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 OLD HWY 92

Good

Over: BR ALLEN CREEK

1.3M N JCT STH 59, Rock, WI

Built 2004 Load: 38.9 t ADT: 214

IH 43 NB

Good

Over: CP RAILROAD AND SPRING B

0.5 MI S JCT STH 81, Rock, WI

Built 2020 Load: 38.9 t ADT: 8,350

USH 8-LAFOLLETTE A

Good

Over: S FK MAIN CREEK

0.5M E JCT CTH M, Rusk, WI

Built 1980 Load: 38.9 t ADT: 2,000

USH 8

Good

Over: N FK MAIN CREEK

1.2M E JCT CTH B TO N, Rusk, WI

Built 1980 Load: 38.9 t ADT: 1,700

LRD TOWN LINE ROAD

Good

Over: S. FK MAIN CREEK

0.6M E JCT STH 73-84, Rusk, WI

Built 1990 Load: 38.9 t ADT: 90

LRD BASS LAKE RD

Good

Over: LITTLE THORNAPPLE RIVER

1.2M E JCT CTH A #59, Rusk, WI

Built 1999 Load: 38.9 t ADT: 108

LRD SCHOOL RD

Good

Over: DEER TAIL CREEK

0.3M E JCT CTH B-106, Rusk, WI

Built 1999 Load: 38.9 t ADT: 54

CTH M

Good

Over: N FK SKINNER CREEK

7.9M N JCT USH 8--43, Rusk, WI

Built 2000 Load: 38.9 t ADT: 322

LRD LAWRENCE ST

Good

Over: MIDDLE FORK MAIN CR

0.3M W JCT STH 73-115, Rusk, WI

Built 2001 Load: 38.9 t ADT: 107

LRD NASH RD

Good

Over: LITTLE BARABOO RIVER

0.3M S JCT CTH G, Sauk, WI

Built 1996 Load: 38.9 t ADT: 73

LRD LITTLE BEAR RD

Good

Over: BEAR CREEK

0.6M N JCT CTH B, Sauk, WI

Built 1998 Load: 38.9 t ADT: 57

LRD MORTIMER RD

Good

Over: BR LITTLE BARABOO RIVER

0.1M W JCT CTH G, Sauk, WI

Built 1998 Load: 38.9 t ADT: 38

STH 154

Good

Over: HILL POINT CREEK

3.6M E JCT STH 130, Sauk, WI

Built 2000 Load: 38.9 t ADT: 1,600

LRD SKY VIEW RD

Good

Over: N BR HONEY CREEK

1.6M W JCT CTH PF, Sauk, WI

Built 2000 Load: 38.9 t ADT: 125

STH 23 - STH 33

Good

Over: COPPER CREEK

1.6M E JCT CTH H, Sauk, WI

Built 2001 Load: 38.9 t ADT: 12,300

LRD PRAIRIE RD

Good

Over: OTTER CREEK

OTTER CR, Sauk, WI

Built 2000 Load: 38.9 t ADT: 297

STH 33

Good

Over: CROSSMAN CREEK

3.1M EAST OF SAUK WCL, Sauk, WI

Built 2004 Load: 38.9 t ADT: 2,729

CTH O

Good

Over: UNNAMED DRAINAGE DITCH

0.3M E CLAVADATSCHER RD, Sauk, WI

Built 2008 Load: 38.9 t ADT: 700

LRD STRAWBRIDGE RD

Good

Over: BARABOO RIVER

0.1M S JCT STH 33, Sauk, WI

Built 1968 Load: 38.9 t ADT: 286

FR 199

Good

Over: MORGAN FALLS CREEK

7.4 M. S. JCT CTH E, Sawyer, WI

Built 2006 Load: 38.9 t ADT: 40

LRD MANSKY RD

Good

Over: WEIRGOR CREEK

0.3M W JCT STH 40, Sawyer, WI

Built 2003 Load: 38.9 t ADT: 45

LRD OLD HWY 70

Good

Over: KENYON CREEK

0.2M E JCT STH 27, Sawyer, WI

Built 2003 Load: 38.9 t ADT: 42

LRD KENYON CREEK R

Good

Over: KENYEN CREEK

1.5M N JCT CTH D, Sawyer, WI

Built 2005 Load: 38.9 t ADT: 21

STH 29 EB

Good

Over: WOLF RIVER

0.2M E JCT STH 22, Shawano, WI

Built 1996 Load: 38.9 t ADT: 5,550

STH 29 EB

Good

Over: W BR SHIOC RIVER

4.5M E JCT CTH T, Shawano, WI

Built 1997 Load: 38.9 t ADT: 7,350

STH 29 EB

Good

Over: N BR EMBARRASS RIVER

0.4M E JCT CTH G TO S, Shawano, WI

Built 1998 Load: 38.9 t ADT: 7,800

STH 29 WB

Good

Over: N BR EMBARRASS RIVER

0.7M W JCT CTH D TO S, Shawano, WI

Built 1998 Load: 38.9 t ADT: 3,950

STH 29 EB

Good

Over: MIDDLE BR EMBARRASS R

.2M E JCT CTH J, Shawano, WI

Built 1998 Load: 38.9 t ADT: 7,800

CTH J

Good

Over: SHEBOYGAN RIVER

0.1M N JCT CTH SR, Sheboygan, WI

Built 1991 Load: 38.9 t ADT: 2,700

STH 32-WISCONSIN D

Good

Over: FISHER CREEK

0.1M N JCT CTH JJ, Sheboygan, WI

Built 1989 Load: 38.9 t ADT: 3,900

CTH GW

Good

Over: HAND CREEK

0.7M N JCT CTH G, Sheboygan, WI

Built 1995 Load: 38.9 t ADT: 211

CTH D

Good

Over: MINK CREEK

0.4M W JCT STH 28, Sheboygan, WI

Built 1996 Load: 38.9 t ADT: 503

CTH I

Good

Over: ONION RIVER

0.3M N JCT CTH W, Sheboygan, WI

Built 1998 Load: 38.9 t ADT: 700

CTH O

Good

Over: SHEBOYGAN RIVER

0.3M E JCT CTH M, Sheboygan, WI

Built 2004 Load: 38.9 t ADT: 830

CTH B

Good

Over: CARR CREEK

1.6M N JCT CTH N, St. Croix, WI

Built 1955 Load: 38.9 t ADT: 1,500

LRD 18TH AVE

Good

Over: BR RUSH RIVER

0.3M W JCT CTH Y, St. Croix, WI

Built 1985 Load: 38.9 t ADT: 114

LRD 250TH ST

Good

Over: WILLOW RIVER

2.2M S JCT CTH H, St. Croix, WI

Built 1988 Load: 38.9 t ADT: 80

LRD 200TH STREET

Good

Over: RUSH RIVER

0.5M S JCT CTH J, St. Croix, WI

Built 1990 Load: 38.9 t ADT: 515

LRD 50 TH AVENUE

Good

Over: EAU GALLE RIVER

0.7M E JCT CTH B, St. Croix, WI

Built 1993 Load: 38.9 t ADT: 156

LRD 190TH STREET

Good

Over: DRY RUN CREEK

2.2M N JCT CTH G, St. Croix, WI

Built 1997 Load: 38.9 t ADT: 55

LRD STEEPLE DR

Good

Over: KINNICKINNIC RIVER

2.3M W JCT CTH J, St. Croix, WI

Built 1998 Load: 38.9 t ADT: 60

STH 170-MAPLE ST

Good

Over: GLENHAVEN CREEK

0.9M E JCT STH 128, St. Croix, WI

Built 2001 Load: 38.9 t ADT: 1,300

CTH Y

Good

Over: RUSH RIVER

0.3M E JCT CTH M, St. Croix, WI

Built 1964 Load: 38.9 t ADT: 300

LRD MULBERRY LANE

Good

Over: BLACK RIVER

0.5M S JCT CTH M, Taylor, WI

Built 1989 Load: 38.9 t ADT: 101

LRD COUNTY LINE RD

Good

Over: N FK EAU CLAIRE RIVER

0.9M W JCT STH 73, Taylor, WI

Built 1990 Load: 38.9 t ADT: 85

CTH E

Good

Over: WASHINGTON CREEK

0.4M S JCT CTH M, Taylor, WI

Built 2004 Load: 38.9 t ADT: 1,004

LRD NEITZKE RD (DE

Good

Over: N BR ELK CREEK

0.1M W JCT CTH O, Trempealeau, WI

Built 1994 Load: 38.9 t ADT: 20

LRD ELM ST

Good

Over: JOHNSON VALLEY CREEK

0.4M E JCT CTH D, Trempealeau, WI

Built 1994 Load: 38.9 t ADT: 475

STH 121

Good

Over: BORST VALLEY CREEK

0.4M E JCT CTH BB, Trempealeau, WI

Built 1999 Load: 38.9 t ADT: 870

STH 121

Good

Over: ELK CREEK

1.3M E JCT CTH BB, Trempealeau, WI

Built 1999 Load: 38.9 t ADT: 870

Showing 12,251-12,300 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.