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-25 NBL

Fair

Over: Machinery Pass

Casper - Kaycee, Natrona, WY

Built 1980 Load: 36.3 t ADT: 1,515

WYO 120

Fair

Over: Cottonwood Creek

Cody-Montana State Line, Park, WY

Built 1989 Load: 36.3 t ADT: 1,324

US 26

Fair

Over: Whalen Draw

Guernsey - Lingle, Platte, WY

Built 1962 Load: 36.3 t ADT: 1,667

WYO 34

Fair

Over: Bluegrass Creek

Bosler Jct - Wheatland, Platte, WY

Built 1983 Load: 36.3 t ADT: 1,287

I-90 EBL

Fair

Over: Goose Creek

Sheridan Marginal, Sheridan, WY

Built 1960 Load: 36.3 t ADT: 3,609

I-90 EBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1982 Load: 36.3 t ADT: 3,374

I-90 EBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1982 Load: 36.3 t ADT: 3,374

I-90 WBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1982 Load: 36.3 t ADT: 3,535

Sh Cnty Rd 28

Fair

Over: Little Goose Creek

0.25 Mi. E. Of Big Horn, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 1,399

I-90 EBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 2,040

I-90 EBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 2,040

I-90 WBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 2,076

I-90 EBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 2,040

I-90 WBL

Fair

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 2,076

US 189

Fair

Over: Prairie Creek

Kemmerer - Daniel Jct, Sublette, WY

Built 1981 Load: 36.3 t ADT: 1,380

US 191

Fair

Over: Wildlife Crossing

Pinedale-Daniel Jct Rd, Sublette, WY

Built 1992 Load: 36.3 t ADT: 2,948

US 191

Fair

Over: UPRR

Jct I-80 - Utah Line, Sweetwater, WY

Built 1966 Load: 36.3 t ADT: 3,942

Te Cnty Rd 3

Fair

Over: Fish Creek

1.6 Miles North Of Wilson, Teton, WY

Built 1989 Load: 36.3 t ADT: 280

Ui Cnty Rd 261

Fair

Over: Chapman Creek

2.5 Mi. N.W. Of Robertson, Uinta, WY

Built 1984 Load: 36.3 t ADT: 72

WYO 414

Fair

Over: Smiths Fork River

Mountain View Streets, Uinta, WY

Built 1990 Load: 36.3 t ADT: 1,520

Wa Cnty Rd 47

Fair

Over: Nowood River

5 Mi. N.W. Of Tensleep, Washakie, WY

Built 1981 Load: 36.3 t ADT: 523

NO DATA ENTERED

Fair

Over: NO DATA ENTERED

NO DATA ENTERED, Lincoln, WY

Built 2012 Load: 36.6 t ADT: 75

I-25 NBL

Fair

Over: Machinery Pass

Casper - Kaycee, Natrona, WY

Built 1980 Load: 36.6 t ADT: 1,515

I-80 EBL

Fair

Over: Laramie River

Laramie Marginal, Albany, WY

Built 1962 Load: 37.2 t ADT: 9,282

I-80 WBL

Fair

Over: Laramie River

Laramie Marginal, Albany, WY

Built 1962 Load: 37.2 t ADT: 9,328

WYO 12

Fair

Over: Browns Creek

Jct WYO 130 - Jct I-80, Albany, WY

Built 1953 Load: 37.2 t ADT: 166

WYO 130

Fair

Over: N F Little Laramie River

Laramie - Jct WYO 230, Albany, WY

Built 1979 Load: 37.2 t ADT: 749

WYO 13

Fair

Over: UPRR

Rock River - Jct 1-80, Albany, WY

Built 1983 Load: 37.2 t ADT: 192

US 14

Fair

Over: BNSF Railway

Greybull - Jct WYO 310, Big Horn, WY

Built 1961 Load: 37.2 t ADT: 5,063

WYO 37

Fair

Over: Shoshone River

Jct Us 14A - North, Big Horn, WY

Built 1962 Load: 37.2 t ADT: 717

WYO 59

Fair

Over: Dry Creek

Reno Jct - Gillette, Campbell, WY

Built 1977 Load: 37.2 t ADT: 5,017

WYO 387

Fair

Over: Dry Fork Powder River

Midwest - Reno Jct, Campbell, WY

Built 1980 Load: 37.2 t ADT: 1,784

I-80 EBL

Fair

Over: North Platte River

Rawlins - Laramie, Carbon, WY

Built 1963 Load: 37.2 t ADT: 6,360

WYO 74

Fair

Over: North Platte River

Saratoga - East, Carbon, WY

Built 1963 Load: 37.2 t ADT: 4,332

US 30

Fair

Over: UPRR

Walcott Jt - Medicine Bow, Carbon, WY

Built 1950 Load: 37.2 t ADT: 452

WYO 319

Fair

Over: North Platte River

Glendo - Orin Jct, Converse, WY

Built 1950 Load: 37.2 t ADT: 295

WYO 59

Fair

Over: Antelope Creek

Douglas-Reno Jct, Converse, WY

Built 1993 Load: 37.2 t ADT: 994

US 26

Fair

Over: Wind River

Dubois-Diversion Dam Jct, Fremont, WY

Built 1983 Load: 37.2 t ADT: 1,554

US 26

Fair

Over: Red Creek

Dubois-Diversion Dam, Fremont, WY

Built 1989 Load: 37.2 t ADT: 1,554

Fr Cnty Rd 385

Fair

Over: Pilot Canal

8 Mi. N.W. Of Riverton, Fremont, WY

Built 1993 Load: 37.2 t ADT: 904

WYO 157

Fair

Over: North Platte River

Lingle - Barnes, Goshen, WY

Built 1987 Load: 37.2 t ADT: 374

I-90 / US 87 Bus

Fair

Over: French Creek

Buffalo, Main Street, Johnson, WY

Built 1955 Load: 37.2 t ADT: 1,438

I-90 EBL

Fair

Over: Dead Horse Creek

Buffalo - Gillette, Johnson, WY

Built 1962 Load: 37.2 t ADT: 1,823

I-90 WBL

Fair

Over: Dead Horse Creek

Buffalo - Gillette, Johnson, WY

Built 1962 Load: 37.2 t ADT: 1,833

WYO 192

Fair

Over: Powder River

Kaycee - Jct WYO 387, Johnson, WY

Built 1959 Load: 37.2 t ADT: 116

I-25 NBL

Fair

Over: Crow Creek

Cheyenne Marginal, Laramie, WY

Built 1958 Load: 37.2 t ADT: 9,304

I-25 SBL

Fair

Over: Crow Creek

Cheyenne Marginal, Laramie, WY

Built 1958 Load: 37.2 t ADT: 10,700

WYO 212

Fair

Over: Dry Creek

College Drive Cheyenne, Laramie, WY

Built 1978 Load: 37.2 t ADT: 19,272

WYO 210

Fair

Over: Crow Creek

Happy Jack Rd-Cheyenne, Laramie, WY

Built 1989 Load: 37.2 t ADT: 4,206

Ln Cnty Rd 125

Fair

Over: East Side Canal

Thayne Streets, Lincoln, WY

Built 1979 Load: 37.2 t ADT: 153

Showing 1,801-1,850 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.