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

Unknown

Over: I-25 Service Road

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 57

I-25 SBL

Unknown

Over: I-25 Service Road

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 57

I-25 NBL

Unknown

Over: WYO 319

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 130

I-25 SBL

Unknown

Over: El Rancho Road

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 206

I-25 NBL

Unknown

Over: Middle Bear Intg

Wheatland - Glendo, Platte, WY

Built 1961 ADT: 131

I-25 SBL

Unknown

Over: Middle Bear Intg

Wheatland - Glendo, Platte, WY

Built 1961 ADT: 131

I-25 NBL

Unknown

Over: Horseshoe Creek Rd

Wheatland - Glendo, Platte, WY

Built 1974 ADT: 129

I-25 SBL

Unknown

Over: Horseshoe Creek Rd

Wheatland - Glendo, Platte, WY

Built 1974 ADT: 129

I-25 NBL

Unknown

Over: Glendo Intg

Glendo Marginal, Platte, WY

Built 1974 ADT: 1,496

I-25 SBL

Unknown

Over: Glendo Intg

Glendo Marginal, Platte, WY

Built 1974 ADT: 1,496

I-25 NBL

Unknown

Over: WYO 312 (South Street)

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,288

I-25 NBL

Unknown

Over: Swanson Road

Wheatland Marginal, Platte, WY

Built 1975 ADT: 1,075

I-25 SBL

Unknown

Over: Swanson Road

Wheatland Marginal, Platte, WY

Built 1975 ADT: 1,106

I-25 SBL

Unknown

Over: WYO 312 (South Street)

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,288

WYO 310

Unknown

Over: I-25

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,243

I-25 NBL

Unknown

Over: Pl CR 147 (Collins Road)

Glendo - Douglas, Platte, WY

Built 1974 ADT: 19

US 87 Bus

Unknown

Over: I-25

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,320

WYO 314

Unknown

Over: I-25

Chugwater - Wheatland, Platte, WY

Built 1958 ADT: 3,173

I-25 SBL

Unknown

Over: Pl CR 147 (Collins Road)

Glendo - Douglas, Platte, WY

Built 1974 ADT: 19

I-25 NBL

Unknown

Over: Pl CR 211 (Elkhorn Crk)

Glendo - Douglas, Platte, WY

Built 1973 ADT: 15

I-25 SBL

Unknown

Over: Pl CR 211 (Elkhorn Crk)

Glendo - Douglas, Platte, WY

Built 1973 ADT: 15

Pl Cnty Rd 245-1

Unknown

Over: I-25

Cheyenne - Chugwater, Platte, WY

Built 1977 ADT: 3,238

BNSF Railway

Unknown

Over: Pleasant Valley Road

T27N R066W S35, Platte, WY

Built 1960 ADT: 1,266

BNSF Railway

Unknown

Over: Pleasant Valley Road

T27N R066 Sec035, Platte, WY

Built 1960 ADT: 1,266

BNSF Railway

Unknown

Over: Pleasant Valley Road

Guernsey, Platte, WY

Built 1960 ADT: 1,266

I-90 EBL

Unknown

Over: Sh CR 1260 (Acme Road)

Montana Line - Sheridan, Sheridan, WY

Built 1960 ADT: 147

I-90 WBL

Unknown

Over: Sh CR 1260 (Acme Road)

Montana Line - Sheridan, Sheridan, WY

Built 1960 ADT: 147

I-90 EBL

Unknown

Over: Tongue River

Montana Line - Sheridan, Sheridan, WY

Built 1960 ADT: 32

I-90 WBL

Unknown

Over: Tongue River

Montana Line - Sheridan, Sheridan, WY

Built 1960 ADT: 32

I-90 EBL

Unknown

Over: Sh CR 121 (Gulch Road)

Sheridan Marginal, Sheridan, WY

Built 1961 ADT: 27

I-90 WBL

Unknown

Over: Sh CR 121 (Gulch Road)

Sheridan Marginal, Sheridan, WY

Built 1961 ADT: 27

I-90 EBL

Unknown

Over: Kroe Lane

Sheridan Marginal, Sheridan, WY

Built 1961 ADT: 967

I-90 WBL

Unknown

Over: Kroe Lane

Sheridan Marginal, Sheridan, WY

Built 1961 ADT: 967

I-90 EBL

Unknown

Over: US 14

Sheridan Marginal, Sheridan, WY

Built 1965 ADT: 11,171

I-90 WBL

Unknown

Over: US 14

Sheridan Marginal, Sheridan, WY

Built 1965 ADT: 11,171

I-90 EBL

Unknown

Over: WYO 342

Sheridan - Buffalo, Sheridan, WY

Built 1968 ADT: 955

I-90 WBL

Unknown

Over: Sh CR 131 (Meade Creek)

Sheridan - Buffalo, Sheridan, WY

Built 1968 ADT: 27

I-90 EBL

Unknown

Over: CR 129 / Pompey Creek Rd

Sheridan - Buffalo, Sheridan, WY

Built 1968 ADT: 27

I-90 WBL

Unknown

Over: CR 129 / Pompey Creek Rd

Sheridan - Buffalo, Sheridan, WY

Built 1968 ADT: 27

I-90 EBL

Unknown

Over: Upper Prairie Dog Road

Sheridan - Buffalo, Sheridan, WY

Built 1968 ADT: 78

I-90 WBL

Unknown

Over: Upper Prairie Dog Road

Sheridan - Buffalo, Sheridan, WY

Built 1968 ADT: 78

I-90 EBL

Unknown

Over: US 14

Montana Line - Sheridan, Sheridan, WY

Built 1982 ADT: 767

I-90 WBL

Unknown

Over: US 14

Montana Line - Sheridan, Sheridan, WY

Built 1982 ADT: 767

I-90 EBL

Unknown

Over: Sh CR 97 (Early Creek)

Montana Line - Sheridan, Sheridan, WY

Built 1982 ADT: 111

I-90 WBL

Unknown

Over: Sh CR 97 (Early Creek)

Montana Line - Sheridan, Sheridan, WY

Built 1982 ADT: 111

I-90 EBL

Unknown

Over: Sh CR 79 (Coal Bank Rd)

Montana Line - Sheridan, Sheridan, WY

Built 1982 ADT: 111

I-90 WBL

Unknown

Over: Sh CR 79 (Coal Bank Rd)

Montana Line - Sheridan, Sheridan, WY

Built 1982 ADT: 111

I-90 EBL

Unknown

Over: Sh CR 65 (Barker Road)

Montana Line - Sheridan, Sheridan, WY

Built 1983 ADT: 53

I-90 WBL

Unknown

Over: Sh CR 65 (Barker Road)

Montana Line - Sheridan, Sheridan, WY

Built 1983 ADT: 53

BNSF Railway

Unknown

Over: North Sheridan Ave

Sheridan Ave-Sheridan, Sheridan, WY

Built 1990 ADT: 5,674

Showing 401-450 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.