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 J

Fair

Over: BEAVER DAM RIVER

1.2M S JCT CTH KW, Dodge, WI

Built 1954 Load: 19.4 t ADT: 738

LRD PERCH RD

Fair

Over: WILDCAT CREEK

0.5M W JCT CTH R, Dodge, WI

Built 1974 Load: 19.4 t ADT: 58

CTH C

Fair

Over: NEMADJI RIVER

0.4M E JCT STH 35, Douglas, WI

Built 1968 Load: 19.4 t ADT: 2,257

CTH Q

Fair

Over: BR TIFFANY CREEK

0.4M N JCT STH 170, Dunn, WI

Built 1960 Load: 19.4 t ADT: 426

LRD 860TH ST

Fair

Over: LOWER PINE CREEK

0.3M N JCT CTH V, Dunn, WI

Built 1913 Load: 19.4 t ADT: 109

LRD 970TH ST

Fair

Over: BEAVER CREEK

0.2M N JCT STH 64, Dunn, WI

Built 1978 Load: 19.4 t ADT: 107

CTH K

Fair

Over: EAU CLAIRE RIVER

0.7M N CTH SS, Eau Claire, WI

Built 1951 Load: 19.4 t ADT: 2,050

CTH F

Fair

Over: LOWES CREEK

0.4M S CTH S, Eau Claire, WI

Built 1956 Load: 19.4 t ADT: 3,485

CTH V

Fair

Over: BEARGRASS CREEK

1.1M W USH 12, Eau Claire, WI

Built 1925 Load: 19.4 t ADT: 256

LRD TEXAS RD

Fair

Over: KUENSTER CREEK

1.0M N JCT STH 133, Grant, WI

Built 1925 Load: 19.4 t ADT: 102

LRD BLUFF ST

Fair

Over: BR MISSISSIPPI RIVER

0.1M W JCT STH 81, Grant, WI

Built 1962 Load: 19.4 t ADT: 940

LRD PUDDLEDOCK RD

Fair

Over: DOUGHERTY CREEK

1.5M N JCT STH 81, Green, WI

Built 1952 Load: 19.4 t ADT: 105

LRD WASHINGTON RD

Fair

Over: W BR LITTLE SUGAR RIVER

0.3M N JCT CTH C, Green, WI

Built 1935 Load: 19.4 t ADT: 79

LRD PURINTUN RD

Fair

Over: BR LITTLE SUGAR RIVER

0.6M N JCT CTH F, Green, WI

Built 1939 Load: 19.4 t ADT: 158

CTH EE

Fair

Over: SUGAR RIVER

0.4M W JCT CTH E, Green, WI

Built 1967 Load: 19.4 t ADT: 750

LRD MT HOPE RD

Fair

Over: SPRING CREEK

2.1M S JCT STH 11, Green, WI

Built 1961 Load: 19.4 t ADT: 117

LRD MEADOW BROOK R

Fair

Over: DOUGHERTY CREEK

1.6M E JCT CTH A, Green, WI

Built 1940 Load: 19.4 t ADT: 105

STH 133

Fair

Over: MORREY CREEK

0.5M N JCT STH 80 TO S, Iowa, WI

Built 1952 Load: 19.4 t ADT: 1,300

LRD MT HOPE RD

Fair

Over: HARKER CREEK

1.3M S JCT CTH Q, Iowa, WI

Built 1930 Load: 19.4 t ADT: 78

CTH Q

Fair

Over: FLINT CREEK

0.2M S JCT CTH M, Iowa, WI

Built 1975 Load: 19.4 t ADT: 500

LRD TURNELL RD (DE

Fair

Over: W BR BLUE MOUNDS CREEK

0.1M E JCT CTH K, Iowa, WI

Built 1963 Load: 19.4 t ADT: 40

STH 54

Fair

Over: TROUT RUN CREEK

6.4M E JCT CTH N, Jackson, WI

Built 1970 Load: 19.4 t ADT: 1,900

USH 12-STH 27

Fair

Over: COON CREEK

7.5M E JCT CTH M TO E, Jackson, WI

Built 1945 Load: 19.4 t ADT: 2,300

LRD S CEMETERY RD

Fair

Over: MORRISON CREEK

2.8M N JCT STH 54, Jackson, WI

Built 1967 Load: 19.4 t ADT: 47

LRD NORTH RD

Fair

Over: BR BLACK RIVER

0.8M S JCT CTH D, Jackson, WI

Built 1935 Load: 19.4 t ADT: 35

LRD OLD HWY 54

Fair

Over: PINE GROVE CREEK

0.1M E JCT STH 54, Jackson, WI

Built 1930 Load: 19.4 t ADT: 94

CTH CW

Fair

Over: ROCK RIVER

2.8M W JCT STH 67, Jefferson, WI

Built 1953 Load: 19.4 t ADT: 1,477

LRD KUNZ RD

Fair

Over: BR ROCK RIVER

0.1M N JCT STH 106, Jefferson, WI

Built 1937 Load: 19.4 t ADT: 107

LRD MCEWEN RD

Fair

Over: LITTLE LEMONWEIR RIVER

0.9M N JCT USH 12, Juneau, WI

Built 1963 Load: 19.4 t ADT: 44

LRD 23RD ST

Fair

Over: S BR YELLOW RIVER

1.9M W JCT STH 80, Juneau, WI

Built 1919 Load: 19.4 t ADT: 86

LRD PETROWITZ RD

Fair

Over: ONE MILE CREEK

0.3M S JCT CTH G, Juneau, WI

Built 1928 Load: 19.4 t ADT: 120

LRD COUNTY LINE RD

Fair

Over: EAST BRANCH

0.1M E JCT STH 173, Juneau, WI

Built 1950 Load: 19.4 t ADT: 23

CTH A

Fair

Over: KEWAUNEE RIVER

0.2M N JCT CTH K, Kewaunee, WI

Built 1954 Load: 19.4 t ADT: 910

CTH C

Fair

Over: KEWAUNEE RIVER

1.2M W JCT STH 29, Kewaunee, WI

Built 1970 Load: 19.4 t ADT: 1,433

CTH M

Fair

Over: BOSTWICK CREEK

0.3M N JCT CTH I, La Crosse, WI

Built 1952 Load: 19.4 t ADT: 2,100

CTH M

Fair

Over: MORMON CREEK

1.8M E JCT USH 14, La Crosse, WI

Built 1956 Load: 19.4 t ADT: 660

LRD OLD STH 16

Fair

Over: NESHONIC CREEK

0.1M N JCT STH 108, La Crosse, WI

Built 1926 Load: 19.4 t ADT: 94

CTH G

Fair

Over: PECATONICA RIVER

0.1M E JCT CTH C, Lafayette, WI

Built 1940 Load: 19.4 t ADT: 387

LRD COTTAGE INN RD

Fair

Over: COTTAGE INN BRANCH

1.0M S JCT CTH C, Lafayette, WI

Built 1940 Load: 19.4 t ADT: 58

LRD OLLIE BELL RD

Fair

Over: GALENA RIVER

1.3M E JCT CTH J, Lafayette, WI

Built 1969 Load: 19.4 t ADT: 88

LRD GOWAN RD

Fair

Over: SPRING BROOK

0.3M N JCT CTH Y, Langlade, WI

Built 1966 Load: 19.4 t ADT: 246

LRD STATE ST

Fair

Over: WISCONSIN RIVER 38

0.3M S JCT STH 64, Lincoln, WI

Built 1966 Load: 19.4 t ADT: 3,985

LRD WEGNER RD (DEA

Fair

Over: N FK COPPER RIVER

2.4M N JCT CTH M, Lincoln, WI

Built 1972 Load: 19.4 t ADT: 50

LRD ROCKVILLE RD

Fair

Over: SHEBOYGAN RIVER

0.5M E JCT STH 67, Manitowoc, WI

Built 1970 Load: 19.4 t ADT: 2,500

LRD TOMKINS RD

Fair

Over: BR MANITOWOC RIVER

0.8M S JCT USH 151, Manitowoc, WI

Built 1929 Load: 19.4 t ADT: 94

LRD HECKER RD

Fair

Over: SILVER CREEK

1.0M S JCT USH 151, Manitowoc, WI

Built 1967 Load: 19.4 t ADT: 293

CTH M

Fair

Over: LITTLE EAU PLEINE RIVER

2.4M S JCT CTH C, Marathon, WI

Built 1961 Load: 19.4 t ADT: 1,720

USH 51 NB

Fair

Over: COUNTY LINE CREEK

5.6M N JCT CTH WW TO E, Marathon, WI

Built 1974 Load: 19.4 t ADT: 10,300

LRD SUGAR BUSH RD

Fair

Over: FREEMAN CREEK

1.2M E JCT CTH S, Marathon, WI

Built 1986 Load: 19.4 t ADT: 95

LRD W BEAR LAKE RD

Fair

Over: SPRING BROOK

1.8M E JCT CTH Y, Marathon, WI

Built 1967 Load: 19.4 t ADT: 50

Showing 3,251-3,300 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.