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 BADGER RD

Good

Over: BR MARTIN BRANCH

1.5M W JCT CTH K, Grant, WI

Built 2005 Load: 38.9 t ADT: 158

LRD SANDY HOLLOW R

Good

Over: SANDY CREEK

2.2M S JCT CTH P, Grant, WI

Built 2005 Load: 38.9 t ADT: 102

LRD IDEAL RD

Good

Over: TRIB. TO FENNIMORE BR.

0.9M N OF JCT WOOD RD., Grant, WI

Built 2004 Load: 38.9 t ADT: 105

LRD BALL LANE (DEA

Good

Over: MARTIN BRANCH

2.2M S JCT USH 18, Grant, WI

Built 2011 Load: 38.9 t ADT: 50

LRD FOREST RD

Good

Over: BLUE RIVER

0.8M S JCT STH 133, Grant, WI

Built 1976 Load: 38.9 t ADT: 153

LRD HEFTY RD

Good

Over: BR W BR LITTLE SUGAR R

0.1M W JCT STH 39, Green, WI

Built 1960 Load: 38.9 t ADT: 211

LRD MELVIN RD

Good

Over: HONEY CREEK

1.2M W JCT STH 69, Green, WI

Built 1994 Load: 38.9 t ADT: 165

LRD GOLF COURSE RD

Good

Over: NORWEGIAN CREEK

0.6M W JCT CTH E, Green, WI

Built 2000 Load: 38.9 t ADT: 1,452

LRD KUBLY ROAD

Good

Over: WARD CREEK

1.2M E JCT STH 69, Green, WI

Built 1999 Load: 38.9 t ADT: 211

LRD APPLE GROVE RD

Good

Over: DOUGHERTY CREEK

0.7M S JCT CTH A, Green, WI

Built 2003 Load: 38.9 t ADT: 106

CTH EE

Good

Over: LITTLE SUGAR RIVER

0.4M E JCT CTH F, Green, WI

Built 1968 Load: 38.9 t ADT: 620

CTH S

Good

Over: GRAND RIVER

0.9M W JCT CTH Q, Green Lake, WI

Built 2019 Load: 38.9 t ADT: 146

STH 23

Good

Over: LOWERY CREEK

0.1M E JCT CTH T, Iowa, WI

Built 1988 Load: 38.9 t ADT: 3,600

LRD STAR VALLEY RD

Good

Over: E BR PECATONICA RIVER

1.8M N JCT STH 39, Iowa, WI

Built 1989 Load: 38.9 t ADT: 104

LRD HARKER STATION

Good

Over: E BR PECATONICA RIVER

0.4M S JCT CTH E, Iowa, WI

Built 1991 Load: 38.9 t ADT: 78

LRD MEADOW BROOK R

Good

Over: MORREY CREEK

0.4M E JCT STH 80, Iowa, WI

Built 1991 Load: 38.9 t ADT: 114

USH 14

Good

Over: BLUE MOUND CREEK

3.9M E JCT CTH H, Iowa, WI

Built 2001 Load: 38.9 t ADT: 7,500

STH 39

Good

Over: PECATONICA RIVER

0.8M E JCT STH 191, Iowa, WI

Built 2001 Load: 38.9 t ADT: 1,400

LRD SUNNY RIDGE RD

Good

Over: BR DODGE BRANCH

0.2M S JCT STH 191, Iowa, WI

Built 2000 Load: 38.9 t ADT: 104

LRD SANDY ROCK RD

Good

Over: BLUE MOUNDS BRANCH

2.7M S JCT CTH F, Iowa, WI

Built 2000 Load: 38.9 t ADT: 103

CTH I

Good

Over: OTTER CREEK

0.6M S JCT STH 130, Iowa, WI

Built 2000 Load: 38.9 t ADT: 300

USH 151 NB

Good

Over: MINERAL POINT BRANCH

0.5M N JCT CTH A, Iowa, WI

Built 2002 Load: 38.9 t ADT: 5,850

USH 151 NB

Good

Over: TRIB TO LUDDEN LAKE

0.1M N EAST LAKE RD, Iowa, WI

Built 2002 Load: 38.9 t ADT: 4,550

USH 151 SB

Good

Over: TRIB TO LUDDEN LAKE

1.3M S JCT S BARRELTOWN R, Iowa, WI

Built 2002 Load: 38.9 t ADT: 4,550

STH 23

Good

Over: TRIB TO LUDDEN LAKE

1.2M E JCT STH 39, Iowa, WI

Built 2001 Load: 38.9 t ADT: 4,100

LRD PENIEL RD

Good

Over: PECATONICA RIVER

1.4M W JCT CTH J, Iowa, WI

Built 2002 Load: 38.9 t ADT: 106

USH 2

Good

Over: SOO LINE

0.8M E JCT STH 122, Iron, WI

Built 1976 Load: 38.9 t ADT: 3,700

LRD FISCHER LAKE R

Good

Over: TURTLE RIVER

0.5M E JCT CTH H, Iron, WI

Built 2001 Load: 38.9 t ADT: 103

LRD HENDRICKSON RD

Good

Over: BOOMER CREEK

1.7M E JCT CTH B, Iron, WI

Built 2004 Load: 38.9 t ADT: 108

STH 122

Good

Over: MONTREAL RIVER

0.6M N JCT CTH A, Iron, WI

Built 1928 Load: 38.9 t ADT: 200

IH 94 EB

Good

Over: TREMPEALEAU RIVER

6.8M E JCT STH 121 TO E, Jackson, WI

Built 1966 Load: 38.9 t ADT: 12,700

LRD OLD HWY I RD

Good

Over: ROBINSON CREEK

0.7M N JCT CTH O, Jackson, WI

Built 1991 Load: 38.9 t ADT: 101

STH 95

Good

Over: JONAH COULEE CREEK

0.4M E JCT CTH P, Jackson, WI

Built 1996 Load: 38.9 t ADT: 3,600

LRD FALL COULEE RD

Good

Over: STONY CREEK

0.4M W JCT CTH FF, Jackson, WI

Built 1996 Load: 38.9 t ADT: 1,886

LRD S SAND LANE RD

Good

Over: S FK BUFFALO RIVER

0.2M N JCT CTH B, Jackson, WI

Built 1997 Load: 38.9 t ADT: 36

LRD ERICKSON RD (D

Good

Over: S FK BEAVER CREEK

0.2M N JCT CTH D, Jackson, WI

Built 1999 Load: 38.9 t ADT: 30

LRD JOOS RD

Good

Over: BR S FK HALLS CREEK

0.3M W JCT CTH F, Jackson, WI

Built 2002 Load: 38.9 t ADT: 54

LRD FALLHALL RD

Good

Over: ROBINSON CREEK

0.6M S JCT STH 27, Jackson, WI

Built 2004 Load: 38.9 t ADT: 105

CTH X

Good

Over: FRENCH CREEK

1.1 MI S OF JCT CTH P, Jackson, WI

Built 2005 Load: 38.9 t ADT: 230

STH 95

Good

Over: HALLS CREEK

3.4M E JCT CTH F, Jackson, WI

Built 2023 Load: 38.9 t ADT: 2,400

LRD WISCONSIN DR

Good

Over: CRAWFISH RIVER

0.3M S JCT USH 18, Jefferson, WI

Built 1988 Load: 38.9 t ADT: 3,900

LRD BRITZKE RD

Good

Over: KOSHKONONG CREEK

0.3M E JCT STH 134, Jefferson, WI

Built 1997 Load: 38.9 t ADT: 164

LRD CUSHMAN RD

Good

Over: BARK RIVER

1.0M E JCT CTH D, Jefferson, WI

Built 2006 Load: 38.9 t ADT: 276

STH 106

Good

Over: BARK RIVER

0.3M E JCT CTH D TO S, Jefferson, WI

Built 2017 Load: 38.9 t ADT: 1,900

STH 80-STH 82

Good

Over: BARABOO RIVER

2.9M N JCT STH 33 TO E, Juneau, WI

Built 1997 Load: 38.9 t ADT: 3,300

CTH K

Good

Over: CATTAIL VALLEY CREEK

1.6M N JCT CTH O, Juneau, WI

Built 1998 Load: 38.9 t ADT: 702

STH 80

Good

Over: WEBSTER CR

5.1M N STH 82 (E), Juneau, WI

Built 2005 Load: 38.9 t ADT: 1,600

CTH M

Good

Over: UNNAMED WATERWAY

4.2 M S JCT STH 21, Juneau, WI

Built 2015 Load: 38.9 t ADT: 150

STH 31 NB

Good

Over: NORTH BR. PIKE RIVER

0.7 MI N JCT CTH A, Kenosha, WI

Built 2000 Load: 38.9 t ADT: 11,000

STH 31 SB

Good

Over: NORTH BR. PIKE RIVER

0.25 MI S JCT CTH KR, Kenosha, WI

Built 2000 Load: 38.9 t ADT: 11,000

Showing 12,051-12,100 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.