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

CTH A

Good

Over: SUGAR RIVER

0.6M W JCT STH 69, Dane, WI

Built 2017 Load: 40.2 t ADT: 530

LRD EAST LAKE ST

Good

Over: ROCK RIVER

.1M W JCT STH 33, Dodge, WI

Built 2014 Load: 40.2 t ADT: 7,135

LRD SWEDISH HIGHWA

Good

Over: SPRUCE RIVER

1.3MILES NORTH OF TOWN RO, Douglas, WI

Built 2015 Load: 40.2 t ADT: 50

IH 94 EB

Good

Over: OTTER CREEK

10.7M E JCT USH 53 TO N, Eau Claire, WI

Built 1966 Load: 40.2 t ADT: 13,200

IH 94 WB

Good

Over: OTTER CREEK

0.5M W JCT CTH HH TO N, Eau Claire, WI

Built 1966 Load: 40.2 t ADT: 13,200

CTH V

Good

Over: BRANCH BEARGRASS CREAK

0.1 MI W USH 12, Eau Claire, WI

Built 2020 Load: 40.2 t ADT: 260

CTH V

Good

Over: MILWAUKEE RIVER

0.20M S JCT CTH F, Fond du Lac, WI

Built 2013 Load: 40.2 t ADT: 2,200

STH 23

Good

Over: ROCK BRANCH CREEK

1.2M E JCT CTH S, Iowa, WI

Built 2022 Load: 40.2 t ADT: 2,917

CTH MB / 152ND AVE

Good

Over: ROOT RIVER

2.6 MI SOUTH OF STH 142, Kenosha, WI

Built 2022 Load: 40.2 t ADT: 790

LRD FRIENDSHIP ST

Good

Over: SHULLSBURG BRANCH

0.3M S JCT STH 11, Lafayette, WI

Built 2011 Load: 40.2 t ADT: 331

LRD PIONEER ROAD

Good

Over: MEEME RIVER

0.6M S JCT STH 42, Manitowoc, WI

Built 2010 Load: 40.2 t ADT: 292

IH 43 NB

Good

Over: INDIAN CREEK

0.7 MILES SOUTH OF STH 10, Milwaukee, WI

Built 2023 Load: 40.2 t ADT: 40,500

LRD NORDALE AVE

Good

Over: BRANCH KICKAPOO RIVER

0.3 MILES E OF STH 131, Monroe, WI

Built 2014 Load: 40.2 t ADT: 150

SOUTH O STREET

Good

Over: TARR CREEK

So. O St over Tarr Creek, Monroe, WI

Built 1996 Load: 40.2 t ADT: 2,000

LRD 165TH AVE

Good

Over: FOX CREEK

0.6M E JCT CTH H, Polk, WI

Built 2021 Load: 40.2 t ADT: 10

CTH U

Good

Over: TEN MILE CREEK

1.7M N JCT STH 73, Portage, WI

Built 2011 Load: 40.2 t ADT: 669

CTH B

Good

Over: BEAR CREEK

CTH B, Richland, WI

Built 2021 Load: 40.2 t ADT: 875

CTH W

Good

Over: MILL CREEK

CTH W, Sauk, WI

Built 2021 Load: 40.2 t ADT: 760

LRD RISSEEUW RD

Good

Over: ONION RIVER

0.9M E JCT CTH GW, Sheboygan, WI

Built 2018 Load: 40.2 t ADT: 90

CTH J

Good

Over: KINNICKINNIC RIVER

1.2M E JCT STH 65, St. Croix, WI

Built 2008 Load: 40.2 t ADT: 703

STH 35

Good

Over: TREMPEALEAU RIVER EAST C

0.7M E JCT CTH P, Trempealeau, WI

Built 2022 Load: 40.2 t ADT: 6,600

IRR BIA RTE 15

Good

Over: TROUT RIVER

2.3KM SE OF JCT CTH H, Vilas, WI

Built 2020 Load: 40.2 t ADT: 50

CTH B

Good

Over: LADD CREEK

0.8M W JCT CTH C, Walworth, WI

Built 2020 Load: 40.2 t ADT: 320

IH 41 SB

Good

Over: KOHLSVILLE RIVER

2.3 MI S JCT CTH H, Washington, WI

Built 2017 Load: 40.2 t ADT: 16,650

LRD KETTLE VIEW DR

Good

Over: KEWASKUM CREEK

TOWN OF KEWASKUM, Washington, WI

Built 2019 Load: 40.2 t ADT: 610

LRD CZECH COURT

Good

Over: LUNCH CREEK

0.4 MI E JCT STH 22, Waushara, WI

Built 2021 Load: 40.2 t ADT: 100

LRD ANIWA LN

Good

Over: BR FOURTEEN MILE CREEK

4.3M E JCT STH 13, Adams, WI

Built 1978 Load: 40.5 t ADT: 22

LRD LONG LAKE RD

Good

Over: MINNOW CREEK

2.6M S JCT CTH MM, Ashland, WI

Built 1996 Load: 40.5 t ADT: 21

LRD MORSE RD

Good

Over: SPILLERBERG CR

0.3 M E. JCT STH 13, Ashland, WI

Built 2004 Load: 40.5 t ADT: 106

CTH SS

Good

Over: MEADOWS CREEK

3.3M N JCT USH 8, Barron, WI

Built 1986 Load: 40.5 t ADT: 9,701

CTH A

Good

Over: HAY RIVER

0.1M E JCT CTH F, Barron, WI

Built 1990 Load: 40.5 t ADT: 926

LRD 24TH ST

Good

Over: BRILL RIVER

0.3M N OF 23RD AVENUE, Barron, WI

Built 1994 Load: 40.5 t ADT: 111

LRD 28TH ST

Good

Over: MOOSE EAR CREEK

0.3M N JCT CTH D, Barron, WI

Built 2001 Load: 40.5 t ADT: 107

CTH A

Good

Over: TILLER CREEK

0.6M E JCT CTH I TO S, Barron, WI

Built 2001 Load: 40.5 t ADT: 397

LRD 24TH ST NORTH

Good

Over: GREGARSON SLOUGH

1.3M W JCT CTH M, Barron, WI

Built 1999 Load: 40.5 t ADT: 108

LRD 29TH AVENUE

Good

Over: BRILL RIVER

1.3M E JCT CTH M, Barron, WI

Built 2006 Load: 40.5 t ADT: 105

LRD 28TH ST

Good

Over: ROCK CREEK

0.9M N 16TH AVENUE, Barron, WI

Built 1976 Load: 40.5 t ADT: 23

USH 63

Good

Over: NAMEKAGON RIVER

5.4M N JCT CTH OO, Bayfield, WI

Built 1966 Load: 40.5 t ADT: 2,900

LRD KAUKAMO RD

Good

Over: MUSKEG CREEK

3.2M N JCT CTH B, Bayfield, WI

Built 1984 Load: 40.5 t ADT: 104

LRD ONDOSSAGON RD

Good

Over: WHITTLESEY CREEK

0.8M W JCT STH 13, Bayfield, WI

Built 1991 Load: 40.5 t ADT: 56

STH 13

Good

Over: KINNEY CREEK

0.7M N JCT CTH A, Bayfield, WI

Built 2004 Load: 40.5 t ADT: 630

STH 13

Good

Over: LARSON CREEK

0.3 M N JCT CTH A, Bayfield, WI

Built 2004 Load: 40.5 t ADT: 1,400

LRD COUNTY LINE RD

Good

Over: BRANCH RIVER

0.6M E JCT CTH G, Brown, WI

Built 1989 Load: 40.5 t ADT: 119

LRD MORROW ST

Good

Over: BAIRD CREEK

0.8M E JCT STH 29, Brown, WI

Built 1992 Load: 40.5 t ADT: 2,000

IH I41 NB OFF RAMP

Good

Over: ASHWAUBENON CREEK

AT ASHWAUBENON CREEK, Brown, WI

Built 2011 Load: 40.5 t ADT: 3,100

CTH NN

Good

Over: HUTCHINSON CREEK

4.7M W JCT STH 88, Buffalo, WI

Built 1988 Load: 40.5 t ADT: 108

STH 35

Good

Over: CHIPPEWA RIVER 01

2.6M N JCT STH 25 TO N, Buffalo, WI

Built 1994 Load: 40.5 t ADT: 2,300

LRD BOLAND VALLEY

Good

Over: BOLAND VALLEY CREEK

0.2M N JCT STH 95, Buffalo, WI

Built 2001 Load: 40.5 t ADT: 86

LRD REISCH VALLEY

Good

Over: FIMIAN CREEK

0.2M S JCT CTH S, Buffalo, WI

Built 2002 Load: 40.5 t ADT: 31

LRD BRANDHORST RD

Good

Over: BR TREMPEALEAU RIVER

2.3M N JCT CTH M, Buffalo, WI

Built 2002 Load: 40.5 t ADT: 139

Showing 12,451-12,500 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.