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 20/26/87

Fair

Over: Deer Creek

Glenrock, Converse, WY

Built 1961 Load: 26.3 t ADT: 3,326

I-90 Service Road

Fair

Over: Andys Draw

Sundance - S Dakota Line, Crook, WY

Built 1956 Load: 26.3 t ADT: 285

WYO 160

Fair

Over: North Platte River

Fort Laramie - West, Goshen, WY

Built 1958 Load: 26.3 t ADT: 80

Hs Cnty Rd 21

Fair

Over: Kirby Creek

9 Mi. Ne Of Thermopolis, Hot Springs, WY

Built 1988 Load: 26.3 t ADT: 226

MISSILE DRIVE

Fair

Over: CROW CREEK

0.17 miles west of Gate 2, Laramie, WY

Built 2015 Load: 26.3 t ADT: 5

WYO 211

Fair

Over: Chugwater Creek

Jct WYO 211 - West, Laramie, WY

Built 1976 Load: 26.3 t ADT: 37

WYO 296

Fair

Over: Pat Ohara Creek

55N 103W Sec24, Park, WY

Built 1965 Load: 26.3 t ADT: 393

Pl Cnty Rd 133

Fair

Over: Sybille Creek

8 Mi. N.W. Of Wheatland, Platte, WY

Built 1988 Load: 26.3 t ADT: 50

US 87 Bus

Fair

Over: Little Goose Creek

Sheridan - Banner, Sheridan, WY

Built 1946 Load: 26.3 t ADT: 1,647

Sh Cnty Rd 70

Fair

Over: Clear Creek

3 Miles N.E. Of Leiter, Sheridan, WY

Built 1973 Load: 26.3 t ADT: 8

U.S. ROUTE 89

Fair

Over: SPREAD CREEK

26.1 miles north of Jacks, Teton, WY

Built 1956 Load: 26.3 t ADT: 5,000

U.S. ROUTE 89

Fair

Over: BUFFALO FORK

0.2 miles south of Moran, Teton, WY

Built 1956 Load: 26.3 t ADT: 5,000

GRAND LOOP ROAD

Fair

Over: FIREHOLE RIVER

16 MI. NW OF WEST THUMB J, Teton, WY

Built 1970 Load: 26.3 t ADT: 1,807

WYO 94

Fair

Over: Bed Tick Creek

Douglas - South, Converse, WY

Built 1959 Load: 26.5 t ADT: 782

I-25 NBL

Fair

Over: Richeau Creek

Chugwater - Wheatland, Platte, WY

Built 1958 Load: 26.5 t ADT: 3,098

FOREST ROAD 10079

Fair

Over: DRY CREEK

3 MI. SE. OF AFTON WY, Lincoln, WY

Built 1965 Load: 26.6 t ADT: 50

1405: NEIBER ROAD

Fair

Over: NOWATER CREEK

12 Mi S. of Worland, WY, Washakie, WY

Built 1997 Load: 26.6 t ADT: 30

WYO 170

Fair

Over: Owl Creek

Jt Wy 120 - Hamilton Dome, Hot Springs, WY

Built 1952 Load: 26.8 t ADT: 162

FOREST ROAD 10079

Fair

Over: DRY CREEK

6 MI. SE. OF AFTON WY, Lincoln, WY

Built 1979 Load: 26.9 t ADT: 50

Jo Cnty Rd 78

Fair

Over: Middle Fork Powder River

12 Mi. S.E. Of Kaycee, Johnson, WY

Built 1990 Load: 27.0 t ADT: 13

Ln Cnty Rd 135

Fair

Over: Swift Creek

3 Miles N.W. Of Afton, Lincoln, WY

Built 1965 Load: 27.0 t ADT: 322

Co Cnty Rd 11

Fair

Over: Laprele Creek

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

Built 1999 Load: 27.1 t ADT: 37

I-80 WBL

Fair

Over: Machinery Pass

Laramie - Cheyenne, Laramie, WY

Built 1961 Load: 27.1 t ADT: 6,876

I-80 EBL

Fair

Over: Machinery Pass

Laramie - Cheyenne, Laramie, WY

Built 1961 Load: 27.1 t ADT: 6,771

WYO 213

Fair

Over: Lodgepole Creek

3 Mi N Of Burns, Laramie, WY

Built 1955 Load: 27.1 t ADT: 809

I-80 WBL

Fair

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 27.1 t ADT: 6,653

Ui Cnty Rd 290

Fair

Over: Henrys Fork River

4 Mi W. Of Jct S-414, Uinta, WY

Built 1989 Load: 27.1 t ADT: 5

US 16

Fair

Over: Big Horn River

Worland - Basin, Big Horn, WY

Built 1978 Load: 27.2 t ADT: 1,339

I-80 EBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,820

I-80 WBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,905

I-80 EBL

Fair

Over: Canon Ditch

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,820

I-80 WBL

Fair

Over: Canon Ditch

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,905

Cb Cnty Rd 291

Fair

Over: Sage Creek

30 Mi. W.Of Shirley Basin, Carbon, WY

Built 1973 Load: 27.2 t ADT: 121

I-90 EBL

Fair

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 27.2 t ADT: 2,133

I-90 WBL

Fair

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 27.2 t ADT: 1,928

I-25 NBL

Fair

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 27.2 t ADT: 1,573

I-25 SBL

Fair

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 27.2 t ADT: 1,472

I-25 NBL

Fair

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 27.2 t ADT: 1,573

I-25 SBL

Fair

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 27.2 t ADT: 1,472

I-25 NBL

Fair

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 27.2 t ADT: 1,967

WYO 295

Fair

Over: Shoshone River

Jct WYO 32 - Powell, Park, WY

Built 1962 Load: 27.2 t ADT: 1,697

I-25 NBL

Fair

Over: Fish Creek

Wheatland - Glendo, Platte, WY

Built 1966 Load: 27.2 t ADT: 3,312

I-25 SBL

Fair

Over: Fish Creek

Wheatland - Glendo, Platte, WY

Built 1966 Load: 27.2 t ADT: 3,390

US 189

Fair

Over: Green River Supply Canal

Kemmerer - Daniel Jct, Sublette, WY

Built 1960 Load: 27.2 t ADT: 1,380

US 189

Fair

Over: Green River Supply Canal

Kemmerer - Daniel Jct, Sublette, WY

Built 1960 Load: 27.2 t ADT: 1,380

TETON PARK ROAD

Fair

Over: SNAKE RIVER

0.3 miles west of junctio, Teton, WY

Built 1956 Load: 27.2 t ADT: 2,941

GRAND LOOP ROAD

Fair

Over: NEZ PERCE CREEK

6.5 MI. SOUTH OF MADISON, Teton, WY

Built 1935 Load: 27.2 t ADT: 1,807

I-80 EBL

Fair

Over: Machinery Pass

Rawlins Marginal, Carbon, WY

Built 1963 Load: 27.4 t ADT: 6,494

I-80 WBL

Fair

Over: Machinery Pass

Rawlins Marginal, Carbon, WY

Built 1963 Load: 27.4 t ADT: 6,522

I-25 NBL

Fair

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1967 Load: 27.4 t ADT: 1,573

Showing 901-950 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.