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 DEERE PATH LN

Good

Over: BR MILL CREEK

1.0M N JCT CTH E, Richland, WI

Built 1997 Load: 37.3 t ADT: 10

CTH E

Good

Over: MILL CREEK

5.4M N JCT STH 60, Richland, WI

Built 1998 Load: 37.3 t ADT: 440

LRD TOWN LINE RD

Good

Over: W BR MILL CREEK

0.1M S JCT USH 14, Richland, WI

Built 1998 Load: 37.3 t ADT: 54

STH 80

Good

Over: ASH CREEK

2.5M N JCT CTH Y, Richland, WI

Built 1999 Load: 37.3 t ADT: 3,200

STH 56

Good

Over: FANCY CREEK

2.7M E JCT CTH A, Richland, WI

Built 2000 Load: 37.3 t ADT: 550

LRD OLD BUZZARDVIL

Good

Over: BR MILL CREEK

0.3M W JCT CTH E, Richland, WI

Built 2000 Load: 37.3 t ADT: 50

CTH H

Good

Over: W BR PINE RIVER

0.2M S JCT CTH D, Richland, WI

Built 2001 Load: 37.3 t ADT: 180

LRD TUCK-A-WAY VAL

Good

Over: E BR MILL CREEK

0.1M E JCT CTH Z, Richland, WI

Built 2001 Load: 37.3 t ADT: 43

CTH II

Good

Over: SIMPSON HOLLOW CREEK

1.2M N JCT CTH I, Richland, WI

Built 2001 Load: 37.3 t ADT: 330

LRD NELSON LANE (D

Good

Over: LITTLE WILLOW CREEK

0.1M S JCT CTH N, Richland, WI

Built 2003 Load: 37.3 t ADT: 17

LRD GRINSELL LANE

Good

Over: MELANCTHON CREEK

0.1M E JCT STH 80, Richland, WI

Built 2003 Load: 37.3 t ADT: 33

CTH TB

Good

Over: ASH CREEK

0.7M E JCT CTH O, Richland, WI

Built 2009 Load: 37.3 t ADT: 298

USH 51-E GRAND AVE

Good

Over: TURTLE CREEK

0.1M N ILLINOIS ST LINE, Rock, WI

Built 1997 Load: 37.3 t ADT: 12,400

LRD BELOIT-NEWARK

Good

Over: RACCOON CREEK

1.1M E JCT CTH K, Rock, WI

Built 1996 Load: 37.3 t ADT: 350

LRD WATER ST

Good

Over: ALLEN CREEK

0.1M E JCT STH 59, Rock, WI

Built 1996 Load: 37.3 t ADT: 2,250

LRD TUTTLE ROAD

Good

Over: MARSH CREEK

1.5M N JCT CTH A, Rock, WI

Built 1987 Load: 37.3 t ADT: 1

STH 11 WB

Good

Over: UNION PACIFIC RR

0.9M W JCT IH 90 TO E, Rock, WI

Built 2004 Load: 37.3 t ADT: 7,900

STH 11

Good

Over: TAYLOR CREEK

0.8M E JCT STH 104, Rock, WI

Built 2004 Load: 37.3 t ADT: 4,700

LRD CLEOPHAS RD

Good

Over: E FK RACCOON CREEK

1.9M E JCT CTH H, Rock, WI

Built 2006 Load: 37.3 t ADT: 104

CTH H

Good

Over: BRA COON CREEK

0.2M N JCT STH 81, Rock, WI

Built 2009 Load: 37.3 t ADT: 490

CTH H

Good

Over: BASS CREEK

4.0M N JCT STH 213, Rock, WI

Built 2017 Load: 37.3 t ADT: 803

IH 39 SB / IH 90 E

Good

Over: WIS & CALUMET RR

7.8M E JCT STH 59 TO E, Rock, WI

Built 2021 Load: 37.3 t ADT: 29,500

IH 39 NB/90 WB

Good

Over: WISCONSIN SOUTHERN RAILR

0.5M N JCT STH 26, Rock, WI

Built 2019 Load: 37.3 t ADT: 29,500

LRD WILDERNESS RD

Good

Over: MAIN CREEK

1.7M S JCT CTH P-67, Rusk, WI

Built 1987 Load: 37.3 t ADT: 108

LRD MAPLE RD

Good

Over: LITTLE JUMP RIVER

1.2M E JCT CTH V-78, Rusk, WI

Built 1998 Load: 37.3 t ADT: 59

LRD KRAMER ROAD

Good

Over: POTATO CREEK

0.2M W JCT STH 40-53, Rusk, WI

Built 1999 Load: 37.3 t ADT: 107

CTH H

Good

Over: CLEAR CREEK

1.2M W JCT STH 40, Rusk, WI

Built 2004 Load: 37.3 t ADT: 200

LRD FIRE LANE RD

Good

Over: DEVILS CR

AT DEVILS CREEK, Rusk, WI

Built 2010 Load: 37.3 t ADT: 94

USH 8

Good

Over: SOFT MAPLE CREEK

4.2M E JCT CTH W TO S, Rusk, WI

Built 2018 Load: 37.3 t ADT: 4,100

LRD CLARA AVE

Good

Over: SPRING BROOK

0.1M W JCT USH 12, Sauk, WI

Built 1989 Load: 37.3 t ADT: 164

LRD HEMLOCK RD

Good

Over: BRA N BRA HONEY CREEK

0.8M E JCT CTH PF, Sauk, WI

Built 1988 Load: 37.3 t ADT: 42

LRD DUNSE RD

Good

Over: NARROWS CREEK

0.2M S JCT STH 154, Sauk, WI

Built 1989 Load: 37.3 t ADT: 36

LRD BEIER ROAD

Good

Over: LITTLE BARABOO RIVER

0.1M S JCT CTH EE, Sauk, WI

Built 1990 Load: 37.3 t ADT: 119

LRD COX RD (DEAD E

Good

Over: SEELEY CREEK

0.8M E JCT CTH PF, Sauk, WI

Built 1993 Load: 37.3 t ADT: 24

LRD HAPPY HILL RD

Good

Over: PINE CREEK

2.6M S JCT CTH W TO W, Sauk, WI

Built 1991 Load: 37.3 t ADT: 132

LRD LELAND RD

Good

Over: HONEY CREEK

0.1M E JCT STH 23, Sauk, WI

Built 1993 Load: 37.3 t ADT: 249

CTH C

Good

Over: WILSON CREEK

0.1M N JCT CTH WC, Sauk, WI

Built 1993 Load: 37.3 t ADT: 224

LRD HATCHERY RD

Good

Over: PINE CREEK

1.3M W JCT USH 12, Sauk, WI

Built 1994 Load: 37.3 t ADT: 382

CTH Y

Good

Over: PLUM CREEK

2.0M W JCT CTH G, Sauk, WI

Built 1995 Load: 37.3 t ADT: 179

STH 23

Good

Over: SUGAR GROVE CREEK

0.8M E JCT CTH B, Sauk, WI

Built 1998 Load: 37.3 t ADT: 3,100

LRD FACTORY RD

Good

Over: HONEY CREEK

0.2M N JCT CTH B, Sauk, WI

Built 2000 Load: 37.3 t ADT: 147

STH 136

Good

Over: SKILLET CREEK

2.4M E JCT STH 33 TO E, Sauk, WI

Built 2001 Load: 37.3 t ADT: 14,700

STH 23

Good

Over: DELL CREEK

4.2M E JCT STH 33 TO E, Sauk, WI

Built 2006 Load: 37.3 t ADT: 3,600

CTH PF

Good

Over: OTTER CREEK

1.9M W JCT USH 12, Sauk, WI

Built 2003 Load: 37.3 t ADT: 2,003

LRD KEITEL RD

Good

Over: OTTER CREEK

1.5M W JCT USH 12, Sauk, WI

Built 2004 Load: 37.3 t ADT: 66

LRD PICKEL RD

Good

Over: NARROWS CR TRIB

1.0M E JCT CTH K, Sauk, WI

Built 2004 Load: 37.3 t ADT: 208

STH 154

Good

Over: ELA VALLEY CR

4.9M E JCT STH 130, Sauk, WI

Built 2004 Load: 37.3 t ADT: 1,600

USH 12 EB

Good

Over: BARABOO RIVER

3 M E JCT STH 33, Sauk, WI

Built 2016 Load: 37.3 t ADT: 15,400

LRD BLOCK ROAD (DE

Good

Over: E BR HONEY CREEK

1.1M S JCT CTH PF, Sauk, WI

Built 1987 Load: 37.3 t ADT: 24

STH 27-STH 70

Good

Over: KING CREEK

4.2M N JCT STH 70 TO E, Sawyer, WI

Built 1964 Load: 37.3 t ADT: 1,300

Showing 11,601-11,650 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.