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

I-80 WBL

Fair

Over: Unnamed Draw

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 6,368

I-80 EBL and WBL

Fair

Over: Browns Creek

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 6,163

I-80 EBL and WBL

Fair

Over: Poverty Draw

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 6,163

I-80 EBL

Fair

Over: Unnamed Draw

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 6,163

I-80 WBL

Fair

Over: Unnamed Draw

Rawlins - Laramie, Albany, WY

Built 1969 Load: 32.7 t ADT: 6,368

US 287

Fair

Over: Harney Creek

Laramie - Colo Line, Albany, WY

Built 1958 Load: 32.7 t ADT: 4,624

WYO 130

Fair

Over: Lake Hattie Canal

Laramie - Jct WYO 230, Albany, WY

Built 1966 Load: 32.7 t ADT: 1,431

Al Cnty Rd 513

Fair

Over: Little Laramie River

12 Mi East Of Centennial, Albany, WY

Built 1979 Load: 32.7 t ADT: 128

16th Street

Fair

Over: Spring Creek

Laramie, Albany, WY

Built 1983 Load: 32.7 t ADT: 628

S 17th Street

Fair

Over: Spring Creek

Laramie, Albany, WY

Built 1960 Load: 32.7 t ADT: 3,413

15th Street

Fair

Over: Spring Creek

15Th Street In Laramie, Albany, WY

Built 1960 Load: 32.7 t ADT: 6,046

S 2nd Street

Fair

Over: Spring Creek

2nd Street - Laramie, Albany, WY

Built 1983 Load: 32.7 t ADT: 252

S 13th Street

Fair

Over: Spring Creek

Laramie, Albany, WY

Built 1983 Load: 32.7 t ADT: 429

WYO 210

Fair

Over: S Fork Lodgepole Creek

Happy Jack Road, Albany, WY

Built 1987 Load: 32.7 t ADT: 965

Al Cnty Rd 610

Fair

Over: Sheep Creek

30 Mi N. Of Rock River, Albany, WY

Built 1989 Load: 32.7 t ADT: 21

Al Cnty Rd 51

Fair

Over: Laramie River

7 Miles N. Of Laramie, Albany, WY

Built 1992 Load: 32.7 t ADT: 154

US 16

Fair

Over: Dobie Creek

Worland - Basin, Big Horn, WY

Built 1957 Load: 32.7 t ADT: 2,122

US 16

Fair

Over: Antelope Creek

Worland - Basin, Big Horn, WY

Built 1957 Load: 32.7 t ADT: 2,122

US 16

Fair

Over: Greybull River

Basin - Greybull, Big Horn, WY

Built 1955 Load: 32.7 t ADT: 3,295

US 14

Fair

Over: Shell Creek

Greybull - Burgess Jct, Big Horn, WY

Built 1966 Load: 32.7 t ADT: 511

WYO 32

Fair

Over: Coon Creek

Lovell - Emblem, Big Horn, WY

Built 1971 Load: 32.7 t ADT: 729

WYO 32

Fair

Over: Dry Creek

Lovell - Emblem, Big Horn, WY

Built 1966 Load: 32.7 t ADT: 729

Bh Cnty Rd R43

Fair

Over: Trapper Creek

3.5 Miles Se Of Shell, Big Horn, WY

Built 1965 Load: 32.7 t ADT: 117

Bh Cnty Rd 229

Fair

Over: Antelope Creek

2 Miles S. Of Basin, Big Horn, WY

Built 1926 Load: 32.7 t ADT: 339

WYO 51

Fair

Over: Unnamed Draw

Gillette - Moorcroft, Campbell, WY

Built 1952 Load: 32.7 t ADT: 1,452

WYO 59

Fair

Over: Unnamed Draw

Gillette - Mont Line, Campbell, WY

Built 1954 Load: 32.7 t ADT: 543

WYO 59

Fair

Over: Donkey Creek

Reno Jct - Gillette, Campbell, WY

Built 1975 Load: 32.7 t ADT: 22,301

WYO 59

Fair

Over: Coal Creek

Gillette - Mont Line, Campbell, WY

Built 1951 Load: 32.7 t ADT: 1,030

WYO 59

Fair

Over: Burlington Supply Ditch

Gillette, Campbell, WY

Built 1941 Load: 32.7 t ADT: 14,308

I-90 EBL and WBL

Fair

Over: Stonepile Creek

Gillette Marginal, Campbell, WY

Built 1974 Load: 32.7 t ADT: 3,744

I-90 EBL and WBL

Fair

Over: Unnamed Draw

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 32.7 t ADT: 3,173

I-90 EBL Off Ramp

Fair

Over: Unnamed Draw

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 32.7 t ADT: 471

I-90 EBL and WBL

Fair

Over: Unnamed Draw

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 32.7 t ADT: 3,552

WYO 59

Fair

Over: Stonepile Creek

Gillette, Campbell, WY

Built 1981 Load: 32.7 t ADT: 14,308

N Burma Avenue

Fair

Over: Stonepile Creek

North Burma Road Gillette, Campbell, WY

Built 1979 Load: 32.7 t ADT: 1,313

Cl Cnty Rd 117

Fair

Over: Stonepile Creek

Gillette, Campbell, WY

Built 1982 Load: 32.7 t ADT: 2,756

Echeta Road

Fair

Over: Stonepile Creek

Gillette-Echeta Road, Campbell, WY

Built 1984 Load: 32.7 t ADT: 3,547

WYO 50

Fair

Over: Mud Spring Creek

Savageton-Pine Tree, Campbell, WY

Built 1985 Load: 32.7 t ADT: 1,501

WYO 50

Fair

Over: S Branch Fourmile Creek

Savageton-Pine Tree, Campbell, WY

Built 1985 Load: 32.7 t ADT: 1,501

Cl Cnty Rd 99B

Fair

Over: Machinery Pass

20 Mi. S.E. Of Gillette, Campbell, WY

Built 1983 Load: 32.7 t ADT: 150

Cl Cnty Rd 11

Fair

Over: SA Creek

Big Powder River Road, Campbell, WY

Built 1991 Load: 32.7 t ADT: 20

Cl Cnty Rd 61

Fair

Over: Belle Fourche River

O.R. County Road, Campbell, WY

Built 1990 Load: 32.7 t ADT: 43

WYO 59

Fair

Over: N F Little Rawhide Creek

Gillette-Montana, Campbell, WY

Built 1989 Load: 32.7 t ADT: 235

WYO 59

Fair

Over: Dry Fork Creek

Gillette-Montana, Campbell, WY

Built 1960 Load: 32.7 t ADT: 1,333

Cl Cnty Rd 38N

Fair

Over: Donkey Creek

S E Gillette, Campbell, WY

Built 1999 Load: 32.7 t ADT: 5,818

Sinclair Street

Fair

Over: Unnamed Draw

Gillette, Campbell, WY

Built 2009 Load: 32.7 t ADT: 2,325

Cl Cnty Rd 1

Fair

Over: Donkey Creek

15 Mi E Of Gillette, Campbell, WY

Built 2010 Load: 32.7 t ADT: 595

WYO 450

Fair

Over: N Prong Lttle Thunder Cr

8 Mi. SW of Wright, Campbell, WY

Built 1978 Load: 32.7 t ADT: 1,476

I-80 EBL

Fair

Over: Separation Creek

Rock Springs - Rawlins, Carbon, WY

Built 1961 Load: 32.7 t ADT: 6,624

I-80 WBL

Fair

Over: Separation Creek

Rock Springs - Rawlins, Carbon, WY

Built 1961 Load: 32.7 t ADT: 6,663

Showing 1,251-1,300 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.