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 F

Poor

Over: YELLOWSTONE RIVER

2.3M N JCT CTH G TO E, Lafayette, WI

Built 1936 Load: 24.3 t ADT: 505

CTH S

Poor

Over: CANON CREEK

0.3M W JCT CTH D, Lafayette, WI

Built 1961 Load: 24.3 t ADT: 140

CTH CS

Poor

Over: SILVER CREEK

1.2M N JCT USH 151, Manitowoc, WI

Built 1969 Load: 24.3 t ADT: 1,800

CTH VV

Poor

Over: LITTLE WOLF RIVER

0.4M E JCT STH 49, Marathon, WI

Built 1962 Load: 24.3 t ADT: 358

CTH M

Poor

Over: BIG EAU PLEINE RIVER

0.3M N JCT STH 153, Marathon, WI

Built 1975 Load: 24.3 t ADT: 635

LRD CHESAK RD

Poor

Over: BR SCOTCH CREEK

0.8M E JCT CTH H, Marathon, WI

Built 1931 Load: 24.3 t ADT: 125

LRD ABT RD

Poor

Over: MOLE BROOK

1.8M N JCT CTH Q, Marathon, WI

Built 1964 Load: 24.3 t ADT: 50

LRD COUNTY LINE RD

Poor

Over: BIG CAIN CREEK

1.6M E JCT CTH WW, Marathon, WI

Built 1965 Load: 24.3 t ADT: 246

CTH Z

Poor

Over: POE CREEK

1.4M E JCT STH 131, Monroe, WI

Built 1937 Load: 24.3 t ADT: 239

CTH J

Poor

Over: LITTLE RIVER

2.1M W JCT CTH WW, Oconto, WI

Built 1976 Load: 24.3 t ADT: 251

CTH KK

Poor

Over: KANKAPOT CREEK

1.7M E JCT STH 55, Outagamie, WI

Built 1948 Load: 24.3 t ADT: 3,997

USH 51-CENTER AVE

Poor

Over: CNW RR

11.3M N JCT STH 81, Rock, WI

Built 1982 Load: 24.3 t ADT: 14,600

CTH A

Poor

Over: THORNAPPLE RIVER

1.8M W JCT STH 27--5, Rusk, WI

Built 1967 Load: 24.3 t ADT: 781

CTH W

Poor

Over: SKILLET CREEK

1.7M W JCT USH 12, Sauk, WI

Built 1939 Load: 24.3 t ADT: 738

LRD PINE BLUFF RD

Poor

Over: NARROWS CREEK

0.3M S JCT CTH CH, Sauk, WI

Built 1967 Load: 24.3 t ADT: 136

CTH M

Poor

Over: S BR EMBARRASS RIVER

0.7M W JCT CTH G TO N, Shawano, WI

Built 1939 Load: 24.3 t ADT: 603

CTH M

Poor

Over: MULLET RIVER

0.1M S JCT CTH PP, Sheboygan, WI

Built 1954 Load: 24.3 t ADT: 152

LRD PERKINS ST

Poor

Over: CORRECTION CREEK

0.4M E JCT STH 13, Taylor, WI

Built 1930 Load: 24.3 t ADT: 29

LRD JAY DR

Poor

Over: N BR MILWAUKEE RIVER

0.8M E JCT CTH X, Washington, WI

Built 1978 Load: 24.3 t ADT: 750

LRD NENNO RD

Poor

Over: BR E BR ROCK RIVER

1.2M S JCT CTH D, Washington, WI

Built 1925 Load: 24.3 t ADT: 58

LRD ENTERPRISE AVE

Poor

Over: POPLAR CREEK

0.3M W JCT CTH Y, Waukesha, WI

Built 1973 Load: 24.3 t ADT: 500

CTH E

Poor

Over: LITTLE SILVER CREEK

0.1M S JCT CTH H, Waushara, WI

Built 1936 Load: 24.3 t ADT: 1,899

CTH D

Poor

Over: WILLOW CREEK

3.6M E JCT STH 49, Waushara, WI

Built 1948 Load: 24.3 t ADT: 670

CTH C

Poor

Over: BR YELLOW RIVER

0.4M E JCT CTH A, Wood, WI

Built 1957 Load: 24.3 t ADT: 510

LRD MAPLE RD

Poor

Over: BR MILL CREEK

2.3M W JCT CTH F, Wood, WI

Built 1950 Load: 24.3 t ADT: 40

LRD CUT OFF ROAD

Poor

Over: BUTTERNUT CREEK

0.2M S JCT CTH B, Ashland, WI

Built 1927 Load: 25.9 t ADT: 94

LRD 14 1/2 AVE

Poor

Over: BARKER CREEK

2.7M E JCT STH 25, Barron, WI

Built 1934 Load: 25.9 t ADT: 94

CTH A

Poor

Over: FARRINGTON CREEK

0.7M W JCT CTH TT, Buffalo, WI

Built 1954 Load: 25.9 t ADT: 726

STH 35

Poor

Over: SLOUGH

0.7M N JCT STH 25 TO N, Buffalo, WI

Built 1933 Load: 25.9 t ADT: 2,100

STH 35

Poor

Over: SLOUGH

1.2M N JCT STH 25 TO N, Buffalo, WI

Built 1933 Load: 25.9 t ADT: 2,100

CTH O

Poor

Over: YELLOW RIVER

0.7 M E CTH EE, Chippewa, WI

Built 1959 Load: 25.9 t ADT: 540

CTH K

Poor

Over: YELLOW RIVER

0.5 M NW 72ND AVENUE, Chippewa, WI

Built 1942 Load: 25.9 t ADT: 1,985

CTH N

Poor

Over: LITTLE DOOR CREEK

0.7M N JCT USH 12, Dane, WI

Built 1954 Load: 25.9 t ADT: 5,800

LRD 1ST ST

Poor

Over: E BR FOND DU LAC RIVER

0.1M W JCT USH 151, Fond du Lac, WI

Built 1968 Load: 25.9 t ADT: 411

CTH C

Poor

Over: HAWK CREEK

0.4M W JCT CTH P, Jackson, WI

Built 1965 Load: 25.9 t ADT: 1,000

CTH K

Poor

Over: NSP CANAL

0.4M S JCT CTH E, Jackson, WI

Built 1973 Load: 25.9 t ADT: 1,100

CTH D

Poor

Over: HALFWAY CREEK

0.3M N JCT CTH W, La Crosse, WI

Built 1969 Load: 25.9 t ADT: 1,100

CTH M

Poor

Over: BR E BR PECATONICA RIVER

2.5M S JCT CTH Y, Lafayette, WI

Built 1948 Load: 25.9 t ADT: 380

LRD TROTTER RD

Poor

Over: TROTTER BRANCH

0.3M N JCT CTH Y, Lafayette, WI

Built 1930 Load: 25.9 t ADT: 47

STH 64

Poor

Over: WOLF RIVER

2.4M E JCT CTH M, Langlade, WI

Built 1948 Load: 25.9 t ADT: 1,600

LRD VAN ALSTINE RD

Poor

Over: S BR OCONTO RIVER

1.9M E JCT STH 55, Langlade, WI

Built 1921 Load: 25.9 t ADT: 17

CTH K

Poor

Over: MUD CREEK

0.4M W JCT CTH W, Manitowoc, WI

Built 1970 Load: 25.9 t ADT: 780

CTH H

Poor

Over: BLACK CREEK

3.5M N JCT CTH U, Marathon, WI

Built 1969 Load: 25.9 t ADT: 806

LRD DUXBURY LANE

Poor

Over: LITTLE EAU PLEINE RIVER

0.7M W JCT CTH F, Marathon, WI

Built 1965 Load: 25.9 t ADT: 56

LRD ROCK RD

Poor

Over: ROCK CREEK

0.5M E JCT STH 97, Marathon, WI

Built 1946 Load: 25.9 t ADT: 50

LRD OLD HWY 8

Poor

Over: S FK JUMP RIVER

0.1M E JCT STH 13, Price, WI

Built 1937 Load: 25.9 t ADT: 355

LRD WILLOW RD

Poor

Over: HONEY CREEK

0.4M E JCT STH 23, Sauk, WI

Built 1975 Load: 25.9 t ADT: 227

LRD GREEN VALLEY R

Poor

Over: PENSAUKEE RIVER

2.4M S JCT CTH E, Shawano, WI

Built 1925 Load: 25.9 t ADT: 120

CTH B/5TH AVE

Poor

Over: YELLOW RIVER

0.4M S JCT STH 64, Taylor, WI

Built 1971 Load: 25.9 t ADT: 758

CTH P

Poor

Over: BIG SLOUGH CREEK

1.7M E JCT STH 121, Trempealeau, WI

Built 1971 Load: 25.9 t ADT: 303

Showing 14,351-14,400 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.