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

Fair

Over: Big Horn River

Worland, Washakie, WY

Built 1975 Load: 30.8 t ADT: 4,384

US 16 Bypass

Fair

Over: Cambria Creek

Newcastle, Weston, WY

Built 1977 Load: 30.8 t ADT: 2,934

WYO 116 S

Fair

Over: BNSF Railway

Upton - Jct WYO 450, Weston, WY

Built 1980 Load: 30.8 t ADT: 514

Al Cnty Rd 713

Fair

Over: North Laramie River

35 Mi Ne Of Rock River, Albany, WY

Built 1970 Load: 31.0 t ADT: 19

Al Cnty Rd 54

Fair

Over: Zeigler Creek

16 Mi Nw Of Laramie, Albany, WY

Built 2002 Load: 31.0 t ADT: 128

Bh Cnty Rd R4

Fair

Over: Sidon Canal

3 Miles East Of Deaver, Big Horn, WY

Built 1950 Load: 31.0 t ADT: 117

El Camino Court

Fair

Over: Stonepile Creek

Gillette Streets, Campbell, WY

Built 1984 Load: 31.0 t ADT: 1,048

Cb Cnty Rd 209

Fair

Over: Unnamed Draw

14 Mi. N.W. Of Encampment, Carbon, WY

Built 1986 Load: 31.0 t ADT: 10

WYO 59

Fair

Over: Dilts Hollow

Conv Co-Douglas-Wright, Converse, WY

Built 1960 Load: 31.0 t ADT: 1,727

WYO 789

Fair

Over: Little Wind River

Lander - Riverton, Fremont, WY

Built 1976 Load: 31.0 t ADT: 3,514

Ln Cnty Rd 114

Fair

Over: Tincup Creek

3.5 Miles N. Of Etna, Lincoln, WY

Built 1970 Load: 31.0 t ADT: 404

Sun Burst Drive

Fair

Over: Cody Canal

Apx 8 Miles Sw Of Cody, Park, WY

Built 1980 Load: 31.0 t ADT: 128

Sb Cnty Rd 132

Fair

Over: Little Sandy Creek

Sublette County, Sublette, WY

Built 1991 Load: 31.0 t ADT: 168

Bh Cnty Rd 268

Fair

Over: Medicine Lodge Creek

1 Mile N.E. Of Hyatville, Big Horn, WY

Built 1970 Load: 31.1 t ADT: 188

FDR 28

Fair

Over: N.FORK CRAZY WOMAN CREEK

1.2 MI NORTH OF HWY 16, Johnson, WY

Built 1977 Load: 31.1 t ADT: 10

SOUTH FORK MINER C

Fair

Over: South Fork Miner Creek

5 mi SW of Encampment, WY, Carbon, WY

Built 1996 Load: 31.4 t ADT: 50

Go Cnty Rd 15G

Fair

Over: Interstate Canal

Ft. Laramie, Goshen, WY

Built 1973 Load: 31.4 t ADT: 201

WYO 120

Fair

Over: Alkali Lake

Thermopolis - Cody, Park, WY

Built 1970 Load: 31.4 t ADT: 2,654

US 191

Fair

Over: Hoback River

Daniel Jct - Hoback Jct, Sublette, WY

Built 1978 Load: 31.4 t ADT: 1,868

Fr Cnty Rd 432

Fair

Over: Five Mile Creek

T03N R004E S27, Fremont, WY

Built 1975 Load: 31.7 t ADT: 168

I-90 EBL

Fair

Over: Powder River

Buffalo - Gillette, Johnson, WY

Built 1961 Load: 31.7 t ADT: 1,820

I-90 WBL

Fair

Over: Powder River

Buffalo - Gillette, Johnson, WY

Built 1961 Load: 31.7 t ADT: 1,833

NORTHEAST ENTRANCE

Fair

Over: DRY CREEK

3.3 MI. WEST OF NE ENTRAN, Park, WY

Built 1936 Load: 31.7 t ADT: 1,982

NORTHEAST ENTRANCE

Fair

Over: PEBBLE CREEK

9.2 MI. WEST OF NE ENTRAN, Park, WY

Built 1934 Load: 31.7 t ADT: 1,982

BEARTOOTH HIGHWAY

Fair

Over: INDEX CREEK

9.9 MI. EAST OF NE ENTRAN, Park, WY

Built 1963 Load: 31.7 t ADT: 1,600

WYO 114

Fair

Over: Deaver Canal

Powell - Deaver, Park, WY

Built 1965 Load: 31.7 t ADT: 1,054

Pa Cnty Rd 6EH

Fair

Over: S Fork Shoshone River

34 Miles S.W. Of Cody, Park, WY

Built 1964 Load: 31.7 t ADT: 128

Pa Cnty Rd R5B

Fair

Over: Unnamed Draw

4.5 Miles S. Of Garland, Park, WY

Built 1960 Load: 31.7 t ADT: 128

Sb Cnty Rd 139

Fair

Over: Green River

T29N R111W S33, Sublette, WY

Built 1973 Load: 31.7 t ADT: 49

GRAND LOOP ROAD

Fair

Over: GIBBON RIVER

0.5 MI. SOUTH OF MADISON, Teton, WY

Built 1960 Load: 31.7 t ADT: 1,807

GRAND LOOP ROAD

Fair

Over: FIREHOLE RIVER

14.6 MI. SOUTH OF MADISON, Teton, WY

Built 1967 Load: 31.7 t ADT: 1,807

Al Cnty Rd 51

Fair

Over: Little Laramie River

14 Mi. Nw. Of Laramie, Albany, WY

Built 1992 Load: 31.8 t ADT: 154

US 14

Fair

Over: Red Gulch

Greybull - Burgess Jct, Big Horn, WY

Built 1971 Load: 31.8 t ADT: 824

Bh Cnty Rd 268

Fair

Over: Medicine Lodge Creek

3 Miles Ne. Of Hyattville, Big Horn, WY

Built 1977 Load: 31.8 t ADT: 188

I-90 EBL

Fair

Over: W Fork Wild Horse Creek

Buffalo - Gillette, Campbell, WY

Built 1960 Load: 31.8 t ADT: 2,057

I-90 EBL

Fair

Over: E Fork Wild Horse Creek

Buffalo - Gillette, Campbell, WY

Built 1960 Load: 31.8 t ADT: 2,057

I-90 WBL

Fair

Over: E Fork Wild Horse Creek

Buffalo - Gillette, Campbell, WY

Built 1960 Load: 31.8 t ADT: 2,114

WYO 59

Fair

Over: Caballo Creek

Reno Jct - Gillette, Campbell, WY

Built 1972 Load: 31.8 t ADT: 5,962

WYO 59

Fair

Over: Unnamed Draw

Reno Jct - Gillette, Campbell, WY

Built 1977 Load: 31.8 t ADT: 5,714

NFSR 261

Fair

Over: MAIN FORK BOW RIVER

0.3 MI. W OF CR 101, Carbon, WY

Built 1964 Load: 31.8 t ADT: 17

I-80 EBL

Fair

Over: UPRR

Rawlins Marginal, Carbon, WY

Built 1962 Load: 31.8 t ADT: 6,057

I-80 WBL

Fair

Over: UPRR

Rawlins Marginal, Carbon, WY

Built 1962 Load: 31.8 t ADT: 6,093

I-80 EBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 31.8 t ADT: 5,683

I-80 WBL

Fair

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 31.8 t ADT: 5,747

I-80 EBL

Fair

Over: Rock Creek

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 31.8 t ADT: 5,820

I-80 WBL

Fair

Over: Rock Creek

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 31.8 t ADT: 5,905

WYO 76

Fair

Over: UPRR

Sinclair, Carbon, WY

Built 1960 Load: 31.8 t ADT: 502

Co Cnty Rd 57

Fair

Over: North Platte River

5 Miles West Of Orin, Converse, WY

Built 1983 Load: 31.8 t ADT: 62

I-90 EBL

Fair

Over: Well Creek

Gillette - Moorcroft, Crook, WY

Built 1969 Load: 31.8 t ADT: 3,173

I-90 WBL

Fair

Over: Well Creek

Gillette - Moorcroft, Crook, WY

Built 1969 Load: 31.8 t ADT: 3,020

Showing 1,151-1,200 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.