State profile · Below median Poor share

Wyoming bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Wyoming, based on the FHWA National Bridge Inventory.

3,181
Public bridges
26.2%
Good condition
5.4%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 18.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Wyoming32%61.4%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Wyoming on the same metric.

IN

Indiana

4.94% top marginal rate
Structure
Progressive
Burden @ $100K
$18,630

KS

Kansas

5.25% top marginal rate
Structure
Progressive
Burden @ $100K
$23,867
Selected

WY

Wyoming

5.41% top marginal rate
Structure
Progressive
Burden @ $100K
$3,181

ID

Idaho

5.51% top marginal rate
Structure
Progressive
Burden @ $100K
$1,742

MS

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

FIREHOLE LAKE DRIV

Poor

Over: THERMAL AREA DRAINAGE

10 +/- MI. SOUTH OF MADIS, Teton, WY

Built 1935 Load: 3.6 t ADT: 1,500

Sb Cnty Rd 175

Poor

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

Poor

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

Poor

Over: Tongue River

7 Mi Nw Of Sheridan, Sheridan, WY

Built 1903 Load: 5.5 t ADT: 179

All Bridges in Wyoming

US 16

Poor

Over: E Branch Wind Creek

Moorcroft - Upton, Weston, WY

Built 1966 Load: 32.7 t ADT: 1,326

Co Cnty Rd 22

Poor

Over: North Platte River

5 Miles West Of Glenrock, Converse, WY

Built 1992 Load: 33.3 t ADT: 85

Broadway Street

Poor

Over: Big Horn River

Thermopolis, Hot Springs, WY

Built 1968 Load: 33.3 t ADT: 1,685

US 14A

Poor

Over: Sand Draw

Lovell - Burgess Jct, Big Horn, WY

Built 1975 Load: 33.6 t ADT: 1,557

WYO 450

Poor

Over: BNSF Railway

Newcastle - Jct WYO 59, Campbell, WY

Built 1980 Load: 33.6 t ADT: 1,476

S 6th Street

Poor

Over: UPRR

6Th Street Rawlins, Carbon, WY

Built 1966 Load: 33.6 t ADT: 1,984

Cb Cnty Rd 1

Poor

Over: Medicine Bow River

4 Mi. S. Of Medicine Bow, Carbon, WY

Built 1982 Load: 33.6 t ADT: 82

I-180 NBL

Poor

Over: UPRR

Cheyenne, Central Ave, Laramie, WY

Built 1982 Load: 33.6 t ADT: 9,268

Sb Cnty Rd 141

Poor

Over: Piney Creek

T30N R112W S36, Sublette, WY

Built 1986 Load: 33.6 t ADT: 129

Cr Cnty Rd 112

Poor

Over: Donkey Creek

7 Miles W. Of Moorcroft, Crook, WY

Built 1980 Load: 33.9 t ADT: 22

Sb Cnty Rd 136

Poor

Over: New Fork River

2 Mi. Nw Of Boulder, Sublette, WY

Built 1989 Load: 34.2 t ADT: 260

Cb Cnty Rd 603

Poor

Over: Four Mile Creek

3.5 Mi South Of Baggs, Carbon, WY

Built 1991 Load: 34.5 t ADT: 43

US 191

Poor

Over: Hoback River

Daniel Jct - Hoback Jct, Teton, WY

Built 1966 Load: 34.5 t ADT: 2,444

US 30

Poor

Over: Floodwater Creek

Bosler Jct - Laramie, Albany, WY

Built 1946 Load: 35.4 t ADT: 1,510

US 18

Poor

Over: Lost Creek

Orin Jct - Lusk, Converse, WY

Built 1964 Load: 35.4 t ADT: 2,101

WEST ENTRANCE ROAD

Poor

Over: MADISON RIVER

7.4 MILES EAST OF WEST EN, Teton, WY

Built 1958 Load: 35.4 t ADT: 2,525

I-25 SBL

Poor

Over: South Fork Powder River

Casper - Kaycee, Johnson, WY

Built 1960 Load: 35.9 t ADT: 1,439

I-90 WBL

Poor

Over: Machinery Pass

Montana Line - Sheridan, Sheridan, WY

Built 1983 Load: 36.3 t ADT: 2,076

WYO 376

Poor

Over: UPRR / Bitter Creek

Rock Springs Circumferent, Sweetwater, WY

Built 1981 Load: 36.3 t ADT: 2,593

W 11th Street

Poor

Over: Big Goose Creek

Sheridan Streets, Sheridan, WY

Built 1981 Load: 36.9 t ADT: 1,752

WYO 28

Poor

Over: Green River

Farson-Fontenelle Road, Sweetwater, WY

Built 1985 Load: 37.2 t ADT: 548

Ui Cnty Rd 241

Poor

Over: Smiths Fork Creek

2 Mi. E. Of Mountain View, Uinta, WY

Built 1983 Load: 38.1 t ADT: 181

WYO 220

Poor

Over: Casper Canal

Muddy Gap Jct-WYO 487 Jct, Natrona, WY

Built 1967 Load: 39.0 t ADT: 3,066

WYO 530 SBL

Poor

Over: Green River

Green River, Sweetwater, WY

Built 1982 Load: 39.0 t ADT: 9,754

Cb Cnty Rd 402

Poor

Over: Rock Creek

Arlington, Carbon, WY

Built 1985 Load: 41.7 t ADT: 52

W Richards Street

Poor

Over: North Platte River

Richards Street (Douglas), Converse, WY

Built 1984 Load: 42.1 t ADT: 5,005

Sb Cnty Rd 123

Poor

Over: New Fork River

2 Iles South Of Pinedale, Sublette, WY

Built 1995 Load: 42.3 t ADT: 840

I-80 Bus

Poor

Over: UPRR

Evanston Streets, Uinta, WY

Built 1984 Load: 45.4 t ADT: 5,995

Te Cnty Rd 2

Poor

Over: Mosquito Creek

T40N R117W S10, Teton, WY

Built 1955 Load: 46.3 t ADT: 877

Converse Avenue

Poor

Over: Dry Creek

Converse Avenue, Laramie, WY

Built 1992 Load: 47.0 t ADT: 9,543

N 2nd Street

Poor

Over: Antelope Creek

T32N R071W S09, Converse, WY

Built 1985 Load: 57.2 t ADT: 398

Showing 3,151-3,181 of 3,181 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.