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 COUNTY RUSTIC

Good

Over: PEA CREEK

1.5M W CTH H, Eau Claire, WI

Built 1994 Load: 47.0 t ADT: 51

USH 151 SB

Good

Over: E BR FOND DU LAC R

AT E BR FOND DU LAC R, Fond du Lac, WI

Built 2008 Load: 47.0 t ADT: 5,750

LRD CTH RP

Good

Over: ANDERSON CREEK

1.5M N JCT CTH OO, Fond du Lac, WI

Built 2006 Load: 47.0 t ADT: 1,800

CTH Q

Good

Over: S BR MANITOWOC RIVER

0.1M S JCT CTH W, Fond du Lac, WI

Built 2006 Load: 47.0 t ADT: 1,567

STH 133-MAIN ST

Good

Over: POTOSI BRANCH

3.0M N JCT STH 32/USH 61, Grant, WI

Built 1997 Load: 47.0 t ADT: 810

LRD WISCONSIN VALL

Good

Over: TRIB. TO BIG GREEN RIVER

0.3 MI N JCT CTH T, Grant, WI

Built 2008 Load: 47.0 t ADT: 102

CTH FF

Good

Over: BELLE FOUNTAIN CREEK

0.1M N JCT STH 44, Green Lake, WI

Built 1985 Load: 47.0 t ADT: 470

STH 73

Good

Over: BLACK CREEK

1.7M N JCT CTH Y, Green Lake, WI

Built 2001 Load: 47.0 t ADT: 2,600

LRD BYRN GRWYNN RD

Good

Over: BR TROUT CREEK

1.0M E JCT CTH T, Iowa, WI

Built 2001 Load: 47.0 t ADT: 83

LRD SANDY ROCK RD

Good

Over: BLUE MOUNDS CREEK

1.5M E JCT CTH F, Iowa, WI

Built 1988 Load: 47.0 t ADT: 104

LRD KELLY RD

Good

Over: STONY CREEK

1.1M N JCT CTH O, Jackson, WI

Built 1997 Load: 47.0 t ADT: 40

USH 12

Good

Over: ROBINSON CREEK

11.6M E JCT STH 27 TO S, Jackson, WI

Built 2004 Load: 47.0 t ADT: 1,700

LRD ELM RD

Good

Over: OCONOMOWOC RIVER

0.4M N JCT CTH B, Jefferson, WI

Built 2007 Load: 47.0 t ADT: 101

CTH Y

Good

Over: TRIB TO ROCK RIVER

0.1 MI. SOUTH OF STH 26, Jefferson, WI

Built 2010 Load: 47.0 t ADT: 1,854

STH 26 NB

Good

Over: WISCONSIN & SOUTHERN RR

0.35 MI. N OF CTH T, Jefferson, WI

Built 2011 Load: 47.0 t ADT: 9,000

STH 26 SB

Good

Over: WISCONSIN & SOUTHERN RR

0.2 MI. S OF STH 19, Jefferson, WI

Built 2011 Load: 47.0 t ADT: 9,000

STH 173

Good

Over: BEAVER CREEK

2.7M N JCT CTH H, Juneau, WI

Built 1999 Load: 47.0 t ADT: 1,200

LRD RAESE RD

Good

Over: SEYMOUR CREEK

1.7M N JCT STH 33, Juneau, WI

Built 2003 Load: 47.0 t ADT: 150

LRD 2ND AVE SOUTH

Good

Over: BEAR CREEK

3.0M S JCT STH 21, Juneau, WI

Built 1976 Load: 47.0 t ADT: 41

LRD HORSESHOE BEND

Good

Over: GALENA RIVER

0.5M N JCT STH 11, Lafayette, WI

Built 1994 Load: 47.0 t ADT: 38

STH 78

Good

Over: BR TROUT BROOK CR

4.0M N JCT CTH W, Lafayette, WI

Built 2003 Load: 47.0 t ADT: 790

LRD ROLLER COASTER

Good

Over: AMES BRANCH

0.7M E JCT CTH K, Lafayette, WI

Built 2008 Load: 47.0 t ADT: 104

STH 64

Good

Over: WEST BR PINE RIVER

2.6M E JCT USH 51 TO N, Lincoln, WI

Built 1994 Load: 47.0 t ADT: 2,800

LRD REIFS MILLS RD

Good

Over: BRANCH RIVER

0.6M W JCT CTH "J", Manitowoc, WI

Built 1993 Load: 47.0 t ADT: 234

CTH N

Good

Over: PLOVER RIVER

0.1M E JCT CTH Y, Marathon, WI

Built 2008 Load: 47.0 t ADT: 1,306

USH 141 SB

Good

Over: LITTLE PESHTIGO RIVER

AT LITTLE PESHTIGO RIVER, Marinette, WI

Built 2005 Load: 47.0 t ADT: 5,650

USH 41 SB

Good

Over: PESHTIGO R

AT PESHTIGO R, Marinette, WI

Built 2009 Load: 47.0 t ADT: 5,700

STH 64

Good

Over: PESHTIGO RIVER

2.1M E JCT CTH E TO S, Marinette, WI

Built 2008 Load: 47.0 t ADT: 3,800

LRD 19TH COURT

Good

Over: LUNCH CREEK

1.6M N JCT CTH E, Marquette, WI

Built 2002 Load: 47.0 t ADT: 200

STH 23

Good

Over: OX CR

0.53M E CTH M, Marquette, WI

Built 2008 Load: 47.0 t ADT: 4,100

LRD OSAGE AVE

Good

Over: BILLINGS CREEK

0.1M E JCT CTH Z, Monroe, WI

Built 2006 Load: 47.0 t ADT: 31

LRD ROST RD

Good

Over: TIBBET CREEK

0.6M E JCT CTH J, Oconto, WI

Built 1994 Load: 47.0 t ADT: 35

CTH Y

Good

Over: SMITHS CREEK

5.0M N JCT CTH S, Oconto, WI

Built 2007 Load: 47.0 t ADT: 1,123

CTH N

Good

Over: LITTLE RICE CREEK

1.8M W JCT USH 8, Oneida, WI

Built 2007 Load: 47.0 t ADT: 301

USH 45

Good

Over: GREEN BAY & WESTERN RR

7.7M N JCT CTH M, Outagamie, WI

Built 1994 Load: 47.0 t ADT: 8,900

LRD LAMBIE RD

Good

Over: BR DUCK CREEK

0.1M N JCT CTH EE, Outagamie, WI

Built 1998 Load: 47.0 t ADT: 299

STH 85

Good

Over: BEAR CREEK

1.0M E JCT USH 10 TO E, Pepin, WI

Built 2008 Load: 47.0 t ADT: 3,400

CTH M

Good

Over: MANN VALLEY CRREK

4.0M E JCT CTH F TO N, Pierce, WI

Built 1996 Load: 47.0 t ADT: 1,545

CTH AA

Good

Over: PINE CREEK

0.7M EAST OF STH35, Pierce, WI

Built 2010 Load: 47.0 t ADT: 51

LRD 465TH AVENUE

Good

Over: LOST CREEK

1.8 MI N JCT USH-10, Pierce, WI

Built 2009 Load: 47.0 t ADT: 535

CTH E

Good

Over: SMITH CREEK

2.1M W JCT STH 13, Price, WI

Built 2007 Load: 47.0 t ADT: 838

LRD DIETER HOLLOW

Good

Over: DIETER HOLLOW CREEK

1.2M E JCT CTH X, Richland, WI

Built 1990 Load: 47.0 t ADT: 56

STH 58

Good

Over: WILLOW CREEK TRIB

0.1M S JCT STH 154, Richland, WI

Built 2002 Load: 47.0 t ADT: 1,800

CTH RC

Good

Over: PINE RIVER

0.5M E JCT STH 80, Richland, WI

Built 2002 Load: 47.0 t ADT: 1,200

STH 56

Good

Over: KICKAPOO RIVER

0.4M E JCT STH 131, Richland, WI

Built 2008 Load: 47.0 t ADT: 1,100

LRD DICKEY RD

Good

Over: SWAN CREEK

0.7M N JCT STH 11, Rock, WI

Built 1997 Load: 47.0 t ADT: 47

LRD ORFORDVILLE-HA

Good

Over: BR BASS CREEK

1.8M E JCT STH 213, Rock, WI

Built 1997 Load: 47.0 t ADT: 292

CTH H

Good

Over: MARSH CREEK

1.6M N JCT CTH A, Rock, WI

Built 2008 Load: 47.0 t ADT: 4,300

LRD DEER TAIL CREE

Good

Over: DEER TAIL CREEK

1.6M W JCT CTH I-69, Rusk, WI

Built 1990 Load: 47.0 t ADT: 86

LRD TOWN LINE RD

Good

Over: N FK MAIN CREEK

0.5M W JCT CTH B-110, Rusk, WI

Built 1999 Load: 47.0 t ADT: 67

Showing 13,601-13,650 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.