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

Good

Over: Unnamed Draw

Laramie - Cheyenne, Albany, WY

Built 1946 Load: 32.7 t ADT: 7,141

E Garfield Street

Good

Over: Spring Creek

Garfield St 30Th-45Th St, Albany, WY

Built 1996 Load: 32.7 t ADT: 4,958

Al Cnty Rd 519

Good

Over: Lil Laramie Riv Overflow

12 Miles NE Of Centennial, Albany, WY

Built 2001 Load: 32.7 t ADT: 34

Al Cnty Rd 710

Good

Over: North Laramie River

42 Mi N.E. Of Rock River, Albany, WY

Built 2002 Load: 32.7 t ADT: 17

S 30th Street

Good

Over: Spring Creek

Laramie, Albany, WY

Built 2014 Load: 32.7 t ADT: 4,287

US 14

Good

Over: Dry Creek

Greybull - Jct WYO 310, Big Horn, WY

Built 1961 Load: 32.7 t ADT: 5,063

Bh Cnty Rd R9A

Good

Over: Sage Creek

2 Miles W. Of Lovell, Big Horn, WY

Built 1986 Load: 32.7 t ADT: 187

US 16

Good

Over: Big Horn Canal

Basin-Manderson, Big Horn, WY

Built 1956 Load: 32.7 t ADT: 2,122

US 310

Good

Over: East Fork Sand Draw

Greybull-Lovell, Big Horn, WY

Built 1963 Load: 32.7 t ADT: 1,207

Bh Cnty Rd R27

Good

Over: Shell Creek

2 Miles N. Of Greybull, Big Horn, WY

Built 1995 Load: 32.7 t ADT: 117

WYO 59

Good

Over: Antelope Butte Creek

Reno Jct - Gillette, Campbell, WY

Built 1975 Load: 32.7 t ADT: 19,381

WYO 59

Good

Over: Unnamed Draw

Gillette - Mont Line, Campbell, WY

Built 1951 Load: 32.7 t ADT: 994

WYO 59

Good

Over: Unnamed Draw

Gillette - Mont Line, Campbell, WY

Built 1954 Load: 32.7 t ADT: 543

I-90 WBL On Ramp

Good

Over: Unnamed Draw

Gillette - Moorcroft, Campbell, WY

Built 1976 Load: 32.7 t ADT: 507

WYO 59

Good

Over: Dry Fork Creek

Gillette-Montana, Campbell, WY

Built 1992 Load: 32.7 t ADT: 1,333

WYO 51

Good

Over: Unnamed Draw

Gillette-Moorcroft, Campbell, WY

Built 1952 Load: 32.7 t ADT: 1,452

Cl Cnty Rd 4

Good

Over: Triton Coal Rr Spur

14 Mi Se Of Wright, Campbell, WY

Built 1998 Load: 32.7 t ADT: 916

Enzi Drive

Good

Over: Donkey Creek

1 Mi South Of Gillette, Campbell, WY

Built 1997 Load: 32.7 t ADT: 10,448

Cl Cnty Rd 38N

Good

Over: Stonepile Creek

Se Gillette, Campbell, WY

Built 1999 Load: 32.7 t ADT: 5,818

WYO 59

Good

Over: Homestead Trickle

P-43 Gillette St/Douglas, Campbell, WY

Built 2008 Load: 32.7 t ADT: 18,038

Cl Cnty Rd 90

Good

Over: Donkey Creek

3 Mi East Of Rozet, Campbell, WY

Built 2009 Load: 32.7 t ADT: 150

WYO 59

Good

Over: Tisdale Creek

Douglas - Gillette, Campbell, WY

Built 2011 Load: 32.7 t ADT: 5,962

Cl Cnty Rd 94

Good

Over: Donkey Creek

13 Miles E Of Gillette, Campbell, WY

Built 2010 Load: 32.7 t ADT: 98

Shoshone Avenue

Good

Over: Donkey Creek

Gillette, Shoshone Ave, Campbell, WY

Built 2007 Load: 32.7 t ADT: 5,072

WYO 50

Good

Over: Donkey Creek

Gillette Streets, Campbell, WY

Built 2019 Load: 32.7 t ADT: 10,378

WYO 450

Good

Over: N Prong Lttle Thunder Cr

10.5 Mi. SW of Wright, Campbell, WY

Built 1978 Load: 32.7 t ADT: 1,476

NFSR 105

Good

Over: TURPIN CREEK

0.02 MI. E OF NFSR 100, Carbon, WY

Built 1986 Load: 32.7 t ADT: 21

US 30

Good

Over: First Sand Creek

Walcott Jt - Medicine Bow, Carbon, WY

Built 1942 Load: 32.7 t ADT: 452

WYO 230

Good

Over: Cow Creek

Saratoga - Colo Line, Carbon, WY

Built 1963 Load: 32.7 t ADT: 1,304

WYO 70

Good

Over: Cottonwood Creek

Baggs - Riverside, Carbon, WY

Built 1948 Load: 32.7 t ADT: 613

WYO 72

Good

Over: Slough Creek

I-80 to Elk Mountain, Carbon, WY

Built 1975 Load: 32.7 t ADT: 365

Cb Cnty Rd 320

Good

Over: Sand Creek

13 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1985 Load: 32.7 t ADT: 11

WYO 487

Good

Over: Sand Creek

Medicine Bow-Casper, Carbon, WY

Built 1985 Load: 32.7 t ADT: 546

WYO 230

Good

Over: Big Creek

Riverside-Colorado Line, Carbon, WY

Built 1988 Load: 32.7 t ADT: 478

WYO 789

Good

Over: Robbers Gulch

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 789

Good

Over: Little Robbers Gulch

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 70

Good

Over: Savery Creek

Baggs - Encampment, Carbon, WY

Built 1997 Load: 32.7 t ADT: 613

WYO 130

Good

Over: Elk Hollow Creek

Snowy Range Road, Carbon, WY

Built 2002 Load: 32.7 t ADT: 741

WYO 72

Good

Over: Unnamed Draw

Hanna - Elk Mountain, Carbon, WY

Built 2009 Load: 32.7 t ADT: 176

WYO 789

Good

Over: Wildlife Crossing

Creston Jct - Baggs, Carbon, WY

Built 2009 Load: 32.7 t ADT: 1,793

Cb Cnty Rd 401

Good

Over: Sage Creek

25 Mi S Of Rawlins, Carbon, WY

Built 2010 Load: 32.7 t ADT: 71

Cb Cnty Rd 401

Good

Over: Little Sage Creek

21 Mi S Of Rawlins, Carbon, WY

Built 2010 Load: 32.7 t ADT: 355

WYO 789

Good

Over: Wildlife Crossing

Creston Jct - Baggs, Carbon, WY

Built 2012 Load: 32.7 t ADT: 1,793

WYO 130

Good

Over: South Brush Creek

12.58 Mi. E. 130, 230 Jct, Carbon, WY

Built 2012 Load: 32.7 t ADT: 723

US 18

Good

Over: Fero Draw

Orin Jct - Lusk, Converse, WY

Built 1962 Load: 32.7 t ADT: 2,101

US 18

Good

Over: Fero Draw

Orin Jct - Lusk, Converse, WY

Built 1962 Load: 32.7 t ADT: 2,101

US 20/26/87

Good

Over: Middle Fork Dry Creek

Jct I-25 - Glenrock, Converse, WY

Built 1964 Load: 32.7 t ADT: 1,254

WYO 319

Good

Over: Valley Ditch

Glendo-Orin Road, Converse, WY

Built 1984 Load: 32.7 t ADT: 295

I-25 NBL and SBL

Good

Over: Sand Creek

Glendo - Douglas, Converse, WY

Built 2000 Load: 32.7 t ADT: 3,990

Co Cnty Rd 37

Good

Over: BNSF Railway

20 Mi North Of Bill, Converse, WY

Built 1993 Load: 32.7 t ADT: 807

Showing 2,451-2,500 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.