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 P

Good

Over: WARNER CREEK

0.4M E JCT STH 131, Vernon, WI

Built 2006 Load: 42.1 t ADT: 114

CTH M

Good

Over: MANITOWISH RIVER

0.6M N JCT CTH K, Vilas, WI

Built 1993 Load: 42.1 t ADT: 2,900

STH 47

Good

Over: POKEGAMA LAKE

POKEGAMA LAKE, Vilas, WI

Built 2003 Load: 42.1 t ADT: 2,300

LRD HODUNK RD

Good

Over: SUGAR CREEK

1.3 MI S JCT CTH D, Walworth, WI

Built 1971 Load: 42.1 t ADT: 58

CTH M RICHMOND R

Good

Over: TURTLE CREEK

0.4M N JCT STH 11, Walworth, WI

Built 2001 Load: 42.1 t ADT: 2,100

CTH P

Good

Over: CEDAR CREEK

2.6M N JCT STH 145, Washington, WI

Built 1986 Load: 42.1 t ADT: 2,700

CTH XX

Good

Over: N BR MILWAUKEE RIVER

1.2M N JCT CTH H, Washington, WI

Built 1995 Load: 42.1 t ADT: 330

LRD BARK LAKE DRIV

Good

Over: BARK RIVER

0.3 MI S JCT BARK LAKE DR, Washington, WI

Built 1995 Load: 42.1 t ADT: 165

LRD BOLTON DRIVE

Good

Over: STONEY CREEK

AT STONEY CREEK, Washington, WI

Built 2003 Load: 42.1 t ADT: 256

CTH NN

Good

Over: JERICHO CREEK

0.2M W JCT CTH E, Waukesha, WI

Built 2001 Load: 42.1 t ADT: 6,200

STH 16 WB

Good

Over: OCONOMOWOC RIVER

1.1 M W JCT CTH P, Waukesha, WI

Built 1989 Load: 42.1 t ADT: 14,050

STH 16WB/67NB

Good

Over: OCONOMOWOC RIVER

0.56 MI N JCT STH 16, Waukesha, WI

Built 2004 Load: 42.1 t ADT: 9,450

STH 16EB/67SB

Good

Over: OCONOMOWOC RIVER

0.9 MI S JCT CTH Z, Waukesha, WI

Built 2004 Load: 42.1 t ADT: 9,450

CTH D

Good

Over: SCHOOL SECTION CREEK

1.6M W JCT STH 67, Waukesha, WI

Built 1993 Load: 42.1 t ADT: 342

LRD CUSHING PARK R

Good

Over: BARK RIVER

0.6M N JCT IH 94, Waukesha, WI

Built 2004 Load: 42.1 t ADT: 250

LRD SILVER MEADOWS

Good

Over: WILLOW CREEK

.5 MI E OF TOWN LINE RD, Waukesha, WI

Built 2012 Load: 42.1 t ADT: 251

STH 110 SB

Good

Over: MOSQUITO CREEK

0.1M N JCT USH10, Waupaca, WI

Built 1999 Load: 42.1 t ADT: 1,300

STH 110 NB

Good

Over: MOSQUITO CREEK

0.1M N JCT USH10, Waupaca, WI

Built 1999 Load: 42.1 t ADT: 1,300

STH 22-STH 110-BRI

Good

Over: LITTLE WOLF RIVER

0.1M N JCT CTH N TO E, Waupaca, WI

Built 2002 Load: 42.1 t ADT: 5,300

CTH-CB

Good

Over: WIS CENTRAL LTD RR

TOWN OF MENASHA, Winnebago, WI

Built 1997 Load: 42.1 t ADT: 10,400

CTH S

Good

Over: DAGGETS CREEK

AT DAGGETS CREEK, Winnebago, WI

Built 2005 Load: 42.1 t ADT: 1,332

LRD CAMERON WAY

Good

Over: NEENAH SLOUGH

0.1M E JCT JEWELERS PARK, Winnebago, WI

Built 2002 Load: 42.1 t ADT: 1

CTH P

Good

Over: WCL RR

0.7M E JCT USH 10, Wood, WI

Built 1983 Load: 42.1 t ADT: 1,500

STH 54EB

Good

Over: HEMLOCK CREEK

TOWN OF CRANMOOR, Wood, WI

Built 2009 Load: 42.1 t ADT: 770

LRD INGRAHAM RD

Good

Over: BR YELLOW RIVER

0.3M S JCT STH 173, Wood, WI

Built 2006 Load: 42.1 t ADT: 21

LRD BATTERMAN RD

Good

Over: BR CRANBERRY CREEK

5.3M W JCT CTH G, Wood, WI

Built 2007 Load: 42.1 t ADT: 41

CTH F

Good

Over: BRANCH HEMLOCK CREEK

1.7M S CTH N, Wood, WI

Built 2009 Load: 42.1 t ADT: 560

CTH F

Good

Over: BRANCH HEMLOCK CREEK

4.1M N CTH C, Wood, WI

Built 2009 Load: 42.1 t ADT: 560

IH 41 NB/IH 94 WB

Good

Over: ROOT RIVER

8.3 MI N JCT STH 20, Milwaukee, WI

Built 2019 Load: 42.4 t ADT: 53,500

IH 41 SB/IH 94 EB

Good

Over: ROOT RIVER

2.2 MI S JCT STH 100, Milwaukee, WI

Built 2019 Load: 42.4 t ADT: 53,500

LRD SHEEP RANCH RD

Good

Over: ELK RIVER

1.1M E JCT CTH H, Price, WI

Built 2017 Load: 42.4 t ADT: 43

IH 39 SB / IH 90 E

Good

Over: CNW RR

1.0M S JCT STH 11 TO W, Rock, WI

Built 2019 Load: 42.4 t ADT: 32,550

IH 39 NB / IH 90 W

Good

Over: CNW/UP RR

4.4M W JCT CTH S TO E, Rock, WI

Built 2018 Load: 42.4 t ADT: 32,550

CTH A

Good

Over: MULLET RIVER

0.5M S JCT CTH S, Sheboygan, WI

Built 2020 Load: 42.4 t ADT: 930

CTH O

Good

Over: N BRANCH ELK CREEK

1.1M N JCT CTH OO, Trempealeau, WI

Built 2018 Load: 42.4 t ADT: 440

IRR BIA RTE 33

Good

Over: NORTH VAUGHN CREEK

10KM NORTH OF JCT HWY 169, Ashland, WI

Built 2006 Load: 42.5 t ADT: 50

IRR BIA RTE 116

Good

Over: EATON CREEK

SPEARS ROAD, Menominee, WI

Built 2008 Load: 42.5 t ADT: 20

CTH NN

Good

Over: ROGER CREEK

0.3M N JCT CTH MM, Clark, WI

Built 2022 Load: 42.8 t ADT: 480

LRD VALLEY SPRING

Good

Over: SUGAR RIVER

0.7M SOUTH OF CTH J, Dane, WI

Built 2016 Load: 42.8 t ADT: 100

STH 133

Good

Over: GREEN RIVER

0.6M N JCT CTH C, Grant, WI

Built 2022 Load: 42.8 t ADT: 530

STH 42

Good

Over: THREE MILE CREEK

1.5 MI S OF JCT. CTH K, Kewaunee, WI

Built 2020 Load: 42.8 t ADT: 3,300

STH 64

Good

Over: SPRING BROOK

1.0M E JCT USH 45 TO N, Langlade, WI

Built 2021 Load: 42.8 t ADT: 7,500

CTH BB

Good

Over: NESHOTA RIVER

AT NESHOTA RIVER, Manitowoc, WI

Built 2015 Load: 42.8 t ADT: 840

IH 90 WB-IH 94 WB

Good

Over: BR ALLEN CREEK

4.6M W JCT CTH C TO N, Monroe, WI

Built 1963 Load: 42.8 t ADT: 18,950

LRD ORLANDO AVE

Good

Over: BILLINGS CREEK

0.1M E JCT CTH Z, Monroe, WI

Built 2020 Load: 42.8 t ADT: 27

CTH N

Good

Over: SPRING VALLEY CREEK

1.3M W JCT CTH W, Monroe, WI

Built 2021 Load: 42.8 t ADT: 250

CTH J

Good

Over: LITTLE THORNAPPLE RIVER

0.8M W JCT STH 27-44, Rusk, WI

Built 2017 Load: 42.8 t ADT: 170

STH 23 WB

Good

Over: LRD ICE AGE TRAIL

0.1 MI E OF CTH A, Sheboygan, WI

Built 2020 Load: 42.8 t ADT: 4,200

LRD CREEK RD

Good

Over: PLUM CREEK

1.0M S JCT CTH Q, Trempealeau, WI

Built 2020 Load: 42.8 t ADT: 125

LRD N HARRISON HOL

Good

Over: HARRISON CREEK

1.0M S JCT CTH SS, Vernon, WI

Built 2017 Load: 42.8 t ADT: 99

Showing 13,151-13,200 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.