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 SOUTH ST (DEAD

Good

Over: DEER TAIL CREEK

0.2M E JCT CTH I-116, Rusk, WI

Built 2000 Load: 48.6 t ADT: 100

LRD OAK GROVE RD

Good

Over: DEER TAIL CREEK

0.7M S JCT CTH P, Rusk, WI

Built 2008 Load: 48.6 t ADT: 104

LRD IRVINE DR

Good

Over: KENYON CREEK

2.1M W JCT STH 27, Sawyer, WI

Built 2008 Load: 48.6 t ADT: 104

STH 29 EB

Good

Over: WCL RR

2.8M E JCT STH 22, Shawano, WI

Built 1997 Load: 48.6 t ADT: 7,350

STH 29 WB

Good

Over: WCL RR

5.8M W JCT STH 47, Shawano, WI

Built 1997 Load: 48.6 t ADT: 7,500

CTH PP

Good

Over: MULLET RIVER

0.1M W JCT CTH O, Sheboygan, WI

Built 1994 Load: 48.6 t ADT: 5,200

CTH U

Good

Over: ONION RIVER

0.5M E JCT CTH E, Sheboygan, WI

Built 1995 Load: 48.6 t ADT: 323

STH 64

Good

Over: WILLOW RIVER

1.2M E JCT CTH T, St. Croix, WI

Built 2009 Load: 48.6 t ADT: 7,300

LRD MINK RD

Good

Over: MINK CREEK

2.0M N JCT STH 64, Taylor, WI

Built 2006 Load: 48.6 t ADT: 104

CTH OOO

Good

Over: BUFFALO RIVER

0.1M S JCT USH 10, Trempealeau, WI

Built 2002 Load: 48.6 t ADT: 342

LRD MUNDSACK RD

Good

Over: BR N FK BAD AXE RIVER

1.3M S JCT STH 56, Vernon, WI

Built 2008 Load: 48.6 t ADT: 41

LRD MUNYON LANE (D

Good

Over: N FK BAD AXE RIVER

2.5M N JCT STH 56, Vernon, WI

Built 2001 Load: 48.6 t ADT: 20

LRD UNION AVE

Good

Over: WARNER CREEK

0.1M S JCT CTH P, Vernon, WI

Built 2003 Load: 48.6 t ADT: 42

LRD PARK ROAD

Good

Over: BR N FK BAD AXE RIVER

0.1M W JCT CTH B, Vernon, WI

Built 2008 Load: 48.6 t ADT: 232

STH 82

Good

Over: BR BEAR CREEK

0.7M E JCT STH 131 TO S, Vernon, WI

Built 1934 Load: 48.6 t ADT: 1,500

CTH H

Good

Over: TROUT RIVER

2.6M S OF USH51, Vilas, WI

Built 1993 Load: 48.6 t ADT: 705

CTH O

Good

Over: SWAN CREEK

1.3M S JCT STH 11, Walworth, WI

Built 2006 Load: 48.6 t ADT: 3,500

LRD NORTH RD

Good

Over: NAMEKAGON RIVER

0.3M N JCT USH 63, Washburn, WI

Built 1996 Load: 48.6 t ADT: 47

STH 77

Good

Over: NAMEKAGON RIVER

5.6M E JCT CTH H, Washburn, WI

Built 2005 Load: 48.6 t ADT: 1,100

STH 54

Good

Over: GBW RR

0.5M E JCT CTH B TO N, Waupaca, WI

Built 2009 Load: 48.6 t ADT: 6,100

CTH Q

Good

Over: ROUND LAKE

1.9M S JCT STH 54, Waupaca, WI

Built 2006 Load: 48.6 t ADT: 2,914

CTH K

Good

Over: N BR LITTLE WOLF RI

0.65 MI. N. RICH LAKE RD., Waupaca, WI

Built 2007 Load: 48.6 t ADT: 384

CTH-II

Good

Over: UNNAMED STREAM

7.0M E JCT USH 45, Winnebago, WI

Built 2004 Load: 48.6 t ADT: 2,300

LRD BLUFF DR

Good

Over: ROCKY RUN CREEK

0.7M W JCT STH 80, Wood, WI

Built 1982 Load: 48.6 t ADT: 201

LRD RIDGE RD

Good

Over: BR MOCCASIN CREEK

1.1M S JCT CTH Q, Wood, WI

Built 1987 Load: 48.6 t ADT: 306

LRD CHURCH RD

Good

Over: HEMLOCK CREEK

0.3M N JCT CTH N, Wood, WI

Built 2001 Load: 48.6 t ADT: 280

LRD EDGEWOOD DR

Good

Over: BR WISCONSIN RIVER

0.6M W JCT CTH Z, Adams, WI

Built 2009 Load: 50.2 t ADT: 164

LRD COUNTY LINE RD

Good

Over: BR KEWAUNEE RIVER

1.4M N JCT STH 54, Brown, WI

Built 1989 Load: 50.2 t ADT: 113

CTH HS

Good

Over: LANCASTER BROOK

0.2M N JCT GLENDALE AVE, Brown, WI

Built 1990 Load: 50.2 t ADT: 9,800

LRD ROTERING RIDGE

Good

Over: KNECHT VALLEY CREEK

0.5M S JCT CTH E, Buffalo, WI

Built 1986 Load: 50.2 t ADT: 46

STH 25

Good

Over: MISSISSIPPI RIVER SLOUGH

2.1M N MINN STATE LINE, Buffalo, WI

Built 2010 Load: 50.2 t ADT: 4,500

STH 35

Good

Over: ST CROIX RIVER 10

5.6M N JCT STH 77 TO E, Burnett, WI

Built 2007 Load: 50.2 t ADT: 1,100

CTH N

Good

Over: ELK CREEK

0.4 M SW OF 35TH ST, Chippewa, WI

Built 2006 Load: 50.2 t ADT: 740

LRD NORWEGIAN HOLL

Good

Over: BR JOHNSON VALLEY CREEK

2.7M N JCT CTH C, Crawford, WI

Built 1992 Load: 50.2 t ADT: 200

LRD GERSTNER LANE

Good

Over: BR KICKAPOO RIVER

1.8M W JCT STH 131, Crawford, WI

Built 2003 Load: 50.2 t ADT: 10

LRD W HUDSON RD

Good

Over: BLACK EARTH CREEK

0.7M N JCT USH 14, Dane, WI

Built 2006 Load: 50.2 t ADT: 288

LRD OBSERVATORY DR

Good

Over: WILLOW CREEK

0.3M NORTH OF CTH MS, Dane, WI

Built 2009 Load: 50.2 t ADT: 1

STH 60

Good

Over: ROCK RIVER

1.7M E JCT CTH E, Dodge, WI

Built 2008 Load: 50.2 t ADT: 6,200

LRD DAVIS ST.

Good

Over: BEAVER DAM RIVER

0.6M S JCT STH 33, Dodge, WI

Built 2007 Load: 50.2 t ADT: 1,528

LRD CTH WH

Good

Over: LUCO CREEK

1.4M N JCT USH 45 TO N, Fond du Lac, WI

Built 2010 Load: 50.2 t ADT: 6,900

CTH P

Good

Over: RICHLAND CREEK

0.9M E JCT STH 69, Green, WI

Built 2007 Load: 50.2 t ADT: 283

LRD UPPER WYOMING

Good

Over: RUSH CREEK

1.7M S JCT STH 23, Iowa, WI

Built 1996 Load: 50.2 t ADT: 62

CTH F

Good

Over: BARK RIVER

0.9M N JCT CTH P, Jefferson, WI

Built 2007 Load: 50.2 t ADT: 2,080

LRD SPEEDWAY RD

Good

Over: SPRAGUE MATHER FLOWAGE

4.5M W JCT STH 80, Juneau, WI

Built 2005 Load: 50.2 t ADT: 105

CTH Z

Good

Over: WOOD BRANCH

2.3M W JCT CTH F, Lafayette, WI

Built 2006 Load: 50.2 t ADT: 239

IH 39SB

Good

Over: BULL JUNIOR CREEK

7.3M S JCT STH 29 TO E, Marathon, WI

Built 2009 Load: 50.2 t ADT: 29,800

USH 41 NB

Good

Over: PESHTIGO R

AT PESHTIGO RIVER, Marinette, WI

Built 2009 Load: 50.2 t ADT: 5,700

LRD W MORGAN AVE

Good

Over: ROOT RIVER

0.3M W JCT STH 100, Milwaukee, WI

Built 1995 Load: 50.2 t ADT: 2,700

STH 27

Good

Over: LA CROSSE RIVER

0.5M N JCT IH 90 TO W, Monroe, WI

Built 1953 Load: 50.2 t ADT: 10,400

LRD BUCHANAN ROAD

Good

Over: BR APPLE CREEK

0.8 M S JCT CTH JJ, Outagamie, WI

Built 2009 Load: 50.2 t ADT: 1,000

Showing 13,751-13,800 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.