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

Spruce Street

Fair

Over: Blacks Fork River

Spruce Street, Sweetwater, WY

Built 1984 Load: 32.7 t ADT: 113

Sw Cnty Rd 85

Fair

Over: Unnamed Draw

6 Mi Se Little America, Sweetwater, WY

Built 1980 Load: 32.7 t ADT: 715

Sw Cnty Rd 85

Fair

Over: Meadow Springs Draw

4 Mi Se Of Little America, Sweetwater, WY

Built 1980 Load: 32.7 t ADT: 715

Sw Cnty Rd 1199

Fair

Over: Greasewood Creek

Riovista S-Div Johnson Wy, Sweetwater, WY

Built 1940 Load: 32.7 t ADT: 258

I-80 Service Road

Fair

Over: Unnamed Draw

Rawlins West, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6

I-80 EBL and WBL

Fair

Over: Unnamed Draw

Rock Springs - Rawlins, Sweetwater, WY

Built 1967 Load: 32.7 t ADT: 6,412

US 89

Fair

Over: Fall Creek

Alpine Jct - Hoback Jct, Teton, WY

Built 1950 Load: 32.7 t ADT: 5,455

Te Cnty Rd 15

Fair

Over: Grand Teton Canal

1 Mile West Of Alta, Teton, WY

Built 1974 Load: 32.7 t ADT: 2,059

Te Cnty Rd 16

Fair

Over: Grand Teton Canal

1 Mi West Of Alta, Teton, WY

Built 2005 Load: 32.7 t ADT: 445

WYO 410

Fair

Over: Blacks Fork Creek OvrFlo

Robertson - West, Uinta, WY

Built 1960 Load: 32.7 t ADT: 175

WYO 411

Fair

Over: Blacks Fork Creek OvrFlo

Mountain View - Milburne, Uinta, WY

Built 1966 Load: 32.7 t ADT: 737

WYO 414

Fair

Over: Little Dry Creek

Jct I-80 - Utah Line, Uinta, WY

Built 1961 Load: 32.7 t ADT: 593

WYO 414

Fair

Over: Beaver Creek

Jct I-80 - Utah Line, Uinta, WY

Built 1968 Load: 32.7 t ADT: 57

WYO 89

Fair

Over: Red Willow Creek

Evanston - Utah Line, Uinta, WY

Built 1981 Load: 32.7 t ADT: 1,935

Ui Cnty Rd 180

Fair

Over: Muddy Creek

18 Mi. E. Of Evanston, Uinta, WY

Built 1960 Load: 32.7 t ADT: 71

Ui Cnty Rd 180

Fair

Over: Antelope Creek

15 Mi. E. Of Evanston, Uinta, WY

Built 1960 Load: 32.7 t ADT: 71

I-80 Bus

Fair

Over: Duncomb Hollow

Evanston Streets, Uinta, WY

Built 1987 Load: 32.7 t ADT: 5,615

US 189

Fair

Over: Albert Creek

Lazeart Jct-Kemmerer Rd, Uinta, WY

Built 1988 Load: 32.7 t ADT: 1,134

Ui Cnty Rd 243

Fair

Over: Smiths Fork River

2 Mi East Of Mount View, Uinta, WY

Built 1989 Load: 32.7 t ADT: 71

Ui Cnty Rd 173

Fair

Over: Sulphur Creek

13 Mi Se Of Evanston, Uinta, WY

Built 1999 Load: 32.7 t ADT: 77

WYO 432

Fair

Over: Big Horn River

Worland - Nieber, Washakie, WY

Built 1976 Load: 32.7 t ADT: 233

Wa Cnty Rd 81

Fair

Over: Middle Fork Powder River

20 Mi S.E. Big Trails, Washakie, WY

Built 1975 Load: 32.7 t ADT: 97

US 16

Fair

Over: East Tensleep Creek

Tensleep - Buffalo, Washakie, WY

Built 2012 Load: 32.7 t ADT: 797

US 16

Fair

Over: Cambria Creek

Newcastle, Weston, WY

Built 1973 Load: 32.7 t ADT: 3,141

WYO 450

Fair

Over: Oil Creek

Newcastle-Clareton Road, Weston, WY

Built 1989 Load: 32.7 t ADT: 763

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 32.7 t ADT: 410

I-25 NBL

Fair

Over: M Fork Crazy Woman Creek

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 33.0 t ADT: 1,573

I-25 NBL

Fair

Over: BNSF Railway

Cheyenne Marginal, Laramie, WY

Built 1958 Load: 33.0 t ADT: 11,548

I-25 SBL

Fair

Over: BNSF Railway

Cheyenne Marginal, Laramie, WY

Built 1958 Load: 33.0 t ADT: 10,139

Cb Cnty Rd 303

Fair

Over: Cow Creek

7.5 Mi. N. Of Encampment, Carbon, WY

Built 1982 Load: 33.3 t ADT: 18

Cb Cnty Rd 561N

Fair

Over: Savery Creek

7 Mi. N.E. Of Savery, Carbon, WY

Built 1985 Load: 33.3 t ADT: 81

Cb Cnty Rd 701

Fair

Over: Muddy Creek

14.5 Mi. N.W. Of Baggs, Carbon, WY

Built 1985 Load: 33.3 t ADT: 137

Cb Cnty Rd 508

Fair

Over: North Platte River

6 Mi. N.W. Of Saratoga, Carbon, WY

Built 1986 Load: 33.3 t ADT: 37

NFSR 543

Fair

Over: DOUGLAS CREEK

0.8 MI WEST OF JCT 542, Albany, WY

Built 1961 Load: 33.4 t ADT: 64

BAD PASS ROAD

Fair

Over: CROOKED CREEK

FROM N.P. VISITOR CENTER,, Big Horn, WY

Built 1971 Load: 33.6 t ADT: 60

US 310

Fair

Over: Sage Creek

Lovell - Deaver, Big Horn, WY

Built 1973 Load: 33.6 t ADT: 1,834

Bh Cnty Rd 3

Fair

Over: Sage Creek

2.5 Miles E. Of Deaver, Big Horn, WY

Built 1955 Load: 33.6 t ADT: 150

Bh Cnty Rd R49

Fair

Over: S Fork Paint Rock Creek

Hyattville, Big Horn, WY

Built 1983 Load: 33.6 t ADT: 144

I-90 WBL

Fair

Over: W Fork Wild Horse Creek

Buffalo - Gillette, Campbell, WY

Built 1960 Load: 33.6 t ADT: 2,114

I-90 EBL

Fair

Over: Machinery Pass

Gillette - Moorcroft, Campbell, WY

Built 1974 Load: 33.6 t ADT: 3,173

I-90 WBL

Fair

Over: Machinery Pass

Gillette - Moorcroft, Campbell, WY

Built 1974 Load: 33.6 t ADT: 3,020

US 14

Fair

Over: North Wildcat Creek

Ucross - Jct WYO 59, Campbell, WY

Built 1983 Load: 33.6 t ADT: 1,318

WYO 70

Fair

Over: Ledford Slough

Baggs-Encampment Road, Carbon, WY

Built 1991 Load: 33.6 t ADT: 835

US 18

Fair

Over: Shawnee Creek

Orin Jct - Lusk, Converse, WY

Built 1977 Load: 33.6 t ADT: 2,101

Co Cnty Rd 13

Fair

Over: Laprele Creek

T32N R073W S21, Converse, WY

Built 1985 Load: 33.6 t ADT: 181

WYO 59

Fair

Over: S Fork Cheyenne River

Douglas-Reno Jct, Converse, WY

Built 1994 Load: 33.6 t ADT: 1,727

I-90 EBL

Fair

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1961 Load: 33.6 t ADT: 2,063

I-90 WBL

Fair

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1961 Load: 33.6 t ADT: 1,833

Cr Cnty Rd 269

Fair

Over: Little Missouri River

17 Mi N Of Hulett, Crook, WY

Built 1986 Load: 33.6 t ADT: 38

Cr Cnty Rd 200

Fair

Over: Little Missouri River

21 Mi Nne Of Hulett, Crook, WY

Built 1988 Load: 33.6 t ADT: 51

Showing 1,551-1,600 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.