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

WYO 191

Good

Over: Unnamed Draw

Kaycee-Mayoworth, Johnson, WY

Built 1971 Load: 32.7 t ADT: 491

I-90 EBL

Good

Over: Middle Fork Shell Creek

Sheridan - Buffalo, Johnson, WY

Built 2001 Load: 32.7 t ADT: 3,533

I-90 WBL

Good

Over: Middle Fork Shell Creek

Sheridan - Buffalo, Johnson, WY

Built 2001 Load: 32.7 t ADT: 3,700

I-25 NBL and SBL

Good

Over: Duck Creek

Colorado Line - Cheyenne, Laramie, WY

Built 1963 Load: 32.7 t ADT: 9,466

US 85

Good

Over: Little Horse Creek

Cheyenne - Torrington, Laramie, WY

Built 1967 Load: 32.7 t ADT: 2,775

WYO 210

Good

Over: Unnamed Draw

Cheyenne - Jct I-80, Laramie, WY

Built 1962 Load: 32.7 t ADT: 2,438

WYO 212

Good

Over: Henderson Drainage Ditch

College Drive Cheyenne, Laramie, WY

Built 1977 Load: 32.7 t ADT: 28,658

La Cnty Rd 232-1

Good

Over: Horse Creek

36 Miles N. Of Cheyenne, Laramie, WY

Built 1960 Load: 32.7 t ADT: 79

WYO 215

Good

Over: Unnamed Draw

1.5 Mi S Of Albin, Laramie, WY

Built 1942 Load: 32.7 t ADT: 639

WYO 215

Good

Over: Unnamed Draw

Albin-Pine Bluffs, Laramie, WY

Built 1994 Load: 32.7 t ADT: 639

La Cnty Rd 127-1

Good

Over: Childs Draw

Ridge Road, Laramie, WY

Built 1996 Load: 32.7 t ADT: 1,295

La Cnty Rd 127-1

Good

Over: Unnamed Draw

Ridge Road, Laramie, WY

Built 1996 Load: 32.7 t ADT: 938

WYO 212

Good

Over: Allison Draw

Cheyenne Drainage, Laramie, WY

Built 1997 Load: 32.7 t ADT: 7,590

La Cnty Rd 143-2

Good

Over: Childs Creek

Hillsdale Road - Childs, Laramie, WY

Built 1998 Load: 32.7 t ADT: 278

Old WYO 213

Good

Over: Unnamed Draw

Burns Road, Laramie, WY

Built 1999 Load: 32.7 t ADT: 1,287

E 1st Street

Good

Over: Crow Creek

Cheyenne, Laramie, WY

Built 1999 Load: 32.7 t ADT: 2,385

La Cnty Rd 848

Good

Over: Crow Creek

10 Mi Se Of Cheyenne, Laramie, WY

Built 2001 Load: 32.7 t ADT: 79

La Cnty Rd 124-2

Good

Over: Nine Mile Draw

5 Miles North Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 1,104

La Cnty Rd 124-2

Good

Over: Lodgepole Creek Trib

6.6 Mi North Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 1,104

La Cnty Rd 124-2

Good

Over: Lodgepole Creek Trib

8 Mi N Of Cheyenne, Laramie, WY

Built 2008 Load: 32.7 t ADT: 474

La Cnty Rd 769

Good

Over: Allison Draw

Cheyenne Streets, Laramie, WY

Built 2009 Load: 32.7 t ADT: 201

La Cnty Rd 451

Good

Over: Allison Draw

Cheyenne, Laramie, WY

Built 2009 Load: 32.7 t ADT: 201

WYO 211

Good

Over: Unnamed Draw

Cheyenne - Chugwater, Laramie, WY

Built 2018 Load: 32.7 t ADT: 135

US 85

Good

Over: Chivington Draw

Cheyenne - Torringon, Laramie, WY

Built 2019 Load: 32.7 t ADT: 2,317

La Cnty Rd 139

Good

Over: Chivington Draw

Cheyenne - Torringon, Laramie, WY

Built 2019 Load: 32.7 t ADT: 79

US 30

Good

Over: Sublette Creek

Border Jct - Sage Jct, Lincoln, WY

Built 1951 Load: 32.7 t ADT: 1,905

US 30

Good

Over: Wildlife Crossing

1 Mile East Of Sage Jct, Lincoln, WY

Built 2001 Load: 32.7 t ADT: 1,406

US 30

Good

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

US 30

Good

Over: Wildlife Crossing

Sage Junction - Kemmerer, Lincoln, WY

Built 2008 Load: 32.7 t ADT: 1,406

I-25 NBL

Good

Over: Dry Muddy Creek

Douglas - Casper, Natrona, WY

Built 1966 Load: 32.7 t ADT: 4,193

I-25 SBL

Good

Over: Dry Muddy Creek

Douglas - Casper, Natrona, WY

Built 1966 Load: 32.7 t ADT: 4,702

WYO 487

Good

Over: Little Red Creek

Medicine Bow - Jt WYO 220, Natrona, WY

Built 1984 Load: 32.7 t ADT: 832

Na Cnty Rd 319

Good

Over: Casper Canal

14 Miles E. Of Casper, Natrona, WY

Built 1992 Load: 32.7 t ADT: 6

Na Cnty Rd 319

Good

Over: Casper Canal

15 Miles East Of Casper, Natrona, WY

Built 1998 Load: 32.7 t ADT: 6

E 2nd Street

Good

Over: Elkhorn Creek

Casper Streets, Natrona, WY

Built 2003 Load: 32.7 t ADT: 11,792

E 2nd Street

Good

Over: Claude Creek

East Casper, Natrona, WY

Built 2004 Load: 32.7 t ADT: 11,792

Na Cnty Rd 305

Good

Over: Unnamed Draw

Casper, Natrona, WY

Built 2015 Load: 32.7 t ADT: 5,027

Daley Street

Good

Over: Niobrara River

Lusk, Niobrara, WY

Built 1986 Load: 32.7 t ADT: 340

US 85

Good

Over: Bobcat Creek

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1991 Load: 32.7 t ADT: 1,079

US 18

Good

Over: Stockpass

Orin Jct-Lusk, Niobrara, WY

Built 1970 Load: 32.7 t ADT: 2,387

WYO 270

Good

Over: Unnamed Draw

Manville South, Niobrara, WY

Built 1956 Load: 32.7 t ADT: 275

FDR

Good

Over: LITTLE SUNLIGHT CREEK

NO DATA ENTERED, Park, WY

Built 1973 Load: 32.7 t ADT: 50

Pa Cnty Rd 1AB

Good

Over: State Ditch

5 Miles S.E. Of Clark, Park, WY

Built 1960 Load: 32.7 t ADT: 206

Pa Cnty Rd 1AB

Good

Over: Bennett Creek

3 Miles S.E. Of Clark, Park, WY

Built 1960 Load: 32.7 t ADT: 206

Pa Cnty Rd R4H

Good

Over: Bitter Creek

0.4 Miles W. Of Garland, Park, WY

Built 1967 Load: 32.7 t ADT: 106

WYO 295

Good

Over: Frannie Canal

Powell-Elk Basin, Park, WY

Built 1983 Load: 32.7 t ADT: 166

Pa Cnty Rd R10A

Good

Over: Frannie Canal

5.5 Mi. N. Of Powell, Park, WY

Built 1972 Load: 32.7 t ADT: 384

WYO 294

Good

Over: W Fork Big Sand Coulee

P-32 - P-33 Connector, Park, WY

Built 1961 Load: 32.7 t ADT: 792

WYO 294

Good

Over: Unnamed Draw

P-32 - P-33 Connector, Park, WY

Built 1961 Load: 32.7 t ADT: 792

WYO 295

Good

Over: Willwood Draw

Powell-Woodwood Road, Park, WY

Built 1987 Load: 32.7 t ADT: 1,151

Showing 2,551-2,600 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.