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

3318: SHELL CREEK

Fair

Over: SAND CREEK

15 mi W of Baggs, WY, Sweetwater, WY

Built 2002 Load: 62.9 t ADT: 100

US 26

Fair

Over: Wind River

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 63.5 t ADT: 1,554

Al Cnty Rd 57A

Fair

Over: Mill Creek

14 Mi N.E. Of Centennial, Albany, WY

Built 1999 Load: 64.4 t ADT: 51

Logan Avenue

Fair

Over: UPRR

Cheyenne/Dunn Ave, Laramie, WY

Built 2009 Load: 64.4 t ADT: 12,601

GRAND LOOP ROAD

Fair

Over: GIBBON RIVER

4.9 MI. SOUTH OF NORRIS J, Teton, WY

Built 1936 Load: 67.1 t ADT: 1,807

Co Cnty Rd 53

Fair

Over: S Fork Walker Creek

20 miles NE of Douglas, Converse, WY

Built 1950 Load: 67.3 t ADT: 260

Ln Cnty Rd 150

Fair

Over: Salt River

1 Mile Sw Of Smoot, Lincoln, WY

Built 2006 Load: 71.7 t ADT: 280

Wa Cnty Rd 82

Fair

Over: Nowood River

9 Mi Sw Of Big Trails, Washakie, WY

Built 2002 Load: 71.7 t ADT: 59

Sh Cnty Rd 74

Fair

Over: East Wolf Creek

7 Mi S Of Ranchester, Sheridan, WY

Built 2003 Load: 73.5 t ADT: 457

US 287

Fair

Over: UPRR

Laramie Streets, Albany, WY

Built 2005 Load: 74.4 t ADT: 4,821

Ui Cnty Rd 237

Fair

Over: Blacks Fork River

8 Mi. N.E. Of Lyman, Uinta, WY

Built 1986 Load: 74.4 t ADT: 87

US 20

Fair

Over: North Platte River

Casper, Natrona, WY

Built 1979 Load: 76.2 t ADT: 12,085

US 16

Fair

Over: BNSF Railway

Basin-Greybull, Big Horn, WY

Built 2005 Load: 78.0 t ADT: 3,295

Co Cnty Rd 30

Fair

Over: Laprele Creek

8 Miles Nw Of Douglas, Converse, WY

Built 1997 Load: 84.4 t ADT: 38

ENTRANCE ROAD

Fair

Over: BELLE FOURCHE RIVER

26.6 MILES NORTHEAST OF I, Crook, WY

Built 1980 Load: 86.2 t ADT: 1,000

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

NO DATA ENTERED, Park, WY

Built 1960 Load: 88.1 t ADT: 50

Bh Cnty Rd R5C

Fair

Over: Farmers Canal

12 Miles West Of Otto, Big Horn, WY

Built 1994 Load: 89.8 t ADT: 20

Co Cnty Rd 43

Fair

Over: Dry Creek

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

Built 1960 Load: 89.8 t ADT: 563

Ln Cnty Rd 134

Fair

Over: Stump Creek

1.9 Miles West Of Auburn, Lincoln, WY

Built 1988 Load: 89.8 t ADT: 120

Skyline Drive

Fair

Over: BNSF Railway

Guernsey State Park, Platte, WY

Built 1998 Load: 91.6 t ADT: 206

Cb Cnty Rd 408

Fair

Over: Jack Creek

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

Built 1982 Load: 99.6 t ADT: 97

Bh Cnty Rd R2C

Fair

Over: Whistle Creek

8 Miles S.W. Of Byron, Big Horn, WY

Built 1994 Load: 99.9 t ADT: 18

Co Cnty Rd 24

Fair

Over: Laprele Creek

25 Miles Sw Of Douglas, Converse, WY

Built 2009 Load: 99.9 t ADT: 52

IRR BIA RTE 101

Fair

Over: MUDDY CREEK

4 KM SOUTH OF MAIL CAMP, Fremont, WY

Built 1975 Load: 99.9 t ADT: 90

County Road 90

Fair

Over: Ft Laramie Canal

4.1 mi W-SW of Ft Laramie, Goshen, WY

Built 1915 Load: 99.9 t ADT: 2

County Road 60

Fair

Over: Ft Laramie Canal

5.2 mi W-NW of Veteran WY, Goshen, WY

Built 1913 Load: 99.9 t ADT: 2

FDR

Good

Over: WARM SPRINGS CREEK

NO DATA ENTERED, Fremont, WY

Built 1981 ADT: 50

FOREST ROAD 10138

Good

Over: LITTLE GREYS RIVER

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

Built 1968 ADT: 50

NFSR

Good

Over: SUNLIGHT CREEK

NO DATA ENTERED, Park, WY

Built 1972 ADT: 50

Pl Cnty Rd 204

Good

Over: Laramie River

9.5 mi west of Wheatland, Platte, WY

Built 2016 ADT: 14

LUCERNE

Good

Over: LINWOOD

.3 MI E JCT WYO-530, Sweetwater, WY

Built 1963 ADT: 20

NO DATA ENTERED

Good

Over: GROS VENTRE RIVER

NO DATA ENTERED, Teton, WY

Built 2009 ADT: 75

NO DATA ENTERED

Good

Over: DARBY CREEK

NO DATA ENTERED, Teton, WY

Built 2019 ADT: 50

Forest Road 443

Good

Over: COW CREEK

3 MI N OF SH 70, Carbon, WY

Built 1986 Load: 9.1 t ADT: 12

FDR

Good

Over: LITTLE POPO AGIE RIVER

T31N R100W S32, Fremont, WY

Built 2011 Load: 10.0 t ADT: 50

FOREST ROAD 10303

Good

Over: BIG SANDY CREEK

NO DATA ENTERED, Sublette, WY

Built 2006 Load: 12.0 t ADT: 50

I-25 Service Road

Good

Over: Sheep Creek

Bar Nunn North, Natrona, WY

Built 1950 Load: 12.4 t ADT: 85

NFSR 509

Good

Over: LAKE CREEK

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

Built 1953 Load: 14.3 t ADT: 18

FDR

Good

Over: LITTLE POPO AGIE

NO DATA ENTERED, Fremont, WY

Built 1937 Load: 15.2 t ADT: 50

FDR 26

Good

Over: BIG GOOSE CREEK

7.6 MI ON FDR 26, Sheridan, WY

Built 1986 Load: 15.2 t ADT: 56

NFSR 658

Good

Over: LA BONTE CREEK

1 MI. W OF CURTISGULCH CG, Albany, WY

Built 1965 Load: 15.9 t ADT: 50

FOREST ROAD 10003

Good

Over: GREYS RIVER

NO DATA ENTERED, Lincoln, WY

Built 1958 Load: 16.8 t ADT: 50

NFSR 349

Good

Over: LIBBY CREEK

ENTRANCE TO SPRUCE CG, Albany, WY

Built 1961 Load: 17.2 t ADT: 44

I-25 Service Road

Good

Over: Unnamed Draw

Bar Nunn North, Natrona, WY

Built 1948 Load: 17.2 t ADT: 85

BEARTOOTH HIGHWAY

Good

Over: LAKE CREEK

19.0 MI. EAST OF NE ENTRA, Park, WY

Built 1974 Load: 17.2 t ADT: 1,775

FOREST ROAD 31000

Good

Over: FALL CREEK

11 MI. S. OF JACKSON WY, Teton, WY

Built 2014 Load: 17.2 t ADT: 50

ROAD

Good

Over: N. LEIGH CREEK

NO DATA ENTERED, Teton, WY

Built 1974 Load: 18.5 t ADT: 50

FDR 373

Good

Over: MIDDLE FORK CLEAR CREEK

.50 MI WEST OF HWY 16, Johnson, WY

Built 1959 Load: 19.1 t ADT: 25

FOREST ROAD 10103

Good

Over: LABARGE CREEK

NO DATA ENTERED, Sublette, WY

Built 1997 Load: 19.1 t ADT: 50

WYO 414

Good

Over: Blacks Fork River

1.5 Miles North Of Urie, Uinta, WY

Built 1989 Load: 19.2 t ADT: 4,393

Showing 2,151-2,200 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.