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

LRD ERNST RD (DEAD

Poor

Over: N FK SPIRIT RIVER

0.9M N JCT STH 86, Price, WI

Built 1924 Load: 29.2 t ADT: 13

LRD 50TH RD

Poor

Over: W BR ROOT RIVER CANAL

0.4M E JCT CTH U, Racine, WI

Built 1976 Load: 29.2 t ADT: 587

LRD MILTON SHOPIER

Poor

Over: BR BLACKHAWK CREEK

0.4M S JCT CTH MM, Rock, WI

Built 1923 Load: 29.2 t ADT: 165

CTH PF

Poor

Over: N BR HONEY CREEK

0.2M E JCT CTH C, Sauk, WI

Built 1948 Load: 29.2 t ADT: 420

CTH PF

Poor

Over: N BR HONEY CREEK

1.6M N JCT CTH C, Sauk, WI

Built 1952 Load: 29.2 t ADT: 440

CTH G

Poor

Over: CHIPPEWA RIVER 29

2.4M W JCT CTH W, Sawyer, WI

Built 1980 Load: 29.2 t ADT: 227

LRD 30TH AVE

Poor

Over: BR RUSH RIVER

0.8M E JCT CTH T, St. Croix, WI

Built 1950 Load: 29.2 t ADT: 100

CTH O

Poor

Over: LITTLE BLACK RIVER

1.1M E JCT STH 13, Taylor, WI

Built 1983 Load: 29.2 t ADT: 660

CTH BB

Poor

Over: BORST VALLEY CREEK

0.2M E JCT CTH V, Trempealeau, WI

Built 1940 Load: 29.2 t ADT: 21

CTH W

Poor

Over: MANITOWISH RIVER

0.6M N JCT USH 51, Vilas, WI

Built 1982 Load: 29.2 t ADT: 1,693

CTH Y

Poor

Over: SOUTH SQUAW CREEK

1.5M W JCT CTH M, Wood, WI

Built 1938 Load: 29.2 t ADT: 120

CTH X

Poor

Over: EAST RIVER

0.8M W JCT CTH GV, Brown, WI

Built 1982 Load: 30.8 t ADT: 6,800

LRD TAYLOR ST

Poor

Over: BEAVER CREEK

0.2M N JCT STH 54, Brown, WI

Built 1970 Load: 30.8 t ADT: 9,300

LRD 5TH STREET

Poor

Over: BLACK RIVER

1.4M E JCT USH 10, Clark, WI

Built 1977 Load: 30.8 t ADT: 3,751

CTH G

Poor

Over: PECATONICA RIVER

1.7 MN JCT CTH E, Iowa, WI

Built 1973 Load: 30.8 t ADT: 327

CTH II

Poor

Over: BOSTWICK CREEK

0.2M N JCT CTH I, La Crosse, WI

Built 1976 Load: 30.8 t ADT: 214

CTH E

Poor

Over: BR AMES BRANCH

2.1M W JCT CTH K, Lafayette, WI

Built 1966 Load: 30.8 t ADT: 282

CTH O

Poor

Over: MINERAL POINT BRANCH

2.0M N JCT CTH C, Lafayette, WI

Built 1970 Load: 30.8 t ADT: 199

LRD BEVENT RD (DEA

Poor

Over: LITTLE EAU CLAIRE RIVER

1.5M W JCT CTH J, Marathon, WI

Built 1964 Load: 30.8 t ADT: 90

LRD W LEON TERRACE

Poor

Over: LITTLE MENOMONEE RIVER

0.2 MI W JCT MILL RD, Milwaukee, WI

Built 1965 Load: 30.8 t ADT: 1,500

STH 100 SB-MAYFAIR

Poor

Over: MENOMONEE RIVER

0.3M S JCT STH 190, Milwaukee, WI

Built 1968 Load: 30.8 t ADT: 11,300

LRD S 43RD ST

Poor

Over: KINNICKINNICK RIVER

0.4M N JCT STH 24, Milwaukee, WI

Built 1987 Load: 30.8 t ADT: 19,025

CTH B MAIN ST

Poor

Over: BR HONEY CREEK

0.2M E JCT STH 23, Sauk, WI

Built 1969 Load: 30.8 t ADT: 1,500

LRD NICHOLS DR

Poor

Over: PENSAUKEE RIVER

2.7M E JCT CTH C, Shawano, WI

Built 1915 Load: 30.8 t ADT: 100

LRD SKUNK COULEE R

Poor

Over: GRANT CREEK

0.9M N JCT STH 54, Trempealeau, WI

Built 1928 Load: 30.8 t ADT: 58

LRD TWINDE LANE (D

Poor

Over: BEAR CREEK

0.1M W JCT USH 53, Trempealeau, WI

Built 1968 Load: 30.8 t ADT: 20

CTH N

Poor

Over: S FK BAD AXE RIVER

3.3M S JCT STH 56, Vernon, WI

Built 1951 Load: 30.8 t ADT: 162

LRD HEMLOCK ST

Poor

Over: PIGEON RIVER

0.1M N JCT USH 45, Waupaca, WI

Built 1958 Load: 30.8 t ADT: 2,500

CTH HH

Poor

Over: BR HEMLOCK CREEK

2.5M S JCT CTH N, Wood, WI

Built 1914 Load: 30.8 t ADT: 480

LRD 22ND AVENUE

Poor

Over: SPRING CREEK

0.2M W JCT CTH NN, Barron, WI

Built 1968 Load: 32.4 t ADT: 47

CTH F

Poor

Over: DORITS CREEK

2.6M N JCT CTH A TO W, Barron, WI

Built 1950 Load: 32.4 t ADT: 926

LRD 15TH AVE

Poor

Over: RICE CREEK

1.9M E JCT CTH SS, Barron, WI

Built 1973 Load: 32.4 t ADT: 94

STH 13

Poor

Over: SAND RIVER

2.6M N JCT CTH K TO E, Bayfield, WI

Built 1956 Load: 32.4 t ADT: 880

CTH EE

Poor

Over: ASHWAUBENON CREEK

0.2M W JCT USH 41, Brown, WI

Built 1965 Load: 32.4 t ADT: 8,200

CTH D

Poor

Over: BR PLUM CREEK

1.3M S JCT CTH Z, Brown, WI

Built 1986 Load: 32.4 t ADT: 2,600

CTH D

Poor

Over: NORWEGIAN VALLEY CREEK

0.1M N JCT CTH KK, Buffalo, WI

Built 1928 Load: 32.4 t ADT: 303

LRD BLOCK RD (DEAD

Poor

Over: LITTLE WAUMANDEE CREEK

0.2M W JCT STH 88, Buffalo, WI

Built 1926 Load: 32.4 t ADT: 10

LRD IRISH RD

Poor

Over: N BR MANITOWOC RIVER

0.8M S JCT STH 57, Calumet, WI

Built 1920 Load: 32.4 t ADT: 41

LRD 360TH STREET

Poor

Over: WOLF RIVER

0.2 M N 120TH AVENUE, Chippewa, WI

Built 1968 Load: 32.4 t ADT: 190

CTH M

Poor

Over: CAMERON CREEK

0.3M S JCT CTH GG, Clark, WI

Built 1975 Load: 32.4 t ADT: 336

LRD HILL RD (DEAD

Poor

Over: MID BR DUCK CREEK

1.9M E JCT STH 22, Columbia, WI

Built 1968 Load: 32.4 t ADT: 4

LRD JOHN NOLEN DR

Poor

Over: LAKE MONONA

1.1M N JCT CTH MC, Dane, WI

Built 1968 Load: 32.4 t ADT: 21,600

CTH M

Poor

Over: MOOSE RIVER

6.9M W JCT USH 53, Douglas, WI

Built 1934 Load: 32.4 t ADT: 325

LRD KINGSDALE RD

Poor

Over: SPRUCE RIVER

5.5M W JCT STH 35, Douglas, WI

Built 1930 Load: 32.4 t ADT: 53

CTH N

Poor

Over: MENOMINEE RIVER

2.0M E JCT CTH B, Florence, WI

Built 1973 Load: 32.4 t ADT: 3,500

CTH Q

Poor

Over: FENNIMORE CREEK

3.5M W JCT CTH G, Grant, WI

Built 1984 Load: 32.4 t ADT: 519

LRD TOWNHALL RD

Poor

Over: CROOKED CREEK

0.2M W JCT USH 61, Grant, WI

Built 1900 Load: 32.4 t ADT: 102

LRD FREEPORT RD

Poor

Over: E BR RICHLAND CREEK

0.8M S JCT CTH P, Green, WI

Built 1964 Load: 32.4 t ADT: 89

STH 54

Poor

Over: WILSON CREEK

0.2M E JCT CTH V TO N, Jackson, WI

Built 1936 Load: 32.4 t ADT: 640

CTH T

Poor

Over: FLEMING CREEK

1.0M W JCT CTH EE, La Crosse, WI

Built 1978 Load: 32.4 t ADT: 520

Showing 14,451-14,500 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.