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 DOLPHIN RD

Good

Over: MILL CREEK

0.3M N JCT CTH G, Monroe, WI

Built 2019 Load: 36.3 t ADT: 125

LRD BACKTRAIL ROAD

Good

Over: UNNAMED STREAM

0.4 MI W OF BADGER RD, Monroe, WI

Built 2018 Load: 36.3 t ADT: 100

LRD BAY SHORE RD

Good

Over: GREEN BAY TRIBUTARY

0.5M S JCT CTH Y, Oconto, WI

Built 2011 Load: 36.3 t ADT: 103

LRD SLEETER RD

Good

Over: PESHTIGO BROOK

1.3M W JCT CTH Z, Oconto, WI

Built 2016 Load: 36.3 t ADT: 220

CTH CC

Good

Over: BR APPLE CREEK

0.2M SOUTH STH55, Outagamie, WI

Built 2021 Load: 36.3 t ADT: 1,180

LRD COUNTY LINE RD

Good

Over: BR PLUM CREEK

1.5M N JCT CTH Z, Outagamie, WI

Built 2023 Load: 36.3 t ADT: 49

USH 10

Good

Over: PLUM CREEK

0.1M E JCT CTH S, Pierce, WI

Built 2019 Load: 36.3 t ADT: 2,200

LRD W RIVER DRIVE

Good

Over: ROCKY RUN

1.4M E JCT CTH P, Portage, WI

Built 2009 Load: 36.3 t ADT: 309

LRD TOWER ROAD

Good

Over: TENMILE CREEK

0.6 MILES EAST OF CTH U, Portage, WI

Built 2016 Load: 36.3 t ADT: 100

STH 102

Good

Over: S FK SPIRIT R

6 MILE SOUTH OF STH 86, Price, WI

Built 2011 Load: 36.3 t ADT: 390

CTH U

Good

Over: TRIB TO W BRANCH CANAL

0.6M N STH 20, Racine, WI

Built 2012 Load: 36.3 t ADT: 1,200

STH 56/80

Good

Over: FANCY CREEK

0.1M E JCT STH 80 TO N, Richland, WI

Built 2018 Load: 36.3 t ADT: 3,300

LRD CARVERS ROCK R

Good

Over: TURTLE CREEK

4.0M S JCT USH 14, Rock, WI

Built 2017 Load: 36.3 t ADT: 231

CTH G

Good

Over: WATERWAY

7 M N JCT STH 81, Rock, WI

Built 2015 Load: 36.3 t ADT: 9,000

IH 39 SB/90 EB

Good

Over: CMSTPP RR / SPRING BROOK

0.6M E JCT IH 43 TO S, Rock, WI

Built 2021 Load: 36.3 t ADT: 29,550

IH 39 SB / IH 90 E

Good

Over: SPRING BROOK / SPRING BR

2.3M E JCT USH 14 TO E, Rock, WI

Built 2019 Load: 36.3 t ADT: 38,500

IH 39 NB / IH 90 W

Good

Over: SPRING BROOK / SPRING BR

PLEASE UPDATE LOCATION, Rock, WI

Built 2018 Load: 36.3 t ADT: 38,500

STH 40

Good

Over: DEVILS CREEK

1.3M N JCT CTH O, Rusk, WI

Built 2021 Load: 36.3 t ADT: 1,000

LRD SKINNER CREEK

Good

Over: SKINNER CREEK

2.6M W JCT CTH M, Rusk, WI

Built 2021 Load: 36.3 t ADT: 250

CTH G

Good

Over: BARABOO RIVER

AT BARABOO RIVER, Sauk, WI

Built 2009 Load: 36.3 t ADT: 480

LRD TOWER ROAD

Good

Over: CLARK CREEK

.1 MI E. OF JCT W/ STH 13, Sauk, WI

Built 2013 Load: 36.3 t ADT: 202

STH 136

Good

Over: SKILLETT CREEK

0.1M E JCT USH 12, Sauk, WI

Built 2021 Load: 36.3 t ADT: 1,600

STH 40

Good

Over: COUDERAY RIVER

7.5M N JCT STH 48, Sawyer, WI

Built 2017 Load: 36.3 t ADT: 420

CTH HHH

Good

Over: SHAWANO CREEK

0.6 MI. N. JCT. STH 29, Shawano, WI

Built 2022 Load: 36.3 t ADT: 6,300

LRD JAMES ST

Good

Over: PICKEREL CREEK

0.02 MI E JCT SOUTH WARRI, Shawano, WI

Built 2021 Load: 36.3 t ADT: 50

LRD RISSEEUW ROAD

Good

Over: HAND CREEK

0.1M E JCT CTH GW, Sheboygan, WI

Built 2022 Load: 36.3 t ADT: 55

LRD WILLOW RD

Good

Over: OTTER CREEK

0.2M S JCT CTH J, Sheboygan, WI

Built 2022 Load: 36.3 t ADT: 130

IH 94 EB

Good

Over: RUSH RIVER

2.3M E JCT CTH T TO N, St. Croix, WI

Built 2023 Load: 36.3 t ADT: 19,000

LRD SYLLA RD (DEAD

Good

Over: BORST VALLEY CREEK

0.2M E JCT CTH V, Trempealeau, WI

Built 2010 Load: 36.3 t ADT: 100

IH 94 EB

Good

Over: BUFFALO RIVER

6.4M E JCT CTH HH TO N, Trempealeau, WI

Built 2020 Load: 36.3 t ADT: 13,950

IH 94 WB

Good

Over: BUFFALO RIVER

0.9M W JCT USH 10 TO E, Trempealeau, WI

Built 2019 Load: 36.3 t ADT: 13,950

LRD LEQUE LANE (DE

Good

Over: N FK BEAVER CREEK

0.2M N JCT CTH C, Trempealeau, WI

Built 2017 Load: 36.3 t ADT: 20

LRD NORDIE LANE (D

Good

Over: N FK BEAVER CREEK

0.1M N JCT CTH C, Trempealeau, WI

Built 2017 Load: 36.3 t ADT: 20

LRD KOWAHL ROAD (D

Good

Over: NORTH BRANCH ELK CREEK

0.1M W JCT CTH D, Trempealeau, WI

Built 2022 Load: 36.3 t ADT: 11

STH 93

Good

Over: TROUT CREEK

0.1M N JCT CTH V TO E, Trempealeau, WI

Built 2023 Load: 36.3 t ADT: 4,200

LRD GARDNER ROAD

Good

Over: BR HORNBY HOLLOW CREEK

1.9M N JCT STH 27, Vernon, WI

Built 2009 Load: 36.3 t ADT: 103

LRD 24 VALLEY RD

Good

Over: WEISTER CREEK

3.0M W JCT STH 131, Vernon, WI

Built 2015 Load: 36.3 t ADT: 65

STH 35

Good

Over: COON CREEK

5.2M N JCT STH 56, Vernon, WI

Built 2020 Load: 36.3 t ADT: 5,400

CTH P

Good

Over: CLARK CREEK

0.7M E JCT CTH D, Vernon, WI

Built 2023 Load: 36.3 t ADT: 153

LRD SPRING VALLEY

Good

Over: SAND CREEK

1.65M S JCT STH 36, Walworth, WI

Built 2012 Load: 36.3 t ADT: 979

USH 14

Good

Over: TURTLE CREEK

1.8 MI E JCT STH 89, Walworth, WI

Built 2019 Load: 36.3 t ADT: 7,400

LRD TRADING POST T

Good

Over: N BRANCH OF MILWAUKEE RI

3.2 MILES E OF JUNCTION W, Washington, WI

Built 2022 Load: 36.3 t ADT: 295

IH 41 SB

Good

Over: TRIBUTARY TO E BRANCH RO

2.9 MI S JCT CTH D, Washington, WI

Built 2020 Load: 36.3 t ADT: 15,750

LRD WACKER DR

Good

Over: RUBICON RIVER

0.2M N JCT STH 60, Washington, WI

Built 2020 Load: 36.3 t ADT: 5,000

STH 83 SB

Good

Over: SPRING BROOK

1.2 MI S JCT STH 59, Waukesha, WI

Built 2011 Load: 36.3 t ADT: 3,200

USH 18 WB

Good

Over: WETLANDS

0.25 MI N JCT STH 59, Waukesha, WI

Built 2019 Load: 36.3 t ADT: 6,100

USH 18 EB

Good

Over: WETLANDS

2.95 MI S JCT USH 318, Waukesha, WI

Built 2019 Load: 36.3 t ADT: 7,200

LRD EMMONS CREEK R

Good

Over: EMMONS CREEK

0.1M E W RD, Waupaca, WI

Built 2017 Load: 36.3 t ADT: 110

CTH E

Good

Over: PINE RIVER

0.1M N JCT CTH H TO W, Waushara, WI

Built 2013 Load: 36.3 t ADT: 640

LRD ADAMS ST

Good

Over: NEENAH SLOUGH

0.1M E OF S. LAKE ST., Winnebago, WI

Built 2010 Load: 36.3 t ADT: 9,600

Showing 11,001-11,050 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.