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 M

Fair

Over: PLEASANT VALLEY CREEK

1.7M W JCT CTH G, Grant, WI

Built 1980 Load: 32.4 t ADT: 180

STH 81

Fair

Over: JORDAN CREEK

0.1M E JCT CTH M TO S, Green, WI

Built 1980 Load: 32.4 t ADT: 2,800

LRD SILVER RD

Fair

Over: LITTLE SUGAR RIVER

1.3M S JCT CTH EE, Green, WI

Built 1983 Load: 32.4 t ADT: 105

CTH OK

Fair

Over: SYLVESTER CREEK

0.6M S JCT CTH SS, Green, WI

Built 1988 Load: 32.4 t ADT: 305

CTH S

Fair

Over: RILEY SCHOOL CREEK

1.3M S JCT CTH KS, Green, WI

Built 1988 Load: 32.4 t ADT: 790

LRD COATES AVE

Fair

Over: BR LITTLE SUGAR RIVER

0.5M E JCT STH 69, Green, WI

Built 1992 Load: 32.4 t ADT: 2,100

LRD JORDAN CENTER

Fair

Over: JORDAN CREEK

0.1M N JCT STH 81, Green, WI

Built 1920 Load: 32.4 t ADT: 107

LRD 4TH AVE WEST

Fair

Over: HONEY CREEK

0.7M W JCT STH 69, Green, WI

Built 1979 Load: 32.4 t ADT: 7,490

LRD CLARNO RD

Fair

Over: BR RICHLAND CREEK

0.2M N JCT CTH P, Green, WI

Built 1950 Load: 32.4 t ADT: 56

CTH D

Fair

Over: BR FOX RIVER

1.0M S JCT CTH F, Green Lake, WI

Built 1976 Load: 32.4 t ADT: 283

CTH M

Fair

Over: FOX RIVER

0.7M S JCT CTH GG, Green Lake, WI

Built 1988 Load: 32.4 t ADT: 351

LRD PROSCARIAN ROA

Fair

Over: TRIB TO GRAND RIVER

0.33 MILES S OF CTH X, Green Lake, WI

Built 2010 Load: 32.4 t ADT: 153

LRD DEAD END RD

Fair

Over: SILVER CREEK

0.3M S JCT STH 23, Green Lake, WI

Built 1970 Load: 32.4 t ADT: 25

USH 18-USH 151

Fair

Over: BR DODGE BRANCH

1.4M E JCT USH 151 TO N, Iowa, WI

Built 1979 Load: 32.4 t ADT: 14,600

LRD WOODLAWN RD

Fair

Over: YELLOWSTONE RIVER

0.3M W JCT CTH DD, Iowa, WI

Built 1983 Load: 32.4 t ADT: 52

CTH Y

Fair

Over: MILL CREEK

0.6M S JCT CTH H, Iowa, WI

Built 1976 Load: 32.4 t ADT: 337

LRD SECTION LINE R

Fair

Over: BR DODGE BRANCH

1.4M W JCT CTH Y, Iowa, WI

Built 1987 Load: 32.4 t ADT: 260

LRD SAWLE RD

Fair

Over: BLUE MOUNDS CREEK

0.6M S JCT USH 14, Iowa, WI

Built 1987 Load: 32.4 t ADT: 104

STH 23

Fair

Over: BR RUSH CREEK

5.1M E JCT STH 130, Iowa, WI

Built 1988 Load: 32.4 t ADT: 2,600

STH 23-STH 39

Fair

Over: BREWERY CREEK

0.4M E JCT STH 39 TO E, Iowa, WI

Built 1997 Load: 32.4 t ADT: 3,300

CTH C

Fair

Over: MONTREAL RIVER

1.2M E JCT USH 51, Iron, WI

Built 1975 Load: 32.4 t ADT: 142

STH 77

Fair

Over: POTATO RIVER

8.2M E ASHLAND CO LINE, Iron, WI

Built 1983 Load: 32.4 t ADT: 700

LRD MANY ROCKS ROA

Fair

Over: BLACK LAKE THOROUGHFARE

0.8M N JCT FF, Iron, WI

Built 1970 Load: 32.4 t ADT: 30

STH 27

Fair

Over: ROBINSON CREEK

1.9M N JCT CTH O, Jackson, WI

Built 1951 Load: 32.4 t ADT: 3,900

STH 27

Fair

Over: PERRY CREEK

6.1M N JCT CTH O, Jackson, WI

Built 1951 Load: 32.4 t ADT: 3,700

STH 54

Fair

Over: DOUGLAS CREEK

1.4M E JCT STH 71, Jackson, WI

Built 1955 Load: 32.4 t ADT: 2,600

STH 95-INTERSTATE

Fair

Over: TANK CREEK

0.3M E JCT CTH A, Jackson, WI

Built 1966 Load: 32.4 t ADT: 5,000

LRD S POLE GROVE R

Fair

Over: TANK CREEK

0.2M N JCT CTH A, Jackson, WI

Built 1966 Load: 32.4 t ADT: 176

CTH P

Fair

Over: KENYON CREEK

0.8M W JCT CTH C, Jackson, WI

Built 1979 Load: 32.4 t ADT: 1,308

LRD W INDIES RD

Fair

Over: BR BLACK RIVER

1.5M S JCT CTH D, Jackson, WI

Built 1990 Load: 32.4 t ADT: 170

USH 10-USH 12-STH

Fair

Over: COON CREEK

0.1M E JCT USH 12 TO W, Jackson, WI

Built 1992 Load: 32.4 t ADT: 3,100

CTH D

Fair

Over: BR S FK BEAVER CREEK

1.2M W JCT CTH H, Jackson, WI

Built 1998 Load: 32.4 t ADT: 390

LRD N BRANCH RD

Fair

Over: N BR TREMPEALEAU RIVER

1.4M N JCT STH 95, Jackson, WI

Built 1969 Load: 32.4 t ADT: 205

IH 94 EB

Fair

Over: CRAWFISH RIVER

3.3M E JCT STH 89 TO N, Jefferson, WI

Built 1964 Load: 32.4 t ADT: 18,850

STH 106

Fair

Over: MUD CREEK

2.5M E JCT CTH CI, Jefferson, WI

Built 1962 Load: 32.4 t ADT: 1,500

STH 19-MAIN ST

Fair

Over: ROCK RIVER

0.8M E JCT CTH R, Jefferson, WI

Built 1994 Load: 32.4 t ADT: 10,339

STH 26

Fair

Over: ALLEN CREEK

0.2M N JCT STH 106, Jefferson, WI

Built 1994 Load: 32.4 t ADT: 13,400

LRD COFFEE RD

Fair

Over: JOHNSON CREEK

0.8M E JCT CTH X, Jefferson, WI

Built 1999 Load: 32.4 t ADT: 250

LRD DIVISION ST

Fair

Over: ROCK RIVER

0.4M E JCT STH 109, Jefferson, WI

Built 1937 Load: 32.4 t ADT: 3,700

STH 82

Fair

Over: TRIB CLEAVER CREEK

2.3M E JCT STH 80 TO N, Juneau, WI

Built 1986 Load: 32.4 t ADT: 2,300

STH 82

Fair

Over: TRIB CLEAVER CREEK

1.8M E JCT STH 80 TO N, Juneau, WI

Built 1986 Load: 32.4 t ADT: 2,300

CTH N

Fair

Over: LEMONWEIR RIVER SLOUGH

0.1M E JCT USH 12, Juneau, WI

Built 1988 Load: 32.4 t ADT: 343

STH 158

Fair

Over: CMSTPP RR

0.5 MI E JCT CTH H, Kenosha, WI

Built 1958 Load: 32.4 t ADT: 18,400

STH 50 EB-STH 83 S

Fair

Over: SOO LINE

1.4M E JCT STH 83 TO N, Kenosha, WI

Built 1980 Load: 32.4 t ADT: 10,750

STH 50

Fair

Over: SALEM BRANCH

2.3M E JCT STH 75, Kenosha, WI

Built 1989 Load: 32.4 t ADT: 18,400

STH 57

Fair

Over: RED RIVER

0.5M N JCT CTH X, Kewaunee, WI

Built 1958 Load: 32.4 t ADT: 10,100

STH 42

Fair

Over: SANDY BAY CREEK

0.7M N JCT CTH G, Kewaunee, WI

Built 1958 Load: 32.4 t ADT: 1,900

STH 42

Fair

Over: MASHEK CREEK

0.2M N JCT CTH O, Kewaunee, WI

Built 1990 Load: 32.4 t ADT: 3,100

LRD CURRAN RD

Fair

Over: BUCK CREEK

0.7M N JCT CTH BB, Kewaunee, WI

Built 1993 Load: 32.4 t ADT: 100

LRD BAYVIEW RD

Fair

Over: UNNAMED STREAM

0.3M SOUTH OF MACCO RD, Kewaunee, WI

Built 2005 Load: 32.4 t ADT: 685

Showing 5,401-5,450 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.