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 Z

Fair

Over: FANCY CREEK

0.2M S JCT STH 56, Richland, WI

Built 1964 Load: 24.3 t ADT: 110

STH 58-CAZENOVIA S

Fair

Over: LIT BARABOO RIVER

0.2M N JCT CTH V, Richland, WI

Built 1967 Load: 24.3 t ADT: 1,100

CTH D

Fair

Over: BR PINE RIVER

0.1M E JCT STH 80, Richland, WI

Built 1968 Load: 24.3 t ADT: 512

STH 80

Fair

Over: MELANCTHON CREEK

0.8M N JCT CTH C, Richland, WI

Built 1976 Load: 24.3 t ADT: 1,400

STH 56

Fair

Over: CAMP CREEK

1.0M E JCT STH 131 TO N, Richland, WI

Built 1975 Load: 24.3 t ADT: 1,100

STH 131

Fair

Over: CHURCH CREEK

1.8M N JCT STH 56 TO E, Richland, WI

Built 1972 Load: 24.3 t ADT: 2,200

CTH U

Fair

Over: KNAPP CREEK

1.2M W JCT CTH F, Richland, WI

Built 1970 Load: 24.3 t ADT: 87

CTH W

Fair

Over: GOBIN HOLLOW CREEK

1.9M N JCT STH 60, Richland, WI

Built 1964 Load: 24.3 t ADT: 163

LRD SHELLINGTON DR

Fair

Over: PINE RIVER

0.2M S JCT STH 80, Richland, WI

Built 1967 Load: 24.3 t ADT: 23

CTH II

Fair

Over: HAWKINS CREEK

0.1M N JCT CTH I, Richland, WI

Built 1945 Load: 24.3 t ADT: 316

LRD SAWMILL RD

Fair

Over: PINE RIVER

0.3M E JCT CTH TB, Richland, WI

Built 1969 Load: 24.3 t ADT: 23

LRD CHERRY VALLEY

Fair

Over: CHERRY VALLEY CREEK

1.4M E JCT CTH A, Richland, WI

Built 1930 Load: 24.3 t ADT: 94

CTH O

Fair

Over: BR MILL CREEK

0.6M N JCT STH 80, Richland, WI

Built 1958 Load: 24.3 t ADT: 446

CTH MM

Fair

Over: BEAR CREEK

4.2M N JCT STH 56, Richland, WI

Built 1940 Load: 24.3 t ADT: 119

LRD BUFTON HOLLOW

Fair

Over: BR CAMP CREEK

0.8M E JCT STH 56, Richland, WI

Built 1940 Load: 24.3 t ADT: 47

CTH D

Fair

Over: BR WILLOW CREEK

0.9M W JCT STH 58, Richland, WI

Built 1966 Load: 24.3 t ADT: 239

CTH BA

Fair

Over: BR WILLOW CREEK

0.3M S JCT STH 58, Richland, WI

Built 1955 Load: 24.3 t ADT: 763

LRD LEBANSKY RD

Fair

Over: LEBANSKY CREEK

1.4M N JCT CTH C, Richland, WI

Built 1979 Load: 24.3 t ADT: 94

LRD BUCKHORN LANE

Fair

Over: BR BRUSH CREEK

0.1M N JCT USH 14, Richland, WI

Built 1960 Load: 24.3 t ADT: 10

CTH TB

Fair

Over: BR PINE RIVER

2.5M S JCT CTH O, Richland, WI

Built 1950 Load: 24.3 t ADT: 207

CTH J

Fair

Over: TURTLE CREEK OVERFLOW

0.2M N JCT CTH S, Rock, WI

Built 1953 Load: 24.3 t ADT: 1,035

LRD MARSH RD

Fair

Over: BASS CREEK

0.8M N JCT CTH B, Rock, WI

Built 1980 Load: 24.3 t ADT: 97

LRD BURDICK RD

Fair

Over: MARSH CREEK

1.0M S JCT USH 14, Rock, WI

Built 1982 Load: 24.3 t ADT: 264

LRD MILTON SHOPIER

Fair

Over: BLACKHAWK CREEK

1.2M N JCT CTH MM, Rock, WI

Built 1982 Load: 24.3 t ADT: 58

LRD LIMA CENTER RD

Fair

Over: JOHNSTOWN CREEK

2.8M N JCT CTH A, Rock, WI

Built 1970 Load: 24.3 t ADT: 88

LRD CARVERS RD

Fair

Over: SPRING CREEK

3.8M S JCT USH 14, Rock, WI

Built 1962 Load: 24.3 t ADT: 431

LRD BELOIT-NEWARK

Fair

Over: SUGAR RIVER

0.9M E JCT CTH T, Rock, WI

Built 1982 Load: 24.3 t ADT: 176

CTH 6TH ST CTH D

Fair

Over: LENIGAN CREEK

0.5M N JCT STH 81, Rock, WI

Built 1948 Load: 24.3 t ADT: 11,300

LRD WRIGHT RD

Fair

Over: SPRING BROOK

0.1M N JCT CTH MM, Rock, WI

Built 1969 Load: 24.3 t ADT: 8,300

LRD PALMER DR

Fair

Over: SPRING BROOK

0.1M N JCT STH 11, Rock, WI

Built 1935 Load: 24.3 t ADT: 2,500

LRD S RIVER RD

Fair

Over: BR ROCK RIVER

1.3M E JCT CTH D, Rock, WI

Built 1970 Load: 24.3 t ADT: 738

LRD MINERAL POINT

Fair

Over: BR STEVENS CREEK

2.3M W JCT STH 184, Rock, WI

Built 1977 Load: 24.3 t ADT: 176

LRD BRANDHERM RD

Fair

Over: BRA SUGAR RIVER

1.8M W JCT CTH K, Rock, WI

Built 1974 Load: 24.3 t ADT: 94

LRD SPRING CREEK R

Fair

Over: BRA RACCOON CREEK

1.1M W JCT STH 213, Rock, WI

Built 1976 Load: 24.3 t ADT: 450

LRD SUMMERVILLE RD

Fair

Over: BRA LITTLE TURTLE CRK

0.2M S JCT CTH X, Rock, WI

Built 1977 Load: 24.3 t ADT: 47

LRD OLD 92 ROAD

Fair

Over: NORWEGIAN CREEK

1.3M N JCT CTH B, Rock, WI

Built 1974 Load: 24.3 t ADT: 23

LRD LARID ROAD

Fair

Over: RACCOON CREEK

1.5M E JCT CTH K, Rock, WI

Built 1972 Load: 24.3 t ADT: 70

LRD STERNS RD (DEA

Fair

Over: BR BADFISH CREEK

1.0M W JCT STH 59, Rock, WI

Built 1945 Load: 24.3 t ADT: 2

STH 73

Fair

Over: LITTLE JUMP RIVER

5.8M N JCT STH 194, Rusk, WI

Built 1965 Load: 24.3 t ADT: 460

LRD WINTER ROAD

Fair

Over: THORNAPPLE RIVER

0.6M N JCT CTH J-56, Rusk, WI

Built 1985 Load: 24.3 t ADT: 56

LRD EDMING RD

Fair

Over: N FK MAIN CREEK

1.0M S JCT USH 8-109, Rusk, WI

Built 1985 Load: 24.3 t ADT: 604

LRD RANGE LINE RD

Fair

Over: MAIN CREEK

0.9M S JCT CTH I-89, Rusk, WI

Built 1950 Load: 24.3 t ADT: 86

LRD PRESTON AVE

Fair

Over: BABBS CREEK

0.1M N JCT STH 33, Sauk, WI

Built 1970 Load: 24.3 t ADT: 117

LRD WESTBROOK DR

Fair

Over: HONEY CREEK

0.1M E JCT STH 23, Sauk, WI

Built 1977 Load: 24.3 t ADT: 654

LRD CROAL RD

Fair

Over: BEAR CREEK

1.6M N JCT STH 130, Sauk, WI

Built 1930 Load: 24.3 t ADT: 26

LRD CROAL RD

Fair

Over: BEAR CREEK

0.1M E JCT STH 130, Sauk, WI

Built 1930 Load: 24.3 t ADT: 56

LRD MARBLE QUARRY

Fair

Over: BR BEAR CREEK

1.9M W JCT CTH G, Sauk, WI

Built 1930 Load: 24.3 t ADT: 57

CTH C

Fair

Over: E BR HONEY CREEK

3.7M E JCT CTH PF, Sauk, WI

Built 1925 Load: 24.3 t ADT: 420

CTH G

Fair

Over: BR HILL POINT CREEK

0.1M S JCT STH 154, Sauk, WI

Built 2002 Load: 24.3 t ADT: 350

LRD SUNRISE RD

Fair

Over: BR NARROWS CREEK

1.2M E JCT STH 23, Sauk, WI

Built 1950 Load: 24.3 t ADT: 180

Showing 4,101-4,150 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.