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 N

Good

Over: GRANT RIVER

1.4M N JCT STH 133, Grant, WI

Built 1999 Load: 35.6 t ADT: 352

CTH T

Good

Over: BLUE RIVER

0.6M N JCT STH 133, Grant, WI

Built 2001 Load: 35.6 t ADT: 1,505

USH 61

Good

Over: CROOKED CREEK

5.4M N JCT CTH T, Grant, WI

Built 2002 Load: 35.6 t ADT: 4,000

LRD MINERAL ST

Good

Over: ROUNDTREE BRANCH

0.3M W JCT USH 151, Grant, WI

Built 2002 Load: 35.6 t ADT: 3,210

CTH U (BEETOWN SC

Good

Over: BEETOWN BRANCH

0.3M N JCT STH 81, Grant, WI

Built 2003 Load: 35.6 t ADT: 740

USH 151

Good

Over: ROUNDTREE BRANCH CREEK

0.2M N JCT STH 80, Grant, WI

Built 2005 Load: 35.6 t ADT: 9,495

LRD LINK RD

Good

Over: ROGERS BRANCH

0.8M W JCT USH 61, Grant, WI

Built 2006 Load: 35.6 t ADT: 105

LRD SHADY HOLLOW L

Good

Over: DRY RUN

0.2 MI NORTH OF ROSENDALE, Grant, WI

Built 2014 Load: 35.6 t ADT: 100

LRD IRISH HOLLOW R

Good

Over: MARLOW BR

1.3M N JCT CTH U, Grant, WI

Built 1988 Load: 35.6 t ADT: 78

LRD PARK RD

Good

Over: SEARLES CREEK

2.2M N JCT CTH F, Green, WI

Built 1984 Load: 35.6 t ADT: 147

LRD YORK CENTER RD

Good

Over: SAWMILL CREEK

1.6M S JCT STH 39, Green, WI

Built 1986 Load: 35.6 t ADT: 105

LRD GOULD HILL RD

Good

Over: SAWMILL CREEK

1.8M S JCT CTH H, Green, WI

Built 1988 Load: 35.6 t ADT: 94

LRD HIAWATHA RD

Good

Over: SKINNER CREEK

0.7M S JCT STH 81, Green, WI

Built 1988 Load: 35.6 t ADT: 52

LRD RIVER RD

Good

Over: LITTLE SUGAR RIVER

0.4M S JCT CTH EE, Green, WI

Built 1991 Load: 35.6 t ADT: 105

CTH X

Good

Over: STORY CREEK

1.0M S JCT STH 92, Green, WI

Built 1993 Load: 35.6 t ADT: 189

STH 11

Good

Over: PECATONICA RIVER

4.0M E JCT STH 176 TO N, Green, WI

Built 1998 Load: 35.6 t ADT: 4,700

CTH F

Good

Over: SEARLES CREEK

0.1M S JCT CTH FF, Green, WI

Built 1994 Load: 35.6 t ADT: 630

LRD DUNCAN HILL RD

Good

Over: JOCKEY HOLLOW CR

1.0 M NORTH CTH Y, Green, WI

Built 1997 Load: 35.6 t ADT: 109

CTH B

Good

Over: PECATONICA RIVER

0.2M W JCT CTH M, Green, WI

Built 2003 Load: 35.6 t ADT: 611

CTH M

Good

Over: PECATONICA RIVER

3.3M S JCT CTH B, Green, WI

Built 2004 Load: 35.6 t ADT: 443

LRD YARWOOD RD

Good

Over: LIBERTY CREEK

0.8M E JCT CTH E, Green, WI

Built 2005 Load: 35.6 t ADT: 105

STH 44-MARGARET ST

Good

Over: GRAND RIVER

2.4M N JCT STH 73 TO S, Green Lake, WI

Built 1997 Load: 35.6 t ADT: 2,200

CTH Q

Good

Over: GRAND RIVER

0.76M S JCT STH 44, Green Lake, WI

Built 2021 Load: 35.6 t ADT: 747

CTH Q

Good

Over: OTTER CREEK

0.1M W JCT CTH II, Iowa, WI

Built 1959 Load: 35.6 t ADT: 538

STH 23

Good

Over: BR LOWERY CREEK

8.2M E JCT STH 130, Iowa, WI

Built 1988 Load: 35.6 t ADT: 3,600

LRD COUNTY LINE RD

Good

Over: YELLOWSTONE RIVER

2.3M W JCT CTH F, Iowa, WI

Built 1988 Load: 35.6 t ADT: 124

CTH K

Good

Over: GLENN VALLEY BRANCH

1.8M N JCT CTH DD, Iowa, WI

Built 1998 Load: 35.6 t ADT: 305

LRD PRAIRIE RD

Good

Over: RIDGEWAY BRANCH

0.2M W JCT CTH H, Iowa, WI

Built 2000 Load: 35.6 t ADT: 249

LRD WEAVER RD

Good

Over: RUSH CREEK

3.0M S JCT STH 23, Iowa, WI

Built 2000 Load: 35.6 t ADT: 145

CTH P

Good

Over: BR SPRING VALLEY CREEK

0.4M N JCT CTH I, Iowa, WI

Built 2000 Load: 35.6 t ADT: 260

LRD MIESS RD

Good

Over: BR OTTER CREEK

0.8M E JCT CTH II, Iowa, WI

Built 2002 Load: 35.6 t ADT: 62

LRD SPRING CREEK R

Good

Over: BLUE MOUNDS BRANCH

1.8M S JCT CTH F, Iowa, WI

Built 1985 Load: 35.6 t ADT: 62

USH 12-STH 27/54-M

Good

Over: BLACK RIVER

0.1M E JCT STH 54 TO W, Jackson, WI

Built 1980 Load: 35.6 t ADT: 18,825

LRD BLAIR RD

Good

Over: FRENCH CREEK

1.1M E JCT CTH N, Jackson, WI

Built 1988 Load: 35.6 t ADT: 79

STH 95

Good

Over: VOSSE COULEE CREEK

0.3M E JCT CTH W, Jackson, WI

Built 1996 Load: 35.6 t ADT: 3,100

LRD LEICHT RD

Good

Over: LEVIS CREEK

0.1M N JCT STH 54, Jackson, WI

Built 1993 Load: 35.6 t ADT: 281

LRD ALMA CENTER RO

Good

Over: W FK HALLS CREEK

0.3M N JCT CTH F, Jackson, WI

Built 2002 Load: 35.6 t ADT: 237

CTH FF

Good

Over: BR BEAVER CREEK

2.6M N JCT STH 121, Jackson, WI

Built 2002 Load: 35.6 t ADT: 295

IH 94 EB

Good

Over: PIGEON CREEK

10.1M E JCT USH 10 TO E, Jackson, WI

Built 2005 Load: 35.6 t ADT: 12,700

IH 94 WB

Good

Over: PIGEON CREEK

0.5M W JCT STH 121 TO E, Jackson, WI

Built 2005 Load: 35.6 t ADT: 12,700

LRD CUT OFF RD

Good

Over: BRANCH DOUGLAS CREEK

.1M E JCT STH 54, Jackson, WI

Built 2015 Load: 35.6 t ADT: 35

STH 95

Good

Over: E FK HALLS CREEK

0.5M E JCT USH 12, Jackson, WI

Built 2023 Load: 35.6 t ADT: 2,500

USH 12W-STH B26N-S

Good

Over: ROCK RIVER

0.1M W JCT USH 12 TO E, Jefferson, WI

Built 1997 Load: 35.6 t ADT: 12,300

LRD WEST PUERNER S

Good

Over: ROCK RIVER

CITY OF JEFFERSON, Jefferson, WI

Built 1998 Load: 35.6 t ADT: 2,354

CTH O

Good

Over: KOSHKONONG CR

1.7M S JCT CTH B, Jefferson, WI

Built 2006 Load: 35.6 t ADT: 1,160

STH 80

Good

Over: S BR YELLOW RIVER

2.2M JCT STH58, Juneau, WI

Built 1955 Load: 35.6 t ADT: 4,500

IH 90 EB-IH 94 EB

Good

Over: SEVEN MILE CREEK

3.5M E JCT STH 82 TO E, Juneau, WI

Built 1964 Load: 35.6 t ADT: 17,350

LRD 3RD ST W

Good

Over: BEAVER CREEK

4.4M W JCT STH 173, Juneau, WI

Built 1989 Load: 35.6 t ADT: 52

LRD 5TH ST EAST

Good

Over: CRANBERRY CREEK

0.6M W JCT CTH F, Juneau, WI

Built 1989 Load: 35.6 t ADT: 34

LRD 20TH ST W

Good

Over: LITTLE YELLOW RIVER

2.2M N JCT STH 21, Juneau, WI

Built 1991 Load: 35.6 t ADT: 47

Showing 10,451-10,500 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.