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

Wa Cnty Rd R10

Fair

Over: Lower Hanover Canal

5 Mi. N.E. Of Worland, Washakie, WY

Built 1973 Load: 18.0 t ADT: 279

WYO 32

Fair

Over: Coon Creek

Lovell - Emblem, Big Horn, WY

Built 1954 Load: 18.3 t ADT: 346

Bh Cnty Rd R52

Fair

Over: Medicine Lodge Creek

Medicine Lodge State Park, Big Horn, WY

Built 1980 Load: 18.3 t ADT: 227

La Cnty Rd 236-1

Fair

Over: Little Horse Creek

T18N R062W S17, Laramie, WY

Built 1920 Load: 18.3 t ADT: 28

I-80 Bus

Fair

Over: Blacks Fork Canal

Fort Bridger - Lyman, Uinta, WY

Built 1961 Load: 18.3 t ADT: 7,365

FOREST ROAD 10001

Fair

Over: GREYS RIVER

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

Built 1963 Load: 18.5 t ADT: 50

WYO 30

Fair

Over: McKenney Creek

Basin - Jct US 14/16/20, Big Horn, WY

Built 1960 Load: 18.6 t ADT: 933

NFSR 633

Fair

Over: HORSESHOE CREEK

6 MI N OF HARRIS PARK, Albany, WY

Built 1956 Load: 18.8 t ADT: 50

FDR

Fair

Over: WILLOW CREEK

NO DATA ENTERED, Park, WY

Built 1981 Load: 18.8 t ADT: 50

U.S. ROUTE 89

Fair

Over: ARIZONA CREEK

5 miles north of Colter B, Teton, WY

Built 1935 Load: 19.0 t ADT: 5,000

WYO 194

Fair

Over: Prairie Dog Creek Ditch

Story - West, Sheridan, WY

Built 1962 Load: 19.1 t ADT: 1,497

FOREST ROAD 30519

Fair

Over: GRANITE CREEK

NO DATA ENTERED, Teton, WY

Built 2003 Load: 19.1 t ADT: 450

WYO 51

Fair

Over: Donkey Creek

Gillette - Moorcroft, Campbell, WY

Built 1956 Load: 19.2 t ADT: 1,323

US 310

Fair

Over: Sage Creek

Deaver - Mont Line, Park, WY

Built 1949 Load: 19.2 t ADT: 1,619

WYO 313

Fair

Over: Chugwater Creek

Chugwater, Platte, WY

Built 1954 Load: 19.2 t ADT: 303

Co Rd 45S

Fair

Over: Cow Creek

46 Miles N.E. Of Douglas, Converse, WY

Built 1977 Load: 19.6 t ADT: 260

US 14

Fair

Over: S Fork Sundance Creek

Sundance - Jct I-90, Crook, WY

Built 1954 Load: 19.6 t ADT: 3,417

NFSR 512

Fair

Over: DOUGLAS CREEK

6.9 MI. NW OF FOXPARK, WY, Albany, WY

Built 1956 Load: 19.8 t ADT: 78

FDR

Fair

Over: NORTH FORK SHOSHONE

NO DATA ENTERED, Park, WY

Built 1970 Load: 19.8 t ADT: 50

Go Cnty Rd 78A

Fair

Over: Gid Canal Flood Control

3 Mi S W Of Lingle, Goshen, WY

Built 1950 Load: 20.0 t ADT: 68

WYO 194

Fair

Over: Prairie Dog Creek Ditch

Story - West, Sheridan, WY

Built 1962 Load: 20.0 t ADT: 628

I-80 EBL and WBL

Fair

Over: Unnamed Draw

Laramie - Cheyenne, Albany, WY

Built 1946 Load: 20.2 t ADT: 6,860

Ames Avenue

Fair

Over: Unnamed Draw

T13N R066W S06, Laramie, WY

Built 1935 Load: 20.2 t ADT: 7,502

Na Cnty Rd 209

Fair

Over: M Casper Creek

0.30 Miles S. Of Natrona, Natrona, WY

Built 1970 Load: 20.2 t ADT: 23

GF1 (Ltl Horn Acc)

Fair

Over: Little Big Horn River

T58N R089W S17, Sheridan, WY

Built 1945 Load: 20.2 t ADT: 111

US 189

Fair

Over: North Piney Creek

Kemmerer - Daniel Jct, Sublette, WY

Built 1960 Load: 20.2 t ADT: 5,164

WYO 374

Fair

Over: Unnamed Draw

Jct I-80 - Green River, Sweetwater, WY

Built 1942 Load: 20.2 t ADT: 2,369

FDR

Fair

Over: BURROUGHS CREEK

NO DATA ENTERED, Fremont, WY

Built 1956 Load: 20.4 t ADT: 50

WYO 31

Fair

Over: Alkali Creek

Manderson - Hyattville, Big Horn, WY

Built 1948 Load: 20.6 t ADT: 216

US 189

Fair

Over: South Piney Creek

Kemmerer - Daniel Jct, Sublette, WY

Built 1960 Load: 20.6 t ADT: 2,134

US 16

Fair

Over: Oil Creek

Upton - Newcastle, Weston, WY

Built 1954 Load: 20.6 t ADT: 1,390

Al Cnty Rd 44A

Fair

Over: Pioneer Canal

2 Miles N. Of Harmony, Albany, WY

Built 1958 Load: 20.7 t ADT: 143

Access Road

Fair

Over: Boysen Dam Spillway

15.9 mi S. of Thermopolis, Fremont, WY

Built 1948 Load: 20.7 t ADT: 5

FDR 33

Fair

Over: CRAZY WOMAN CREEK

4.1 MI EAST OF HWY 16, Johnson, WY

Built 1954 Load: 20.7 t ADT: 5

WYO 31

Fair

Over: Nowood River

Manderson - Hyattville, Big Horn, WY

Built 1952 Load: 20.9 t ADT: 486

WYO 32

Fair

Over: Foster Gulch

Lovell - Emblem, Big Horn, WY

Built 1954 Load: 20.9 t ADT: 346

Bh Cnty Rd L42C

Fair

Over: Big Horn River

Basin, Big Horn, WY

Built 1958 Load: 20.9 t ADT: 207

Co Cnty Rd 17

Fair

Over: Hunton Creek

10 Mi S.E. Of Glenrock, Converse, WY

Built 1955 Load: 20.9 t ADT: 181

Co Cnty Rd 46

Fair

Over: Hage Draw

T33N R067W S18, Converse, WY

Built 1983 Load: 20.9 t ADT: 56

WYO 51

Fair

Over: Well Creek

Gillette - Moorcroft, Crook, WY

Built 1956 Load: 20.9 t ADT: 1,323

WYO 51

Fair

Over: Donkey Creek

Gillette - Moorcroft, Crook, WY

Built 1956 Load: 20.9 t ADT: 1,323

Cr Cnty Rd 268

Fair

Over: Inyan Kara Creek

15 Mi. S.W. Of Sundance, Crook, WY

Built 1960 Load: 20.9 t ADT: 74

Fr Cnty Rd 442

Fair

Over: Hornecker Creek

5 Mi Sw Of Lander, Fremont, WY

Built 1950 Load: 20.9 t ADT: 77

WYO 320

Fair

Over: Wheatland Creek

Wheatland - Jct Us 26, Platte, WY

Built 1956 Load: 20.9 t ADT: 874

TETON PARK ROAD

Fair

Over: COTTONWOOD CREEK

3 miles north of Moose, W, Teton, WY

Built 1963 Load: 20.9 t ADT: 2,941

WYO 32

Fair

Over: Sand Creek

Lovell - Emblem, Big Horn, WY

Built 1954 Load: 21.2 t ADT: 346

I-80 WBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1969 Load: 21.2 t ADT: 5,905

WYO 192

Fair

Over: Carpenter Creek

Kaycee - Jct WYO 387, Johnson, WY

Built 1956 Load: 21.2 t ADT: 116

WYO 434

Fair

Over: Otter Creek

Tensleep - Big Trails, Washakie, WY

Built 1956 Load: 21.2 t ADT: 94

2302: HUDSON-ATLAN

Fair

Over: STRAWBERRY CREEK

12 Mi E S. Pass City, WY, Fremont, WY

Built 2005 Load: 21.4 t ADT: 40

Showing 651-700 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.