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

Pa Cnty Rd XUX

Fair

Over: Squaw Creek

50 Mi Nw Of Cody, Park, WY

Built 2000 Load: 32.7 t ADT: 42

US 14A

Fair

Over: Alkali Creek

Cody - Powell, Park, WY

Built 2005 Load: 32.7 t ADT: 5,827

US 14A

Fair

Over: Buck Creek

Cody - Powell, Park, WY

Built 2010 Load: 32.7 t ADT: 5,827

I-25 NBL

Fair

Over: BNSF Railway

Cheyenne - Chugwater, Platte, WY

Built 1969 Load: 32.7 t ADT: 3,170

I-25 SBL

Fair

Over: BNSF Railway

Cheyenne - Chugwater, Platte, WY

Built 1969 Load: 32.7 t ADT: 3,238

I-25 NBL and SBL

Fair

Over: Rock Creek

Chugwater - Wheatland, Platte, WY

Built 1975 Load: 32.7 t ADT: 3,458

I-25 NBL

Fair

Over: Machinery Pass

Cheyenne - Chugwater, Platte, WY

Built 1977 Load: 32.7 t ADT: 3,170

I-25 SBL

Fair

Over: Machinery Pass

Cheyenne - Chugwater, Platte, WY

Built 1977 Load: 32.7 t ADT: 3,238

Pl Cnty Rd 104

Fair

Over: Stewart Draw

T21N R067W S30, Platte, WY

Built 1965 Load: 32.7 t ADT: 131

Pl Cnty Rd 109S

Fair

Over: Laramie River

T26N R065W S32, Platte, WY

Built 1980 Load: 32.7 t ADT: 74

Pl Cnty Rd 41

Fair

Over: Cottonwood Creek

15 Mi. South Of Glendo, Platte, WY

Built 1970 Load: 32.7 t ADT: 131

E Oak Street

Fair

Over: Wheatland Creek

E Oak Street-Wheatland, Platte, WY

Built 1978 Load: 32.7 t ADT: 131

14th Street

Fair

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 32.7 t ADT: 131

12th Street

Fair

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 32.7 t ADT: 131

Pl Cnty Rd 59

Fair

Over: Horseshoe Creek

3 Mi. S.W. Of Glendo, Platte, WY

Built 1975 Load: 32.7 t ADT: 129

Pl Cnty Rd 59

Fair

Over: Horseshoe Creek

11 Mi. S.W. Of Glendo, Platte, WY

Built 1975 Load: 32.7 t ADT: 129

Pl Cnty Rd 133

Fair

Over: Laramie River

8 Mi. N.W. Of Wheatland, Platte, WY

Built 1989 Load: 32.7 t ADT: 50

I-90 EBL

Fair

Over: BNSF Railway

Montana Line - Sheridan, Sheridan, WY

Built 1960 Load: 32.7 t ADT: 3,688

I-90 EBL

Fair

Over: Meade Creek

Sheridan - Buffalo, Sheridan, WY

Built 1966 Load: 32.7 t ADT: 3,427

I-90 WBL

Fair

Over: Meade Creek

Sheridan - Buffalo, Sheridan, WY

Built 1966 Load: 32.7 t ADT: 3,613

US 14

Fair

Over: Whitmeyer Creek

Ucross - Jct WYO 59, Sheridan, WY

Built 1961 Load: 32.7 t ADT: 304

WYO 331

Fair

Over: Big Goose Creek

Loucks Street Sheridan, Sheridan, WY

Built 1970 Load: 32.7 t ADT: 4,744

Sh Cnty Rd 103

Fair

Over: Little Goose Creek

2.5 Miles S. Of Big Horn, Sheridan, WY

Built 1974 Load: 32.7 t ADT: 19

Sh Cnty Rd 1211

Fair

Over: Badger Creek

15 Miles N.E. Of Sheridan, Sheridan, WY

Built 1977 Load: 32.7 t ADT: 655

N Gould Street

Fair

Over: Little Goose Creek

Sheridan, Sheridan, WY

Built 1984 Load: 32.7 t ADT: 644

WYO 193

Fair

Over: South Piney Creek

Banner-Story, Sheridan, WY

Built 1986 Load: 32.7 t ADT: 557

WYO 338

Fair

Over: Ash Creek

Sheridan-Mont. Line, Sheridan, WY

Built 1989 Load: 32.7 t ADT: 913

US 14

Fair

Over: Five Mile Creek

Dayton-Ranchester, Sheridan, WY

Built 1960 Load: 32.7 t ADT: 4,781

WYO 336

Fair

Over: Negro Draw

Sheridan-Ulm, Sheridan, WY

Built 1995 Load: 32.7 t ADT: 189

Sh Cnty Rd 114

Fair

Over: Prairie Dog Creek

Coutant Creek Rd, Sheridan, WY

Built 1992 Load: 32.7 t ADT: 76

US 14

Fair

Over: Donkey Creek

Ucross-Clearmont, Sheridan, WY

Built 1980 Load: 32.7 t ADT: 829

WYO 341

Fair

Over: Deadman Creek

1 mi north of Arvada, Sheridan, WY

Built 1980 Load: 32.7 t ADT: 353

Sh Cnty Rd 1260

Fair

Over: Tongue River

Acme Interchange, Sheridan, WY

Built 1992 Load: 32.7 t ADT: 68

US 14

Fair

Over: Dead Mans Draw

Sheridan-Gillette, Sheridan, WY

Built 2000 Load: 32.7 t ADT: 304

US 191

Fair

Over: Muddy Creek

Daniel Jct - Hoback Jct, Sublette, WY

Built 1951 Load: 32.7 t ADT: 1,868

US 191

Fair

Over: Cliff Creek

Daniel Jct _ Hoback Jct, Sublette, WY

Built 1965 Load: 32.7 t ADT: 2,444

Sb Cnty Rd 144

Fair

Over: New Fork River

4.5 Mi. N.W. Of Pinedale, Sublette, WY

Built 1963 Load: 32.7 t ADT: 1,224

Sb Cnty Rd 123

Fair

Over: Pine Creek

0.5 Miles S. Of Pinedale, Sublette, WY

Built 1988 Load: 32.7 t ADT: 840

Sb Cnty Rd 123

Fair

Over: Pine Creek Overflow

1 Mi. South Of Pinedale, Sublette, WY

Built 1988 Load: 32.7 t ADT: 840

US 189

Fair

Over: Unnamed Draw

Kemmerer-Big Piney, Sublette, WY

Built 1987 Load: 32.7 t ADT: 814

US 189

Fair

Over: Muddy Creek

9 Miles N Of Marbleton, Sublette, WY

Built 2000 Load: 32.7 t ADT: 1,261

I-80 EBL

Fair

Over: UPRR

Evanston - Green River, Sweetwater, WY

Built 1966 Load: 32.7 t ADT: 7,490

I-80 WBL

Fair

Over: UPRR

Evanston - Green River, Sweetwater, WY

Built 1966 Load: 32.7 t ADT: 7,705

I-80 EBL and WBL

Fair

Over: Alkali Flat

Rock Springs Marginal, Sweetwater, WY

Built 1964 Load: 32.7 t ADT: 10,492

I-80 Service Road

Fair

Over: Alkali Flat

Rock Springs, Sunset Dr, Sweetwater, WY

Built 1953 Load: 32.7 t ADT: 1,834

I-80 EBL

Fair

Over: Piker Springs Creek

Rock Springs - Rawlins, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6,603

I-80 WBL

Fair

Over: Piker Springs Creek

Rock Springs - Rawlins, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6,639

I-80 EBL

Fair

Over: Filmore Creek

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 32.7 t ADT: 6,618

WYO 374

Fair

Over: Unnamed Draw

Jct I-80 - Green River, Sweetwater, WY

Built 1946 Load: 32.7 t ADT: 558

WYO 430

Fair

Over: Salt Wells Creek

Rock Springs - Colo Line, Sweetwater, WY

Built 1958 Load: 32.7 t ADT: 316

Showing 1,501-1,550 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.