinedale, Sublette, WY

Built 2013 Load: 21.8 t ADT: 886

US 20/26/87 EBL

Good

Over: Elkhorn Creek

East Yellowstone - Casper, Natrona, WY

Built 1957 Load: 21.9 t ADT: 3,035

NFSR 500

Good

Over: NORTH MULLEN CREEK

7.8 MI. E OF FRENCH CR CG, Carbon, WY

Built 1953 Load: 22.0 t ADT: 23

WYO 211

Good

Over: Horse Creek

Cheyenne - Chugwater, Laramie, WY

Built 1958 Load: 22.2 t ADT: 135

WYO 214

Good

Over: Unnamed Draw

Jct I-80 - Carpenter, Laramie, WY

Built 1950 Load: 22.2 t ADT: 1,185

NFSR 101

Good

Over: N. FORK ROCK CREEK

13.25 MI. NW OF SH 130, Carbon, WY

Built 1957 Load: 22.4 t ADT: 32

FDR

Good

Over: HORSE CREEK

NO DATA ENTERED, Fremont, WY

Built 1965 Load: 22.4 t ADT: 50

Jo Cnty Rd 1

Good

Over: North Rock Creek

15 Mi Nw Of Buffalo, Johnson, WY

Built 2010 Load: 22.5 t ADT: 165

Jo Cnty Rd 1

Good

Over: South Rock Creek

14 Mi Nw Of Buffalo, Johnson, WY

Built 2010 Load: 22.5 t ADT: 165

Ui Cnty Rd 271

Good

Over: Pine Grove Canal

5 Mi. W. Of Robertson, Uinta, WY

Built 1978 Load: 22.5 t ADT: 264

NFSR 338

Good

Over: DOUGLAS CREEK

1.2 MI. NE OF ROB ROY CG, Albany, WY

Built 1953 Load: 22.7 t ADT: 84

W 4-J Road

Good

Over: Donkey Creek

Four J Road Gillette, Campbell, WY

Built 1983 Load: 22.7 t ADT: 3,271

Cr Cnty Rd 24

Good

Over: Arch Creek

9 Miles north of Upton, Crook, WY

Built 2023 Load: 22.7 t ADT: 38

FOREST ROAD 370766

Good

Over: FALL CREEK

T34N, R107W, S31, Sublette, WY

Built 2003 Load: 22.7 t ADT: 50

FDR 30500

Good

Over: LITTLE GRANITE CREEK

T39N, R113W, S 34, Teton, WY

Built 2000 Load: 22.7 t ADT: 450

US 16

Good

Over: Canyon Creek

Worland - Buffalo, Washakie, WY

Built 1954 Load: 22.7 t ADT: 1,228

WYO 345

Good

Over: Six Mile Creek

Montana Line - Sheridan, Sheridan, WY

Built 1955 Load: 22.9 t ADT: 745

WYO 345

Good

Over: Early Creek

Montana Line - Sheridan, Sheridan, WY

Built 1955 Load: 22.9 t ADT: 745

FOREST ROAD 10138

Good

Over: LABARGE CREEK

NO DATA ENTERED, Lincoln, WY

Built 2002 Load: 23.0 t ADT: 50

WYO 353

Good

Over: Silver Creek

Boulder - Big Sandy, Sublette, WY

Built 1957 Load: 23.2 t ADT: 96

US 16

Good

Over: Tensleep Branch Creek

Worland - Buffalo, Washakie, WY

Built 1953 Load: 23.2 t ADT: 1,044

NFSR 330

Good

Over: N. FORK LITTLE LARAMIE

0.09 MI. W OF NFSR 101, Albany, WY

Built 1975 Load: 23.3 t ADT: 38

FOREST ROAD 10062

Good

Over: HAMS FORK

T26N, R117W, SECTION 9, Lincoln, WY

Built 1997 Load: 23.3 t ADT: 100

ROAD

Good

Over: SOUTH BOONE CREEK

NO DATA ENTERED, Teton, WY

Built 1974 Load: 23.3 t ADT: 24

I-90 WBL

Good

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 23.5 t ADT: 1,833

US 20/26/87 WBL

Good

Over: Elkhorn Creek

East Yellowstone - Casper, Natrona, WY

Built 1957 Load: 23.5 t ADT: 2,396

GOLF COURSE ROAD

Good

Over: AFWYGHLN02116

At southeast corner of th, Laramie, WY

Built 2002 Load: 23.6 t

Te Cnty Rd 3

Good

Over: Fish Creek

Wilson117W S22, Teton, WY

Built 1965 Load: 23.6 t ADT: 1,015

FSR 446

Good

Over: KITTY CREEK

NO DATA ENTERED, Park, WY

Built 2007 Load: 23.7 t ADT: 50

WYO 211

Good

Over: Dry Draw

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 23.9 t ADT: 135

La Cnty Rd 143-2

Good

Over: Antelope Draw

T16N R063W S31, Laramie, WY

Built 1960 Load: 23.9 t ADT: 278

WYO 345

Good

Over: Slater Creek

Montana Line - Sheridan, Sheridan, WY

Built 1955 Load: 23.9 t ADT: 745

Jo Cnty Rd 11A

Good

Over: Rock Creek

6 Mi Nw Of Buffalo, Johnson, WY

Built 2013 Load: 24.3 t ADT: 69

WYO 433

Good

Over: Five Mile Creek

Worland - Manderson, Big Horn, WY

Built 1961 Load: 24.5 t ADT: 764

I-90 WBL

Good

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1961 Load: 24.5 t ADT: 1,833

I-90 Service Road

Good

Over: Rocky Ford Creek

Sundance - S Dakota Line, Crook, WY

Built 1956 Load: 24.5 t ADT: 270

WYO 190

Good

Over: Cottonwood Creek

Kaycee-Barnum Road, Johnson, WY

Built 2007 Load: 24.5 t ADT: 216

WYO 190

Good

Over: Alkali Creek

Kaycee-Barnum Road, Johnson, WY

Built 2007 Load: 24.5 t ADT: 216

I-25 NBL

Good

Over: South Bear Creek

Wheatland - Glendo, Platte, WY

Built 1961 Load: 24.5 t ADT: 3,471

LONE STAR GEYSER R

Good

Over: FIREHOLE RIVER

14.9 MI. NW OF WEST THUMB, Teton, WY

Built 1915 Load: 24.5 t ADT: 250

NFSR 100

Good

Over: MEDICINE BOW RIVER

19.4 MI. NE OF SH 130, Carbon, WY

Built 1952 Load: 24.6 t ADT: 68

Showing 2,201-2,250 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.