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.

Compiled by Plainbridges Editorial, Plain Bridges Editorial Team

3,181
Public bridges: 26.2%
Good condition: 5.4%
Poor condition: 5.4%
Structurally deficient

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 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)

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.

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 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

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

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

Sort by:

I-80 EBL

Over: CR 57 (Dutton Creek Rd)

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 81

I-80 WBL

Over: CR 57 (Dutton Creek Rd)

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 81

I-80 EBL

Over: CR 57 (Dutton Creek Rd)

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 81

I-80 WBL

Over: CR 57 (Dutton Creek Rd)

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 81

I-80 EBL

Over: Hunt Road

Rawlins - Laramie, Albany, WY

Built 1968 ADT: 622

I-80 WBL

Over: Hunt Road

Rawlins - Laramie, Albany, WY

Built 1968 ADT: 622

I-80 EBL

Over: WYO 12

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 110

I-80 WBL

Over: WYO 12

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 166

I-80 EBL

Over: Al CR 55 (Welsh Lane)

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 206

I-80 WBL

Over: Al CR 55 (Welsh Lane)

Rawlins - Laramie, Albany, WY

Built 1969 ADT: 206

I-80 EBL

Over: West Madison Drive

Laramie Marginal, Albany, WY

Built 1963 ADT: 225

I-80 WBL

Over: West Madison Drive

Laramie Marginal, Albany, WY

Built 1963 ADT: 225

15th Street

Over: I-80

Laramie Marginal, Albany, WY

Built 1962 ADT: 7,479

Vista Drive

Over: I-80

Laramie Marginal, Albany, WY

Built 1962 ADT: 6,968

I-80 EBL

Over: Buck Sullivan Springs Rd

Laramie - Cheyenne, Albany, WY

Built 1961 ADT: 272

I-80 WBL

Over: Buck Sullivan Springs Rd

Laramie - Cheyenne, Albany, WY

Built 1961 ADT: 272

I-80 EBL

Over: Blair-Wallis Road

Laramie - Cheyenne, Albany, WY

Built 1966 ADT: 188

I-80 WBL

Over: Blair-Wallis Road

Laramie - Cheyenne, Albany, WY

Built 1966 ADT: 188

I-80 EBL

Over: Monument Road

Laramie - Cheyenne, Albany, WY

Built 1965 ADT: 634

I-80 WBL

Over: Monument Road

Laramie - Cheyenne, Albany, WY

Built 1965 ADT: 128

I-80 EBL

Over: North Buford Road

Laramie - Cheyenne, Albany, WY

Built 1963 ADT: 50

I-80 WBL

Over: North Buford Road

Laramie - Cheyenne, Albany, WY

Built 1963 ADT: 50

WYO 210

Over: I-80

Laramie - Cheyenne, Albany, WY

Built 1966 ADT: 7,141

I-80 EBL On Ramp

Over: I-80

Laramie Marginal, Albany, WY

Built 1962 ADT: 6,968

I-80 EBL

Over: WYO 12

Rawlins - Laramie, Albany, WY

Built 1991 ADT: 166

I-80 WBL

Over: WYO 12

Rawlins - Laramie, Albany, WY

Built 1991 ADT: 166

I-80 EBL

Over: Snowy Range Road

Laramie Marginal, Albany, WY

Built 1997 ADT: 17,676

I-80 WBL

Over: Snowy Range Road

Laramie Marginal, Albany, WY

Built 1997 ADT: 11,768

I-80 EBL

Over: US 287

Laramie Maginal, Albany, WY

Built 1999 ADT: 9,337

I-80 WBL

Over: US 287

Laramie Marginal, Albany, WY

Built 2001 ADT: 3,248

I-80 Bus

Over: I-80

Laramie Marginal, Albany, WY

Built 2023 ADT: 9,014

I-80 EBL Off Ramp

Over: I-80

Laramie Marginal, Albany, WY

Built 1962 ADT: 7,479

BNSF Railway

Over: Lane 42C

In Town Of Basin, Big Horn, WY

Built 1950 ADT: 207

BNSF Railway

Over: Bh County Road R3C

3 Miles East Of Deaver, Big Horn, WY

Built 2019 ADT: 150

I-90 EBL

Over: Cl CR 19 (Barber Crk Rd)

Buffalo - Gillette, Campbell, WY

Built 1962 ADT: 267

I-90 WBL

Over: Barber Creek Road

Buffalo - Gillette, Campbell, WY

Built 1962 ADT: 267

I-90 EBL

Over: Cl CR 20 (Barlow Road)

Buffalo - Gillette, Campbell, WY

Built 1962 ADT: 242

I-90 WBL

Over: Cl CR 63 (Kingsbury Rd)

Buffalo - Gillette, Campbell, WY

Built 1962 ADT: 242

I-90 EBL

Over: Wild Horse Creek Road

Buffalo - Gillette, Campbell, WY

Built 1960 ADT: 646

I-90 WBL

Over: Wild Horse Creek Road

Buffalo - Gillette, Campbell, WY

Built 1960 ADT: 76

I-90 EBL

Over: Cl CR 32 (Force Road)

Buffalo - Gillette, Campbell, WY

Built 1960 ADT: 242

I-90 WBL

Over: Cl CR 32 (Force Road)

Buffalo - Gillette, Campbell, WY

Built 1960 ADT: 478

I-90 EBL

Over: WYO 50 (Skyline Drive)

Gillette Marginal, Campbell, WY

Built 1970 ADT: 11,737

I-90 WBL

Over: WYO 50 (Skyline Drive)

Gillette Marginal, Campbell, WY

Built 1970 ADT: 11,737

I-90 EBL

Over: Cl CR 40 (Grey Road)

Gillette - Moorcroft, Campbell, WY

Built 1971 ADT: 273

I-90 WBL

Over: Cl CR 40 (Grey Road)

Gillette - Moorcroft, Campbell, WY

Built 1971 ADT: 273

Cl Cnty Rd 3

Over: I-90

Gillette - Moorcroft, Campbell, WY

Built 1976 ADT: 3,644

I-90 EBL

Over: 4-J Road

Gillette Marginal, Campbell, WY

Built 1970 ADT: 9,275

I-90 WBL

Over: 4-J Road

Gillette Marginal, Campbell, WY

Built 1970 ADT: 9,275

I-90 EBL

Over: WYO 59

Gillette Marginal, Campbell, WY

Built 1971 ADT: 17,651

Showing 1-50 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.

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.