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

WYO 233

Fair

Over: Hams Fork River

Kemmerer North, Lincoln, WY

Built 1992 Load: 37.2 t ADT: 611

I-25 NBL

Fair

Over: Unnamed Draw

Chugwater - Wheatland, Platte, WY

Built 1958 Load: 37.2 t ADT: 3,098

I-25 SBL

Fair

Over: Unnamed Draw

Chugwater - Wheatland, Platte, WY

Built 1958 Load: 37.2 t ADT: 3,173

Pl Cnty Rd 109S

Fair

Over: North Platte River

T26N R066W S02, Platte, WY

Built 1964 Load: 37.2 t ADT: 74

Sh Cnty Rd 106

Fair

Over: Tongue River

Sheridan-Ranchester, Sheridan, WY

Built 1960 Load: 37.2 t ADT: 32

Sh Cnty Rd 87

Fair

Over: Big Goose Creek

7 Mi S.W Of Sheridan, Sheridan, WY

Built 1988 Load: 37.2 t ADT: 326

EAST ENTRANCE ROAD

Fair

Over: YELLOWSTONE RIVER

0.3 MI. EAST OF LAKE JCT., Teton, WY

Built 1936 Load: 37.2 t ADT: 1,286

US 89

Fair

Over: Snake River

Bridge Over Snake River, Teton, WY

Built 2013 Load: 37.2 t ADT: 5,455

I-80 Bus

Fair

Over: Smiths Fork River

Lyman - I-80 Jct, Uinta, WY

Built 1949 Load: 37.2 t ADT: 755

I-25 SBL

Fair

Over: BNSF Railway

Colorado Line - Cheyenne, Laramie, WY

Built 1964 Load: 37.6 t ADT: 10,038

WYO 116 N

Fair

Over: Mason Creek

17.13 Mi S. Of Sundance, Weston, WY

Built 1989 Load: 37.8 t ADT: 410

Ames Avenue

Fair

Over: Crow Creek

City Of Chey Ames Avenue, Laramie, WY

Built 1990 Load: 37.9 t ADT: 7,502

Cl Cnty Rd 91

Fair

Over: Cottonwood Creek

T53N R070W 536, Campbell, WY

Built 1987 Load: 38.1 t ADT: 40

Cl Cnty Rd 49

Fair

Over: Little Powder River

Rocky Point Road, Campbell, WY

Built 1996 Load: 38.1 t ADT: 112

US 26

Fair

Over: Wyo Central Canal No 2

Diversion D Jt - Riverton, Fremont, WY

Built 1957 Load: 38.1 t ADT: 13,309

US 26

Fair

Over: Dinwoody Creek

Dubois-Diversion Dam Jct., Fremont, WY

Built 1988 Load: 38.1 t ADT: 1,554

US 20

Fair

Over: Owl Creek

Thermopolis - Worland, Hot Springs, WY

Built 1937 Load: 38.1 t ADT: 1,919

US 20

Fair

Over: Coal Draw

Thermopolis - Worland, Hot Springs, WY

Built 1949 Load: 38.1 t ADT: 2,340

WYO 120

Fair

Over: Cottonwood Creek

Thermopolis-Meeteetse, Hot Springs, WY

Built 1988 Load: 38.1 t ADT: 1,268

I-25 Service Road

Fair

Over: Little Bear Creek

Cheyenne - Chugwater, Laramie, WY

Built 1946 Load: 38.1 t ADT: 48

US 89

Fair

Over: Cottonwood Creek

Idaho Line - Afton, Lincoln, WY

Built 1977 Load: 38.1 t ADT: 1,186

US 189

Fair

Over: Muddy Creek

Kemmerer-Big Piney, Lincoln, WY

Built 1985 Load: 38.1 t ADT: 733

US 20

Fair

Over: Middle Fork Casper Creek

Casper-Shoshoni, Natrona, WY

Built 1984 Load: 38.1 t ADT: 2,908

VeteransCemeteryRd

Fair

Over: North Platte River

T34N R079W S36, Natrona, WY

Built 1985 Load: 38.1 t ADT: 100

US 85

Fair

Over: Cheyenne River

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1990 Load: 38.1 t ADT: 1,079

NORTHEAST ENTRANCE

Fair

Over: DRY CREEK

3.8 miles west of NE Entr, Park, WY

Built 1936 Load: 38.1 t ADT: 1,982

NORTHEAST ENTRANCE

Fair

Over: DRY CREEK

4.6 MI. WEST OF NE ENTRAN, Park, WY

Built 1936 Load: 38.1 t ADT: 1,982

WYO 296

Fair

Over: Crandall Creek

Jct US 212 - Jct WYO 120, Park, WY

Built 1972 Load: 38.1 t ADT: 832

US 14A

Fair

Over: BNSF Railway

Garland-Byron Road, Park, WY

Built 1985 Load: 38.1 t ADT: 1,887

WYO 331

Fair

Over: Big Goose Creek

Sheridan - Beckton, Sheridan, WY

Built 1970 Load: 38.1 t ADT: 1,490

US 191

Fair

Over: Bitter Creek

Jct I-80 - Utah Line, Sweetwater, WY

Built 1966 Load: 38.1 t ADT: 3,942

U.S. ROUTE 89

Fair

Over: GROS VENTRE RIVER

6.1 miles north of Jackso, Teton, WY

Built 1962 Load: 38.1 t ADT: 8,000

LUPINE MEADOWS ROA

Fair

Over: COTTONWOOD CREEK

7.3 miles northwest of Mo, Teton, WY

Built 2005 Load: 38.1 t ADT: 30

US 89

Fair

Over: Flat Creek

Jackson - Moran Jct., Teton, WY

Built 1987 Load: 38.1 t ADT: 9,653

W Snow King Ave

Fair

Over: Flat Creek

Jackson, Teton, WY

Built 1985 Load: 38.1 t ADT: 5,619

Ui Cnty Rd 233

Fair

Over: Unnamed Draw

12 Miles N.E. Of Lyman, Uinta, WY

Built 1960 Load: 38.1 t ADT: 41

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 38.1 t ADT: 317

WYO 116 S

Fair

Over: Beaver Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 38.1 t ADT: 309

WYO 59

Fair

Over: Bone Pile Creek

Reno Jct - Gillette, Campbell, WY

Built 1972 Load: 38.2 t ADT: 5,962

ROAD 40075

Fair

Over: EAST FORK SMITHS FORK

NO DATA ENTERED, Uinta, WY

Built 1982 Load: 38.2 t ADT: 50

US 16 Bypass

Fair

Over: BNSF Railway

Newcastle, Weston, WY

Built 1976 Load: 38.2 t ADT: 5,049

I-25 NBL

Fair

Over: Murphy Creek

Casper - Kaycee, Johnson, WY

Built 1960 Load: 38.5 t ADT: 1,499

WYO 151

Fair

Over: Bear Creek

Jct Us 85 - Lagrange, Goshen, WY

Built 1981 Load: 38.6 t ADT: 1,020

Pershing Blvd

Fair

Over: Dry Creek

Cheyenne east side, Laramie, WY

Built 1993 Load: 38.6 t ADT: 11,213

Bear River Drive

Fair

Over: Bear River

Evanston, Uinta, WY

Built 1941 Load: 38.6 t ADT: 2,952

Park Street

Fair

Over: Big Horn River

Thermopolis, Hot Springs, WY

Built 1986 Load: 38.7 t ADT: 1,673

Al Cnty Rd 510

Fair

Over: Lil Laramie Riv Overflow

12 Mi Ne Of Centennial, Albany, WY

Built 2001 Load: 38.8 t ADT: 34

I-25 Service Road

Fair

Over: Horse Creek

Cheyenne - Chugwater, Laramie, WY

Built 1946 Load: 38.8 t ADT: 43

I-25 SBL

Fair

Over: Murphy Creek

Casper - Kaycee, Johnson, WY

Built 1960 Load: 38.9 t ADT: 1,439

US 16

Fair

Over: Slick Creek

Worland - Ten Sleep, Washakie, WY

Built 2012 Load: 38.9 t ADT: 3,277

Showing 1,851-1,900 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.