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 41 SB

Unknown

Over: STH 96 (WISCONSIN AVE)

AT JCT USH 41-STH 96, Outagamie, WI

Built 1992 ADT: 27,700

IH 41 NB

Unknown

Over: STH 96 (WISCONSIN AVE)

AT JCT USH 41-STH 96, Outagamie, WI

Built 1992 ADT: 27,700

IH 41 SB

Unknown

Over: CTH U

TOWN OF KAUKAUNA, Outagamie, WI

Built 1999 ADT: 6,300

IH41 NB

Unknown

Over: CTH U

TOWN OF KAUKAUNA, Outagamie, WI

Built 1999 ADT: 6,300

IH 41 SB

Unknown

Over: LRD SPENCER ST

AT JCT USH 41, Outagamie, WI

Built 1992 ADT: 7,300

IH USH 10 WB-IH 41

Unknown

Over: LRD SPENCER ST

AT JCT IH 41, Outagamie, WI

Built 1992 ADT: 7,300

LRD MEADE ST

Unknown

Over: IH 41

1.2M N JCT STH 47 TO N, Outagamie, WI

Built 1996 ADT: 73,300

CTH E (BALLARD RD)

Unknown

Over: IH 41

2.2M N JCT STH 47 TO N, Outagamie, WI

Built 1995 ADT: 76,200

CTH CE

Unknown

Over: CTH N

1.0M N JCT CTH KK, Outagamie, WI

Built 1995 ADT: 127,000

STH 15 EB

Unknown

Over: IH 41

1.2M N JCT USH 10 TO E, Outagamie, WI

Built 1997 ADT: 63,900

STH 15 WB

Unknown

Over: IH 41 NB

1.3M N JCT USH 10 TO E, Outagamie, WI

Built 1997 ADT: 63,900

CTH N

Unknown

Over: IH 41

5.3M N JCT STH 47 TO N, Outagamie, WI

Built 2002 ADT: 51,200

USH STH 45 NB

Unknown

Over: LRD CROSS ROAD

AT USH 45, Outagamie, WI

Built 2003 ADT: 550

LRD GIVENS ROAD

Unknown

Over: USH 45

3.0M S JCT STH 15, Outagamie, WI

Built 2003 ADT: 6,400

BICYCLE/PEDESTRIAN

Unknown

Over: USH 41

BIKE PATH, Outagamie, WI

Built 2002 ADT: 99

PEDESTRIAN WALKWAY

Unknown

Over: SUPERIOR STREET

PED BRIDGE, Outagamie, WI

Built 1981 ADT: 2,466

LRD PROSPECT AVE

Unknown

Over: LRD JACKMAN ST

.1M E JCT USH 10, Outagamie, WI

Built 2015 ADT: 1,800

STH 15 EB

Unknown

Over: CTH M

0.4 MI N JCT N NASH ST, Outagamie, WI

Built 2023 ADT: 2,735

STH 15 EB

Unknown

Over: LRD NASH ST

0.4 MI E JCT N OLK ST, Outagamie, WI

Built 2023 ADT: 1,250

STH 15 WB

Unknown

Over: LRD NASH ST

0.4 MI E JCT N OLK ST, Outagamie, WI

Built 2023 ADT: 1,250

PEDESTRIAN BRIDGE

Unknown

Over: LRD LAWRENCE ST

07280000000 004, Outagamie, WI

SOO LINE

Unknown

Over: STH 54-STATE ST

1.5M E JCT CTH P, Outagamie, WI

Built 1929 ADT: 4,300

CNW RR

Unknown

Over: STH 96-WISCONSIN AVE

1.2M E JCT STH 47, Outagamie, WI

Built 1928 ADT: 20,300

WISCONSIN CENTRAL

Unknown

Over: LRD BANTA CT.

AT INTERSECTION, Outagamie, WI

Built 1998 ADT: 9,200

CNW RR

Unknown

Over: LRD MASON ST

0.3M S JCT STH 125, Outagamie, WI

Built 1922 ADT: 5,490

CNW RR

Unknown

Over: LRD S PIERCE AVE

0.3M W JCT STH 47, Outagamie, WI

Built 1913 ADT: 342

STH 60

Unknown

Over: IH 43/STH 32/STH 57

7.0M N JCT STH167 TO W, Ozaukee, WI

Built 2001 ADT: 50,300

IH 43 NB-STH 32 NB

Unknown

Over: STH 57-STH 167-MEQUON RD

0.2M N JCT CTH W, Ozaukee, WI

Built 1966 ADT: 28,000

IH 43 SB/STH 32 SB

Unknown

Over: STH 57/STH 167-MEQUON RD

0.1M N JCT CTH W, Ozaukee, WI

Built 1966 ADT: 28,000

LRD ARROWHEAD RD (

Unknown

Over: IH 43/STH 32/STH 57

0.9M N JCT STH 60 TO W, Ozaukee, WI

Built 1967 ADT: 42,700

CTH V NB

Unknown

Over: IH 43/STH 57

1.6M N JCT STH 60 TO W, Ozaukee, WI

Built 1975 ADT: 45,200

STH 32 SB

Unknown

Over: IH 43-STH 57

1.6M N JCT STH 60 TO W, Ozaukee, WI

Built 1975 ADT: 45,200

LRD ULAO PKWY

Unknown

Over: IH 43/STH 57

1.3M N JCT STH 32 TO N, Ozaukee, WI

Built 1972 ADT: 43,200

LRD SAUK RD

Unknown

Over: IH 43-STH 57

2.3M N JCT STH 32 TO N, Ozaukee, WI

Built 1972 ADT: 42,400

IH 43 NB-STH 57 NB

Unknown

Over: STH 33

0.3M E JCT CTH W, Ozaukee, WI

Built 1971 ADT: 16,000

IH 43 SB-STH 57 SB

Unknown

Over: STH 33

0.3M E JCT CTH W, Ozaukee, WI

Built 1971 ADT: 16,000

IH 43 SB

Unknown

Over: STH 57 NB

1.3M N JCT STH 33 TO E, Ozaukee, WI

Built 1974 ADT: 5,600

LRD MINK RANCH RD

Unknown

Over: STH 57

1.0M N JCT IH 43 TO N, Ozaukee, WI

Built 1974 ADT: 11,100

IH 43 NB

Unknown

Over: CTH KK

0.4M N JCT CTH LL, Ozaukee, WI

Built 1974 ADT: 1,400

IH 43 SB

Unknown

Over: CTH KK

0.4M N JCT CTH LL, Ozaukee, WI

Built 1974 ADT: 1,400

CTH B

Unknown

Over: IH 43

3.2M N JCT STH 33 TO E, Ozaukee, WI

Built 1974 ADT: 30,800

STH 32 SB

Unknown

Over: IH 43

4.2M N JCT STH 33 TO E, Ozaukee, WI

Built 1974 ADT: 27,100

IH 43/STH 32 NB

Unknown

Over: LRD HIGHLAND LN

0.1M S JCT CTH LL, Ozaukee, WI

Built 1974 ADT: 100

IH 43/STH 32 SB

Unknown

Over: LRD HIGHLAND LN

0.1M S JCT CTH LL, Ozaukee, WI

Built 1974 ADT: 100

IH 43 NB-STH 32 NB

Unknown

Over: CTH LL

1.4M S JCT CTH P, Ozaukee, WI

Built 1974 ADT: 1,400

IH 43 SB-STH 32 SB

Unknown

Over: CTH LL

1.4M S JCT CTH P, Ozaukee, WI

Built 1974 ADT: 1,300

IH 43 NB/STH 32 NB

Unknown

Over: LRD LAKE DR

1.7M E JCT CTH KW, Ozaukee, WI

Built 1974 ADT: 100

IH 43/STH 32 SB

Unknown

Over: LRD LAKE DR

1.7M E JCT CTH KW, Ozaukee, WI

Built 1974 ADT: 100

CTH P

Unknown

Over: IH 43-STH 32

4.0M N JCT STH 32 TO S, Ozaukee, WI

Built 1974 ADT: 26,600

LRD SANDY BEACH RD

Unknown

Over: IH 43-STH 32

5.0M N JCT STH 32 TO S, Ozaukee, WI

Built 1974 ADT: 28,600

Showing 2,001-2,050 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.