State profile · Near national median SD

Wisconsin bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Wisconsin — drawn straight from the FHWA National Bridge Inventory.

14,851
Public bridges
41.3%
Good condition
6.1%
Poor condition
6.1%
Structurally deficient

Total Bridges

14,851

Public highway bridges in Wisconsin

Good Condition

41.3%

6,130 bridges rated 7-9

-8.7pp vs 50% benchmark

Poor Condition

6.1%

911 bridges rated 0-4

Structurally Deficient

6.1%

911 bridges flagged for repair priority

-0.9pp vs national avg 7.0%

Wisconsin vs national bridge condition

Wisconsin — Good condition share 41.3%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Wisconsin — Structurally deficient share 20.4%
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 — Wisconsin (FHWA NBI)

Wisconsin41.2766817049357%33.10214800350145%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Wisconsin (FHWA NBI)

Counties (72)

Adams 43 Ashland 92 Barron 321 Bayfield 103 Brown 478 Buffalo 239 Burnett 68 Calumet 63 Chippewa 366 Clark 297 Columbia 191 Crawford 212 Dane 624 Dodge 219 Door 32 Douglas 143 Dunn 252 Eau Claire 242 Florence 20 Fond du Lac 256 Forest 54 Grant 385 Green 249 Green Lake 50 Iowa 212 Iron 52 Jackson 220 Jefferson 186 Juneau 174 Kenosha 121 Kewaunee 93 La Crosse 250 Lafayette 217 Langlade 78 Lincoln 158 Manitowoc 272 Marathon 534 Marinette 136 Marquette 85 Menominee 25 Milwaukee 1005 Monroe 385 Oconto 149 Oneida 64 Outagamie 300 Ozaukee 107 Pepin 57 Pierce 248 Polk 77 Portage 192 Price 104 Racine 143 Richland 298 Rock 325 Rusk 152 Sauk 277 Sawyer 98 Shawano 162 Sheboygan 249 St. Croix 308 Taylor 176 Trempealeau 260 Vernon 333 Vilas 29 Walworth 209 Washburn 54 Washington 166 Waukesha 380 Waupaca 172 Waushara 54 Winnebago 264 Wood 242

Wisconsin 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 Wisconsin on the same metric.

28

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

45

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396
Selected

55

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

37

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

15

Hawaii

6.47% top marginal rate
Structure
Progressive
Burden @ $100K
$1,206

Bridges Needing Most Attention in Wisconsin

Six lowest-condition bridges in Wisconsin, ranked by composite NBI rating. Each is inspected at least every 24 months.

LRD MARKET RD

Poor

Over: BEAR CREEK

1.2M N JCT STH 76, Outagamie, WI

Built 1958 Load: 1.6 t ADT: 1,175

LRD WOODFORD DR

Poor

Over: RAILS TO TRAILS TRAIL

0.3M E JCT USH 45, Washington, WI

Built 1910 Load: 1.6 t ADT: 47

LRD ACCESS RD

Poor

Over: MENASHA CHANNEL

ACCESS TO PARKING LOT BY, Winnebago, WI

Built 1960 Load: 1.6 t ADT: 20

CTH A

Structurally Deficient

Over: UNION PACIFIC RR

1.0M W JCT STH 73, Columbia, WI

Built 1910 Load: 3.2 t ADT: 197

LRD OLD 64 (DEAD E

Structurally Deficient

Over: EVERGREEN CREEK

0.1M N JCT STH 64, Langlade, WI

Built 1916 Load: 3.2 t ADT: 6

LRD CORNELL LANE (

Structurally Deficient

Over: BR COON CREEK

0.1M E JCT USH 14, Vernon, WI

Built 1985 Load: 3.2 t ADT: 10

All Bridges in Wisconsin

LRD GREENBUSH RD

Good

Over: SYLVESTER CREEK

0.7M W JCT CTH SS, Green, WI

Built 2006 Load: 34.0 t ADT: 530

CTH S

Good

Over: SYLVESTER CREEK

0.5M S JCT CTH SS, Green, WI

Built 2005 Load: 34.0 t ADT: 710

LRD N MILL RD

Good

Over: OK CREEK

1.5M E JCT CTH OK, Green, WI

Built 2006 Load: 34.0 t ADT: 104

LRD BERLIN RD

Good

Over: PUCHYAN RIVER

0.4M W JCT STH 49, Green Lake, WI

Built 2001 Load: 34.0 t ADT: 268

CTH A

Good

Over: PECATONICA RIVER

3.2M E JCT CTH G, Iowa, WI

Built 1989 Load: 34.0 t ADT: 650

LRD SHOP HILL ROAD

Good

Over: BR OTTER CREEK

2.2M N JCT CTH II, Iowa, WI

Built 1991 Load: 34.0 t ADT: 156

CTH W

Good

Over: YELLOWSTONE R

0.1 M N JCT CTH DD TO SOU, Iowa, WI

Built 2006 Load: 34.0 t ADT: 320

LRD ISLAND LAKE RD

Good

Over: W FK MONTREAL RIVER

9.5M W JCT USH 51, Iron, WI

Built 1991 Load: 34.0 t ADT: 77

USH 12-STH 27-WATE

Good

Over: TOWN CREEK

0.8M E JCT IH 94 (F), Jackson, WI

Built 1969 Load: 34.0 t ADT: 10,716

LRD TAYLOR RD

Good

Over: PINE CREEK

1.0M S JCT STH 95, Jackson, WI

Built 1987 Load: 34.0 t ADT: 45

LRD SAND RD

Good

Over: W FK HALLS CREEK

0.8M E JCT STH 95, Jackson, WI

Built 1989 Load: 34.0 t ADT: 85

LRD ELKER RD

Good

Over: E FK HALLS CREEK

0.5M N JCT USH 12, Jackson, WI

Built 1989 Load: 34.0 t ADT: 85

CTH G

Good

Over: N FORK BUFFALO RIVER

0.2M N JCT USH 10, Jackson, WI

Built 1991 Load: 34.0 t ADT: 232

LRD MOE RD (WEST E

Good

Over: N FK BUFFALO RIVER

0.2M N JCT USH 10, Jackson, WI

Built 1992 Load: 34.0 t ADT: 22

CTH F

Good

Over: S BR TREMPEALEAU RIVER

3.8 M. SOU OF JCT 95 STH, Jackson, WI

Built 2002 Load: 34.0 t ADT: 1,500

LRD N PRAIRIE RD (

Good

Over: S FK BUFFALO RIVER

0.2M N JCT CTH B, Jackson, WI

Built 2002 Load: 34.0 t ADT: 40

LRD SKI SLIDE RD

Good

Over: SOO LINE RR

0.7M S JCT STH 16, Jefferson, WI

Built 1994 Load: 34.0 t ADT: 646

USH 18-RACINE ST

Good

Over: ROCK RIVER

2.2M E JCT STH 89 TO N, Jefferson, WI

Built 1998 Load: 34.0 t ADT: 6,100

STH 26 SB

Good

Over: UPRR

0.9 MI. S OF CTH B, Jefferson, WI

Built 2011 Load: 34.0 t ADT: 7,900

STH 80/82

Good

Over: BARABOO RIVER

0.2M N JCT STH71, Juneau, WI

Built 2001 Load: 34.0 t ADT: 4,000

LRD DONLIN RD

Good

Over: ONE MILE CREEK

0.3M E JCT CTH G, Juneau, WI

Built 2003 Load: 34.0 t ADT: 127

LRD 19TH AVE

Good

Over: LEMONWEIR RIVER

.3 M N JCT CTH N, Juneau, WI

Built 2015 Load: 34.0 t ADT: 365

LRD MULLONEY RD

Good

Over: BEAVER CREEK

1.1M W JCT CTH H, Juneau, WI

Built 1986 Load: 34.0 t ADT: 47

CTH K

Good

Over: KILBOURN ROAD DITCH

0.8M W JCT CTH HH, Kenosha, WI

Built 1998 Load: 34.0 t ADT: 7,000

CTH C

Good

Over: NESHONIC CREEK

1.8M N JCT CTH C, La Crosse, WI

Built 1984 Load: 34.0 t ADT: 870

LRD GILLETT ST

Good

Over: CNW RR

0.5M E JCT STH 35, La Crosse, WI

Built 1989 Load: 34.0 t ADT: 7,400

LRD SCHROEDER RD.

Good

Over: DUTCH CREEK

0.2M W JCT CTH II, La Crosse, WI

Built 1987 Load: 34.0 t ADT: 20

LRD ERICKSON RD (D

Good

Over: LARSON COULEE CREEK

0.1M W JCT CTH M, La Crosse, WI

Built 1992 Load: 34.0 t ADT: 10

STH 108

Good

Over: LA CROSSE RIVER

0.2M N JCT STH 16, La Crosse, WI

Built 2004 Load: 34.0 t ADT: 2,800

STH 162

Good

Over: DUTCH CREEK

0.5M N JCT STH 33 TO E, La Crosse, WI

Built 2016 Load: 34.0 t ADT: 1,600

STH 35 SB

Good

Over: BNSF RR

0.9M S JCT STH 157, La Crosse, WI

Built 2016 Load: 34.0 t ADT: 8,850

CTH Y

Good

Over: TROTTER BRANCH

0.1M N JCT CTH M, Lafayette, WI

Built 1977 Load: 34.0 t ADT: 264

LRD STATE LINE RD

Good

Over: BR SPAFFORD CREEK

1.6M E JCT CTH KK, Lafayette, WI

Built 1986 Load: 34.0 t ADT: 112

LRD CENTER DR RD

Good

Over: PATS CREEK

1.0M E JCT CTH X, Lafayette, WI

Built 1997 Load: 34.0 t ADT: 165

LRD S GALENA RD

Good

Over: GALENA RIVER

1.8M S JCT STH 81, Lafayette, WI

Built 1994 Load: 34.0 t ADT: 127

STH 78

Good

Over: BRENNAN CR

AT BRENNAN CREEK, Lafayette, WI

Built 2007 Load: 34.0 t ADT: 1,500

STH 11-BRIDGE ST

Good

Over: BR WOLF CREEK

5.5M E JCT STH 23, Lafayette, WI

Built 2006 Load: 34.0 t ADT: 3,500

STH 11

Good

Over: WOLF CREEK

5.9M E JCT STH 23, Lafayette, WI

Built 2006 Load: 34.0 t ADT: 3,500

LRD ENGLISH HOLLOW

Good

Over: CANON CREEK

1.9M E JCT CTH D, Lafayette, WI

Built 1975 Load: 34.0 t ADT: 88

STH 64

Good

Over: E BR EAU CLAIRE RIVER

11.0M E JCT CTH X TO S, Langlade, WI

Built 1982 Load: 34.0 t ADT: 2,200

CTH H

Good

Over: E BR EAU CLAIRE RIVER

0.9M W JCT CTH N, Langlade, WI

Built 2003 Load: 34.0 t ADT: 304

LRD SPRINGBROOK RD

Good

Over: SPRING BROOK

0.7M E JCT CTH X, Langlade, WI

Built 2003 Load: 34.0 t ADT: 61

LRD DUDLEY RD

Good

Over: N BR PRAIRIE RIVER

2.7M N JCT STH 17, Lincoln, WI

Built 1987 Load: 34.0 t ADT: 144

LRD OXBO CREEK ROA

Good

Over: OXBO CREEK

1.9M E JCT CTH X, Lincoln, WI

Built 1990 Load: 34.0 t ADT: 13

CTH W

Good

Over: PINE RIVER

0.1M N JCT CTH P, Lincoln, WI

Built 1990 Load: 34.0 t ADT: 1,636

CTH E

Good

Over: AVERILL CREEK

4.3M W JCT STH 107, Lincoln, WI

Built 1996 Load: 34.0 t ADT: 31

LRD OLD STH 17

Good

Over: BIG HAY MEADOW CREEK

0.1M W JCT STH 17, Lincoln, WI

Built 2003 Load: 34.0 t ADT: 112

STH 42

Good

Over: MANITOWOC RIVER

AT MANITOWOC RIVER, Manitowoc, WI

Built 1987 Load: 34.0 t ADT: 20,634

LRD HOLMES RD

Good

Over: E TWIN RIVER

0.4M W JCT CTH "B", Manitowoc, WI

Built 1997 Load: 34.0 t ADT: 32

LRD BOX WOOD RD

Good

Over: MUD CREEK

2.6M W JCT STH 32, Manitowoc, WI

Built 2000 Load: 34.0 t ADT: 56

Showing 9,801-9,850 of 14,851 bridges

Related

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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.