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: PUMPKIN HOLLOW CREEK

4.3M E JCT CTH T, Richland, WI

Built 1991 Load: 32.4 t ADT: 446

STH 80-S MAIN ST

Good

Over: DRAINAGE CHANNEL

0.9M N JCT CTH OO, Richland, WI

Built 1993 Load: 32.4 t ADT: 3,158

LRD INDUSTRIAL DRI

Good

Over: PINE RIVER WATERSHED

0.1M E JCT STH 80, Richland, WI

Built 1992 Load: 32.4 t ADT: 1,125

LRD SEMINARY ST

Good

Over: PINE RIVER

0.2M W JCT USH 14, Richland, WI

Built 1993 Load: 32.4 t ADT: 3,700

LRD CENTURY RD

Good

Over: BYRDS CREEK

1.2M E JCT CTH X, Richland, WI

Built 1998 Load: 32.4 t ADT: 21

LRD SOUTH STREET (

Good

Over: PINE RIVER WATERSHED

CITY OF RICHLAND CENTER, Richland, WI

Built 1994 Load: 32.4 t ADT: 1

STH 60

Good

Over: INDIAN CREEK

1.4M E JCT STH 80, Richland, WI

Built 2002 Load: 32.4 t ADT: 1,400

STH 56

Good

Over: TRIB TO CAMP CREEK

3.2 MI E OF STH 131, Richland, WI

Built 2004 Load: 32.4 t ADT: 490

STH 56

Good

Over: BR. OF FANCY CREEK

0.65M E OF JCT CTH Z, Richland, WI

Built 2004 Load: 32.4 t ADT: 490

STH 60

Good

Over: UNNAMED TRIB

2.5M E JCT CTH T, Richland, WI

Built 2005 Load: 32.4 t ADT: 2,100

CTH F

Good

Over: TAYLOR HOLLOW CR

2.2M NORTH OF STH 60, Richland, WI

Built 2007 Load: 32.4 t ADT: 334

STH 130

Good

Over: BRANCH OF BEAR CREEK

0.09 MI N JCT CTH T, Richland, WI

Built 1980 Load: 32.4 t ADT: 270

USH 51

Good

Over: BR ROCK RIVER

4.1M N JCT STH 81, Rock, WI

Built 1973 Load: 32.4 t ADT: 9,700

STH 67

Good

Over: BR DRY CREEK

1.1 M W JCT CTH P, Rock, WI

Built 1978 Load: 32.4 t ADT: 1,900

USH 14-STH 11

Good

Over: BR BLACKHAWK CREEK

3.3M E JCT CTH O, Rock, WI

Built 1982 Load: 32.4 t ADT: 9,600

STH 213

Good

Over: BR RACCOON CREEK

2.0M N JCT STH 81, Rock, WI

Built 1984 Load: 32.4 t ADT: 2,600

STH 81

Good

Over: BR RACCOON CREEK

2.6M E JCT CTH K, Rock, WI

Built 1990 Load: 32.4 t ADT: 3,300

LRD VICKERMAN RD

Good

Over: OTTER CREEK

1.2M N JCT STH 59, Rock, WI

Built 1990 Load: 32.4 t ADT: 223

LRD CREEK RD

Good

Over: BR TURTLE CREEK

0.5M N JCT CTH J, Rock, WI

Built 1996 Load: 32.4 t ADT: 880

LRD TURTLE TOWNHAL

Good

Over: SPRING BROOK

0.3M S JCT CTH X, Rock, WI

Built 1999 Load: 32.4 t ADT: 622

STH 11

Good

Over: DRAINAGE

0.7M W JCT USH 51, Rock, WI

Built 2001 Load: 32.4 t ADT: 5,100

LRD WUTHERING HILL

Good

Over: SPRING BROOK CREEK

CITY OF JANESVILLE, Rock, WI

Built 1992 Load: 32.4 t ADT: 2,300

CTH M

Good

Over: BR ALLEN CREEK

0.1M N JCT STH 213, Rock, WI

Built 2009 Load: 32.4 t ADT: 1,800

CTH A

Good

Over: BR BLACKHAWK CREEK

2.5M E JCT USH 14, Rock, WI

Built 2009 Load: 32.4 t ADT: 2,900

LRD READ RD

Good

Over: BR ROCK RIVER

3.1M S JCT CTH O, Rock, WI

Built 2011 Load: 32.4 t ADT: 367

CTH J

Good

Over: TURTLE CREEK TRIBUTARY 2

0.9M E JCT CTH S, Rock, WI

Built 2011 Load: 32.4 t ADT: 625

STH 213

Good

Over: BR ALLEN CREEK

1.2M N JCT CTH A, Rock, WI

Built 2021 Load: 32.4 t ADT: 2,300

IH 39 /IH 90

Good

Over: BR ROCK RIVER

1.1M S JCT STH 11, Rock, WI

Built 2018 Load: 32.4 t ADT: 57,700

CTH MM

Good

Over: BR BLACKHAWK CREEK

1.9M E JCT USH 14, Rock, WI

Built 2017 Load: 32.4 t ADT: 600

LRD MINERAL POINT

Good

Over: FISHER CREEK

2.4M E JCT STH 184, Rock, WI

Built 2020 Load: 32.4 t ADT: 755

LRD HOPKINS ROAD

Good

Over: TRIB. TO SUGAR RIVER

0.5M S JCT BELOIT RD, Rock, WI

Built 2003 Load: 32.4 t ADT: 107

LRD NORTH TOWN LIN

Good

Over: TRIB. TO WILLOW CREEK

2.7M E. JCT CTH T, Rock, WI

Built 2003 Load: 32.4 t ADT: 107

STH 40

Good

Over: ALDER CREEK

0.1M N JCT CTH H TO N, Rusk, WI

Built 1977 Load: 32.4 t ADT: 880

STH 40

Good

Over: POTATO CREEK

1.3M N JCT CTH D, Rusk, WI

Built 1983 Load: 32.4 t ADT: 810

STH 40

Good

Over: SWIFT CREEK

9.8M N JCT CTH M, Rusk, WI

Built 1983 Load: 32.4 t ADT: 810

LRD BROKEN ARROW R

Good

Over: DEER TAIL CREEK

1.1M W JCT STH 27-113, Rusk, WI

Built 1987 Load: 32.4 t ADT: 206

STH 27

Good

Over: FLAMBEAU RIVER

2.1M N JCT CTH P, Rusk, WI

Built 1988 Load: 32.4 t ADT: 5,500

STH 27

Good

Over: LITTLE THORNAPPLE RIVER

0.7M N JCT CTH J TO E, Rusk, WI

Built 1990 Load: 32.4 t ADT: 1,600

CTH VV

Good

Over: JUMP RIVER

0.2M S JCT CTY D--41, Rusk, WI

Built 1998 Load: 32.4 t ADT: 476

LRD PIONEER RD

Good

Over: ALDER CREEK

1.0M N JCT CTY D-92, Rusk, WI

Built 1998 Load: 32.4 t ADT: 88

LRD DALEY RD

Good

Over: DEER TAIL CREEK

1.2M W JCT STH 27-114, Rusk, WI

Built 2001 Load: 32.4 t ADT: 21

CTH G

Good

Over: SKUNK CREEK

1.3M S JCT CTH I--42, Rusk, WI

Built 2011 Load: 32.4 t ADT: 663

STH 136

Good

Over: BARABOO RIVER

4.1M E JCT STH 23, Sauk, WI

Built 1978 Load: 32.4 t ADT: 850

LRD POINT OF ROCKS

Good

Over: BR. SKILLET CREEK

2.6M E JCT STH 33 TO E, Sauk, WI

Built 1983 Load: 32.4 t ADT: 100

LRD QUAKER VALLEY

Good

Over: LITTLE BARABOO RIVER

0.3M S JCT CTH G, Sauk, WI

Built 1985 Load: 32.4 t ADT: 123

STH 33

Good

Over: BARABOO RIVER

0.9M E JCT STH 58 TO S, Sauk, WI

Built 1998 Load: 32.4 t ADT: 4,200

LRD TUCKERTOWN ROA

Good

Over: NARROWS CREEK

0.1M S JCT CTH S, Sauk, WI

Built 1988 Load: 32.4 t ADT: 61

LRD RIVER ROAD

Good

Over: OTTER CREEK

0.7M E JCT STH 60, Sauk, WI

Built 1988 Load: 32.4 t ADT: 1,179

LRD STONES POCKET

Good

Over: OTTER CREEK

0.2M N JCT CTH C, Sauk, WI

Built 1988 Load: 32.4 t ADT: 133

STH 33

Good

Over: SILVER CREEK

2.1M E JCT CTH V, Sauk, WI

Built 1998 Load: 32.4 t ADT: 4,200

Showing 9,301-9,350 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.