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 EF (HARTLING R

Poor

Over: BARK RIVER

0.5M E JCT CTH E, Waukesha, WI

Built 1984 Load: 19.4 t ADT: 1,400

CTH I (BELOIT ROAD

Poor

Over: CALHOUN CREEK

0.2M W OF JCT CTH O, Waukesha, WI

Built 1976 Load: 19.4 t ADT: 9,000

LRD LAPHAM ST

Poor

Over: OCONOMOWOC RIVER

0.9M S JCT CTH Z, Waukesha, WI

Built 1950 Load: 19.4 t ADT: 101

LRD CAMPBELL DR

Poor

Over: BUTLER DITCH

0.3M S JCT CTH VV, Waukesha, WI

Built 1988 Load: 19.4 t ADT: 2,837

CTH JJ (CAPITOL DR

Poor

Over: PEWAUKEE LAKE TRIB

0.7M W JCT CTH KF, Waukesha, WI

Built 1940 Load: 19.4 t ADT: 1,900

CTH Z

Poor

Over: SCUPPERNONG RIVER

0.4M N JCT STH 59, Waukesha, WI

Built 1978 Load: 19.4 t ADT: 471

LRD GLENDALE RD

Poor

Over: PEBBLE BROOK

0.9M W JCT STH 164, Waukesha, WI

Built 1984 Load: 19.4 t ADT: 440

LRD W 35TH AVE

Poor

Over: MERRITS CREEK

0.3M W JCT CTH I, Winnebago, WI

Built 1980 Load: 19.4 t ADT: 153

LRD ONPRATT TRAIL

Poor

Over: LAKE WINNEBAGO

0.1M E JCT PARKWAY AVE, Winnebago, WI

Built 1921 Load: 19.4 t ADT: 115

CTH A

Poor

Over: BR YELLOW RIVER

0.1M S JCT CTH C, Wood, WI

Built 1936 Load: 19.4 t ADT: 2,700

LRD 1ST AVE

Poor

Over: LOWER PINE CREEK

0.9M E JCT STH 25, Barron, WI

Built 1978 Load: 21.1 t ADT: 58

LRD BLUFF SIDING F

Poor

Over: CHICKEN VALLEY CREEK

0.1M N JCT STH 35-54, Buffalo, WI

Built 1928 Load: 21.1 t ADT: 117

CTH G

Poor

Over: BR EAGLE RIVER

3.3M N JCT STH 95, Buffalo, WI

Built 1969 Load: 21.1 t ADT: 303

LRD OWEN RD

Poor

Over: OWENS VALLEY CREEK

0.2M E JCT CTH F, Buffalo, WI

Built 1973 Load: 21.1 t ADT: 47

LRD 240TH STREET

Poor

Over: PAINT CREEK

0.7 M N 30TH AVENUE, Chippewa, WI

Built 1948 Load: 21.1 t ADT: 200

CTH M

Poor

Over: SPRING BROOK

0.2 M N 225TH AVENUE, Chippewa, WI

Built 1935 Load: 21.1 t ADT: 290

CTH M

Poor

Over: BIG ELK CREEK

0.1 M E 10TH STREET, Chippewa, WI

Built 1940 Load: 21.1 t ADT: 330

LRD WILLOW RD

Poor

Over: S FK EAU CLAIRE RIVER

0.3M E JCT CTH X, Clark, WI

Built 1959 Load: 21.1 t ADT: 58

LRD N HILINE AVE

Poor

Over: BR DILL CREEK

0.7M N JCT CTH N, Clark, WI

Built 1960 Load: 21.1 t ADT: 116

CTH H

Poor

Over: PLEASANT VALLEY BRANCH

0.7M S JCT CTH A, Dane, WI

Built 1963 Load: 21.1 t ADT: 724

LRD REEVE RD

Poor

Over: E BR BLUE MOUNDS CREEK

3.7M W JCT CTH F, Dane, WI

Built 1974 Load: 21.1 t ADT: 176

CTH AY

Poor

Over: E BR ROCK RIVER

1.0M S JCT STH 28, Dodge, WI

Built 1953 Load: 21.1 t ADT: 840

CTH N

Poor

Over: BUTLER CREEK

1.2M E JCT CTH P, Dodge, WI

Built 1949 Load: 21.1 t ADT: 880

CTH D

Poor

Over: HAY RIVER

1.5M E JCT CTH G, Dunn, WI

Built 1962 Load: 21.1 t ADT: 1,308

CTH BB

Poor

Over: TAINTER LAKE

1.7M E JCT STH 25, Dunn, WI

Built 1935 Load: 21.1 t ADT: 2,231

CTH C

Poor

Over: MUDDY CREEK

0.67M E JCT CTH J, Dunn, WI

Built 1966 Load: 21.1 t ADT: 1,400

CTH D

Poor

Over: EAU CLAIRE RIVER

0.6M W CTH N, Eau Claire, WI

Built 1948 Load: 21.1 t ADT: 1,385

LRD TOWN LINE RD

Poor

Over: HAY CREEK

2.6M E CTH X, Eau Claire, WI

Built 1967 Load: 21.1 t ADT: 106

LRD WESTERN AVE

Poor

Over: E BR FOND DU LAC RIVER

1.6M NE JCT I-41 AND S. M, Fond du Lac, WI

Built 1973 Load: 21.1 t ADT: 4,000

CTH M

Poor

Over: BR PECATONICA RIVER

0.6M N JCT CTH B, Green, WI

Built 1961 Load: 21.1 t ADT: 790

CTH A MILLS ST

Poor

Over: PUCKYAN RIVER

0.9M S JCT STH 23, Green Lake, WI

Built 1929 Load: 21.1 t ADT: 1,600

CTH E

Poor

Over: E PECATONICA RIVER

3.1M W JCT STH 39, Iowa, WI

Built 1940 Load: 21.1 t ADT: 350

LRD CORNING DR

Poor

Over: DEVILS CREEK

0.8M S JCT CTH Z, Lincoln, WI

Built 1920 Load: 21.1 t ADT: 72

CTH N

Poor

Over: HAMAN CREEK

1.2M W JCT STH 97, Marathon, WI

Built 1952 Load: 21.1 t ADT: 520

CTH U

Poor

Over: LITTLE RIB RIVER

1.7M E JCT CTH O, Marathon, WI

Built 1957 Load: 21.1 t ADT: 1,983

CTH L

Poor

Over: LITTLE RIB RIVER

2.0M W JCT CTH O, Marathon, WI

Built 1957 Load: 21.1 t ADT: 635

CTH T

Poor

Over: MCGIVERN CREEK

1.3M S JCT STH 97, Marathon, WI

Built 1957 Load: 21.1 t ADT: 766

CTH P

Poor

Over: FENWOOD CREEK

0.3M W JCT CTH M TO N, Marathon, WI

Built 1959 Load: 21.1 t ADT: 563

CTH A

Poor

Over: W BR EAU PLEINE RIVER

1.9M E JCT STH 13, Marathon, WI

Built 1962 Load: 21.1 t ADT: 783

CTH J

Poor

Over: TRAPPE RIVER

0.7M S JCT CTH G, Marathon, WI

Built 1964 Load: 21.1 t ADT: 620

LRD 96TH AVE

Poor

Over: LITTLE RIB RIVER

1.5M N JCT CTH U, Marathon, WI

Built 1941 Load: 21.1 t ADT: 93

CTH Q

Poor

Over: E BR BIG SANDY CREEK

0.9M N JCT CTH Z, Marathon, WI

Built 1967 Load: 21.1 t ADT: 601

CTH JJ

Poor

Over: MENOMINEE RIVER

2.7M E JCT STH 180, Marinette, WI

Built 1967 Load: 21.1 t ADT: 900

CTH T

Poor

Over: MORRIS CREEK

0.7M S JCT STH 71, Monroe, WI

Built 1963 Load: 21.1 t ADT: 630

LRD INTERIOR RD

Poor

Over: LEMONWEIR CREEK

2.6M S JCT STH 16, Monroe, WI

Built 1928 Load: 21.1 t ADT: 58

LRD 770TH AVE

Poor

Over: TRIMBELLE RIVER

0.2M W JCT CTH W, Pierce, WI

Built 1979 Load: 21.1 t ADT: 93

LRD 60TH AVE

Poor

Over: BULL CREEK

0.3M E JCT CTH E, Polk, WI

Built 1974 Load: 21.1 t ADT: 86

LRD SQUAW CREEK RD

Poor

Over: SQUAW CREEK

1.2M N JCT CTH H, Price, WI

Built 1920 Load: 21.1 t ADT: 283

LRD PRENTICE RD

Poor

Over: DOUGLAS CREEK

2.6M S JCT STH 13, Price, WI

Built 1929 Load: 21.1 t ADT: 89

CTH E

Poor

Over: MILL CREEK

4.3M E JCT CTH G, Richland, WI

Built 1952 Load: 21.1 t ADT: 375

Showing 14,201-14,250 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.