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

IH 94 WB

Good

Over: CARR CREEK

0.3M W JCT CTH B TO N, St. Croix, WI

Built 2022 Load: 34.0 t ADT: 19,750

LRD 130TH AVE

Good

Over: KINNICKINNIC RIVER

0.7M E JCT CTH T, St. Croix, WI

Built 1976 Load: 34.0 t ADT: 150

CTH M

Good

Over: E LEMKE CREEK

3.9M E JCT CTH C, Taylor, WI

Built 1987 Load: 34.0 t ADT: 451

LRD MONSON DR (DEA

Good

Over: SHOULDER CREEK

2.1M E JCT CTH H, Taylor, WI

Built 1988 Load: 34.0 t ADT: 146

CTH E

Good

Over: BR WASHINGTON CREEK

2.9M N JCT STH 64, Taylor, WI

Built 1990 Load: 34.0 t ADT: 1,004

CTH E

Good

Over: BR WASHINGTON CREEK

2.6M N JCT STH 64, Taylor, WI

Built 1990 Load: 34.0 t ADT: 1,004

LRD SOUTH LOOP

Good

Over: FISHER RIVER

1.1M S JCT CTH M, Taylor, WI

Built 1997 Load: 34.0 t ADT: 38

STH 64

Good

Over: MCKENZIE CREEK

2.5M E JCT CTH F, Taylor, WI

Built 2003 Load: 34.0 t ADT: 1,400

LRD ALFALFA AVE

Good

Over: BLACK RIVER

1.3M W JCT STH 13, Taylor, WI

Built 2001 Load: 34.0 t ADT: 59

LRD ALLMAN ST

Good

Over: BLACK R

1.0M JCT P, Taylor, WI

Built 2009 Load: 34.0 t ADT: 1,751

CTH M

Good

Over: BR FISHER RIVER

1.2M E JCT CTH H, Taylor, WI

Built 2009 Load: 34.0 t ADT: 297

LRD LAYMAN AVE

Good

Over: LAYMAN CREEK

1.7M E JCT CTH C, Taylor, WI

Built 2009 Load: 34.0 t ADT: 87

LRD WREN DR

Good

Over: PINE CREEK

0.1M N JCT CTH A, Taylor, WI

Built 2018 Load: 34.0 t ADT: 100

STH 93

Good

Over: TREMPEALEAU RIVER

1.9M N JCT STH 95, Trempealeau, WI

Built 1977 Load: 34.0 t ADT: 8,000

USH 53

Good

Over: PIGEON CREEK

0.1M N JCT STH 121 TO E, Trempealeau, WI

Built 1978 Load: 34.0 t ADT: 2,600

STH 93

Good

Over: TAMARACK CREEK TRIB.

0.1M N JCT CTH F, Trempealeau, WI

Built 1998 Load: 34.0 t ADT: 4,100

LRD SCRANTON ST

Good

Over: IRVIN CREEK

0.1M E JCT USH 53 TO N, Trempealeau, WI

Built 1991 Load: 34.0 t ADT: 1,012

CTH T

Good

Over: TURTON CREEK

1.7M S JCT STH 95, Trempealeau, WI

Built 1997 Load: 34.0 t ADT: 792

LRD RIVER VALLEY R

Good

Over: PLUM CREEK

0.8M S JCT CTH Q, Trempealeau, WI

Built 2000 Load: 34.0 t ADT: 205

LRD WAYSIDE LANE (

Good

Over: FRENCH CREEK

0.1M N JCT CTH T, Trempealeau, WI

Built 2000 Load: 34.0 t ADT: 15

LRD ANDEREGG ROAD

Good

Over: TRUMP COULEE CREEK

2.0 M E JCT CTH S, Trempealeau, WI

Built 2004 Load: 34.0 t ADT: 106

CTH J

Good

Over: LATCH VALLEY CREEK

0.1M E JCT CTH JJ, Trempealeau, WI

Built 2006 Load: 34.0 t ADT: 1,102

STH 35-STH 54

Good

Over: TAMARACK CREEK

0.7M N JCT STH 93 TO N, Trempealeau, WI

Built 2007 Load: 34.0 t ADT: 7,000

USH 53

Good

Over: BEAVER CREEK

5.4M N JCT STH 54 TO E, Trempealeau, WI

Built 2014 Load: 34.0 t ADT: 4,600

CTH D

Good

Over: BRUCE VALLEY CREEK

1.0M N JCT CTH E, Trempealeau, WI

Built 2010 Load: 34.0 t ADT: 535

CTH O

Good

Over: ELK CREEK

0.2M N JCT CTH E, Trempealeau, WI

Built 2018 Load: 34.0 t ADT: 380

LRD KOLL RD

Good

Over: KOLL COULEE CREEK

0.6M E JCT STH 162, Vernon, WI

Built 1987 Load: 34.0 t ADT: 45

LRD WEST TAINTER H

Good

Over: BR TAINTER CREEK

5.2M S JCT STH 27, Vernon, WI

Built 1994 Load: 34.0 t ADT: 44

LRD SUBERA LANE (D

Good

Over: HILLS CREEK

0.1M N JCT CTH F, Vernon, WI

Built 2000 Load: 34.0 t ADT: 15

CTH N

Good

Over: PURDY VALLEY CREEK

1.8M S JCT STH 56, Vernon, WI

Built 2006 Load: 34.0 t ADT: 265

CTH KK

Good

Over: COON CREEK

0.1M S JCT STH 162, Vernon, WI

Built 2006 Load: 34.0 t ADT: 261

LRD CLEAR LAKE RD

Good

Over: CLEAR LAKE

1.0M S JCT CTH K, Vilas, WI

Built 1990 Load: 34.0 t ADT: 310

CTH ES

Good

Over: SUGAR CREEK

0.3M W JCT USH 12, Walworth, WI

Built 2001 Load: 34.0 t ADT: 2,600

STH 20

Good

Over: SPRING CREEK

2.4 MI E JCT STH 20/IH 43, Walworth, WI

Built 2002 Load: 34.0 t ADT: 2,700

LRD TOMBEAU RD

Good

Over: TOMBEAU LAKE

1.6M E JCT CTH U, Walworth, WI

Built 2004 Load: 34.0 t ADT: 316

CTH U

Good

Over: E BR NIPPERSINK CREEK

0.6M N JCT CTH B, Walworth, WI

Built 2021 Load: 34.0 t ADT: 2,270

USH 53 SB

Good

Over: NAMEKAGON RIVER

5.3M S JCT CTH F, Washburn, WI

Built 1987 Load: 34.0 t ADT: 2,700

STH 175

Good

Over: LIMESTONE CREEK

1.2M N JCT STH 83, Washington, WI

Built 1991 Load: 34.0 t ADT: 2,400

LRD WALNUT-WATER S

Good

Over: MILWAUKEE RIVER

2.7M N JCT CTH NN TO E, Washington, WI

Built 1980 Load: 34.0 t ADT: 3,900

STH 145

Good

Over: MENOMONEE RIVER

1.4 MI N JCT STH 167, Washington, WI

Built 1990 Load: 34.0 t ADT: 5,000

LRD RIVER ROAD

Good

Over: MILWAUKEE RIVER

0.1M S JCT STH 33, Washington, WI

Built 1990 Load: 34.0 t ADT: 10,700

STH 33

Good

Over: E BR ROCK RIVER

1.47M E JCT STH 175, Washington, WI

Built 1994 Load: 34.0 t ADT: 12,100

LRD GRANT ST

Good

Over: RUBICON RIVER

0.1M N JCT STH 60, Washington, WI

Built 1996 Load: 34.0 t ADT: 1,333

STH 28

Good

Over: E BR MILWAUKEE RIVER

0.9M E JCT CTH S, Washington, WI

Built 1997 Load: 34.0 t ADT: 3,400

STH 83

Good

Over: ASHIPPUN RIVER

0.2M SOUTH JCT CTH E, Washington, WI

Built 2023 Load: 34.0 t ADT: 6,600

CTH M

Good

Over: MILWAUKEE RIVER

0.1M S JCT STH 33, Washington, WI

Built 2020 Load: 34.0 t ADT: 2,200

LRD INDEPENDENCE A

Good

Over: RUBICON RIVER

0.4M N JCT STH 60, Washington, WI

Built 1994 Load: 34.0 t ADT: 1,477

LRD GENESSE LAKE R

Good

Over: BARK RIVER

0.5M E JCT STH 67, Waukesha, WI

Built 2000 Load: 34.0 t ADT: 1,000

STH 36 WB

Good

Over: MUSKEGO CANAL

3.5M S JCT USH 45 TO S, Waukesha, WI

Built 1967 Load: 34.0 t ADT: 6,450

STH 83

Good

Over: BARK RIVER

2.6M N JCT IH 94, Waukesha, WI

Built 1992 Load: 34.0 t ADT: 13,400

Showing 10,001-10,050 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.