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

FR 10002

Poor

Over: MURPHY CREEK

11 MI. SE. OF ALPINE, Lincoln, WY

Built 1980 Load: 14.3 t ADT: 50

FR 10002

Poor

Over: MURPHY CREEK

12 MI. SE. OF ALPINE, Lincoln, WY

Built 1980 Load: 14.3 t ADT: 50

FOREST ROAD 10299

Poor

Over: DUTCH JOE CREEK

NO DATA ENTERED, Sublette, WY

Built 1956 Load: 14.3 t ADT: 50

Co Cnty Rd 27

Poor

Over: Little Sand Creek

Appx 9 Mi E. Of Glenrock, Converse, WY

Built 1991 Load: 14.4 t ADT: 147

WYO 435

Poor

Over: Tensleep Creek

Jct Us 16 - East, Washakie, WY

Built 1929 Load: 14.7 t ADT: 164

FOREST ROAD 30460

Poor

Over: HOBACK RIVER

20 MI. SE. OF JACKSON WY, Teton, WY

Built 1965 Load: 14.9 t ADT: 50

Co Cnty Rd 17

Poor

Over: Boxelder Creek

14 Miles S.E. Of Glenrock, Converse, WY

Built 1965 Load: 15.1 t ADT: 181

10th Street

Poor

Over: Canal No 2

Wheatland, Platte, WY

Built 1930 Load: 15.4 t ADT: 131

Fr Cnty Rd 314

Poor

Over: Big Wind River

20 Mi Se Of Dubois, Fremont, WY

Built 1920 Load: 15.7 t ADT: 39

Co Cnty Rd 14

Poor

Over: Laprele Creek

15 Miles S.W. Of Douglas, Converse, WY

Built 1965 Load: 17.0 t ADT: 42

Bull Lake Road

Poor

Over: Bull Lake Dam Spillway

36 mi W-NW of Riverton, Fremont, WY

Built 1938 Load: 17.1 t ADT: 5

Fr Cnty Rd 497

Poor

Over: Haymaker Draw

2.5 Miles Ne Of Riverton, Fremont, WY

Built 1921 Load: 17.2 t ADT: 139

WYO 314

Poor

Over: Chugwater Creek

Jct I-25 - East, Platte, WY

Built 1949 Load: 17.3 t ADT: 95

Bh Cnty Rd L55

Poor

Over: Big Horn River

6 Miles S. Of Manderson, Big Horn, WY

Built 1930 Load: 18.3 t ADT: 87

FOREST ROAD 10138

Poor

Over: GREYS RIVER

3 MI. EAST OF ALPINE WY., Lincoln, WY

Built 1954 Load: 18.8 t ADT: 600

NORTHEAST ENTRANCE

Poor

Over: YELLOWSTONE RIVER

0.64 MI. EAST OF TOWER JC, Park, WY

Built 1961 Load: 19.0 t ADT: 1,982

Bh Cnty Rd 72

Poor

Over: Shoshone River

2 Miles West Of Lovell, Big Horn, WY

Built 1926 Load: 20.2 t ADT: 117

IRR BIA RTE 101

Poor

Over: SHOTGUN CREEK

15.3 KM SE OF MAIL CAMP, Fremont, WY

Built 1951 Load: 20.2 t ADT: 30

We Cnty Rd 1A

Poor

Over: BNSF Railway

T44N R061W S10, Weston, WY

Built 1929 Load: 20.6 t ADT: 136

WYO 211

Poor

Over: M Fork Lodgepole Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 21.2 t ADT: 135

Co Cnty Rd 17

Poor

Over: Virden Creek

22 Mi. E.S.E. Of Douglas, Converse, WY

Built 1965 Load: 21.8 t ADT: 181

ROAD

Poor

Over: DARBY CREEK

NO DATA ENTERED, Teton, WY

Built 1960 Load: 22.0 t ADT: 50

I-80 Service Road

Poor

Over: North Platte River

Fort Steele Rest Area, Carbon, WY

Built 1930 Load: 22.2 t ADT: 265

FOREST ROAD 10389

Poor

Over: NORTH HORSE CREEK

22 MI. W. OF DANIEL JCT., Sublette, WY

Built 1959 Load: 23.0 t ADT: 50

Bh Cnty Rd L31

Poor

Over: Shell Creek

0.5 Miles N. Of Shell, Big Horn, WY

Built 1950 Load: 23.2 t ADT: 31

Hayden Arch Road

Poor

Over: Shoshone River

4.5 mi W-SW of Cody WY, Park, WY

Built 1924 Load: 23.4 t ADT: 100

I-25 Service Road

Poor

Over: BNSF Railway

Cheyenne - Chugwater, Platte, WY

Built 1935 Load: 23.5 t ADT: 86

Cb Cnty Rd 660

Poor

Over: North Platte River

12 Mi. E. Of Riverside, Carbon, WY

Built 1915 Load: 23.6 t ADT: 68

Pa Cnty Rd L9A

Poor

Over: Bitter Creek

3.75 Mi. S.E. Of Garland, Park, WY

Built 1937 Load: 23.6 t ADT: 1,488

N Brooks Street

Poor

Over: Little Goose Creek

Val Vista Lane St., Sheridan, WY

Built 1970 Load: 23.6 t ADT: 4,611

SOUTH ENTRANCE ROA

Poor

Over: UNNAMED CREEK

0.5 MI. SOUTH OF WEST THU, Teton, WY

Built 1972 Load: 23.6 t ADT: 1,598

FOREST ROAD 30900

Poor

Over: SOUTH FORK FISH CREEK

NO DATA ENTERED, Teton, WY

Built 1966 Load: 23.7 t ADT: 50

WYO 94

Poor

Over: Wagonhound Creek

Douglas - South, Converse, WY

Built 1960 Load: 24.1 t ADT: 122

Culbertson Avenue

Poor

Over: Big Horn River

Worland, Washakie, WY

Built 1934 Load: 24.1 t ADT: 1,042

Fr Cnty Rd 412

Poor

Over: Pilot Canal

3 Miles E. Of Kinnear, Fremont, WY

Built 1970 Load: 24.5 t ADT: 149

Pa Cnty Rd 1WAW

Poor

Over: Polecat Creek

Approx 6 Mi N. Of Garland, Park, WY

Built 1970 Load: 24.5 t ADT: 128

Fr Cnty Rd 277

Poor

Over: Wiggins F E Wind River

T41N R105W S04, Fremont, WY

Built 1930 Load: 25.0 t ADT: 129

Pa Cnty Rd R6A

Poor

Over: Bitter Creek

3 Miles N.E. Of Powell, Park, WY

Built 1966 Load: 25.2 t ADT: 327

Ui Cnty Rd 218

Poor

Over: Blacks Fork Canal

2 Mi. Nw Of Mountain View, Uinta, WY

Built 1986 Load: 26.1 t ADT: 71

GRAND LOOP ROAD

Poor

Over: OTTER CREEK

2.5 MI. SOUTH OF CANYON J, Teton, WY

Built 1934 Load: 26.3 t ADT: 1,807

WYO 22

Poor

Over: Fish Creek

Jackson - Idaho Line, Teton, WY

Built 1949 Load: 26.3 t ADT: 17,430

I-25 SBL

Poor

Over: Richeau Creek

Chugwater - Wheatland, Platte, WY

Built 1958 Load: 26.5 t ADT: 3,173

18th Street

Poor

Over: Canal No 2

Wheatland, Platte, WY

Built 1978 Load: 27.0 t ADT: 131

Ni Cnty Rd 9

Poor

Over: Cheyenne River

6 Mi. N.E.Of Mule Crk Jct, Niobrara, WY

Built 1920 Load: 27.1 t ADT: 5

Pl Cnty Rd 275

Poor

Over: Wheatland Creek

North Road - Wheatland, Platte, WY

Built 1975 Load: 27.1 t ADT: 366

Sh Cnty Rd 103

Poor

Over: Little Goose Creek

T54N R084W S09, Sheridan, WY

Built 1961 Load: 27.1 t ADT: 19

WYO 211

Poor

Over: S Fork Lodgepole Creek

Cheyenne - Chugwater, Laramie, WY

Built 1955 Load: 27.2 t ADT: 135

GRAND LOOP ROAD

Poor

Over: RAVINE

4.5 MI. SOUTH OF MAMMOTH, Park, WY

Built 1977 Load: 27.2 t ADT: 1,807

Sw Cnty Rd 5

Poor

Over: Big Sandy River

17 Mi. S.W. Of Farson, Sweetwater, WY

Built 1960 Load: 27.2 t ADT: 9

WYO 374

Poor

Over: Green River

Jct I-80 - Green River, Sweetwater, WY

Built 1952 Load: 27.4 t ADT: 2,369

Showing 3,051-3,100 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.