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 K

Unknown

Over: STH 16/67

AT CTH K, Waukesha, WI

Built 2003 ADT: 10,700

STH164 SB-CTH J SB

Unknown

Over: IH 94

7.7M E JCT STH 83 TO N, Waukesha, WI

Built 1993 ADT: 112,000

CTH STH 164 NB - C

Unknown

Over: IH 94

7.7M E JCT STH 83 TO N, Waukesha, WI

Built 1993 ADT: 112,000

CTH JJ

Unknown

Over: IH 94

7.1M E JCT STH 83 TO N, Waukesha, WI

Built 1994 ADT: 112,000

STH 16 EB

Unknown

Over: IH 94

6.7M E JCT STH 83 TO N, Waukesha, WI

Built 1995 ADT: 83,300

CTH T

Unknown

Over: IH 94

6.1M E JCT STH 83 TO N, Waukesha, WI

Built 1995 ADT: 83,300

STH 16 WB

Unknown

Over: STH 67

0.4M N JCT CTH K, Waukesha, WI

Built 2003 ADT: 10,700

STH 16 EB

Unknown

Over: STH 67

2.0M S JCT CTH CW, Waukesha, WI

Built 2003 ADT: 10,700

LRD LANG RD

Unknown

Over: STH 16

LANG ROAD, Waukesha, WI

Built 2005 ADT: 6,100

CTH K

Unknown

Over: LRD LANNON STONE QUARRY

AT K, Waukesha, WI

Built 2008 ADT: 25

STH 318

Unknown

Over: IH 94

4.6M E JCT STH83 TO N, Waukesha, WI

Built 2000 ADT: 69,600

CTH SS

Unknown

Over: IH 94

3.8M E JCT STH 83 TO N, Waukesha, WI

Built 2001 ADT: 69,600

IH-94 EB

Unknown

Over: CTH P (SAWYER RD)

1.0M N US 18, Waukesha, WI

Built 2011 ADT: 5,400

IH 94 WB

Unknown

Over: CTH P

1.0M N US18, Waukesha, WI

Built 2011 ADT: 5,400

STH 67 SB

Unknown

Over: IH 94

6.3 M E JCT CTH F TO N, Waukesha, WI

Built 2015 ADT: 54,900

STH 67 NB

Unknown

Over: IH 94

1.5 MI W JCT CTH P, Waukesha, WI

Built 2016 ADT: 54,900

LRD PENNSYLVANIA S

Unknown

Over: STH 16

AT PENNYSYLVANIA ST, Waukesha, WI

Built 2005 ADT: 6,900

IH 43 SB

Unknown

Over: CTH O (MOORLAND RD)

0.2M S JCT CTH I, Waukesha, WI

Built 2008 ADT: 28,400

IH 43 NB

Unknown

Over: CTH O (MOORLAND RD)

0.2M S JCT CTH I, Waukesha, WI

Built 2008 ADT: 28,400

IH RAMP, CTH O SB

Unknown

Over: CTH O (MOORLAND RD)

AT 43, Waukesha, WI

Built 2008 ADT: 28,400

IH 43 NB

Unknown

Over: CTH I (BELOIT RD)

AT 43, Waukesha, WI

Built 2008 ADT: 11,000

IH43 SB

Unknown

Over: CTH I (BELOIT RD)

AT 43, Waukesha, WI

Built 2007 ADT: 9,000

CTH ES (NATIONAL A

Unknown

Over: CTH Y (RACINE AVENUE)

AT CTH ES, Waukesha, WI

Built 2009 ADT: 11,800

IH 94 WB

Unknown

Over: LRD CALHOUN RD

1.1M W OF, Waukesha, WI

Built 2008 ADT: 13,400

IH 94 EB

Unknown

Over: LRD CALHOUN RD

0.6 M S JCT USH 18, Waukesha, WI

Built 2009 ADT: 13,400

IH 43 NB

Unknown

Over: STH 164

AT 43, Waukesha, WI

Built 2010 ADT: 18,600

IH 43 SB

Unknown

Over: STH 164

AT 43, Waukesha, WI

Built 2010 ADT: 18,600

STH 190 WB

Unknown

Over: CTH F/ REDFORD BLVD

0.2M E JCT STH 190, Waukesha, WI

Built 2017 ADT: 27,200

STH 190 EB

Unknown

Over: CTH F/ REDFORD BLVD

0.1M E JCT STH 190, Waukesha, WI

Built 2017 ADT: 22,000

LRD PILGRIM ROAD S

Unknown

Over: IH 41/USH 45

@PILGRIM ROAD, Waukesha, WI

Built 2015 ADT: 84,700

LRD PILGRIM RD NB

Unknown

Over: IH 41/USH 45

AT PILGRIM ROAD, Waukesha, WI

Built 2015 ADT: 84,700

IH 94 EB

Unknown

Over: LRD DOUSMAN ROAD

AT IH 94 EB, Waukesha, WI

Built 2016 ADT: 1,600

IH 94 WB

Unknown

Over: LRD DOUSMAN ROAD

AT IH 94 WB, Waukesha, WI

Built 2016 ADT: 1,600

IH 94 EB

Unknown

Over: LRD GOLDEN LAKE RD

AT IH 94 EB, Waukesha, WI

Built 2016 ADT: 2,000

IH 94 WB

Unknown

Over: LRD GOLDEN LAKE ROAD

AT IH 94 WB, Waukesha, WI

Built 2016 ADT: 2,000

LRD SUNNYSLOPE ROA

Unknown

Over: IH 94

AT SUNNYSLOPE RD, Waukesha, WI

Built 2018 ADT: 137,000

LRD ELM GROVE ROAD

Unknown

Over: IH 94

LOCATION UNKNOWN, PLEASE, Waukesha, WI

Built 2017 ADT: 137,000

LRD SUNNY SLOPE RD

Unknown

Over: IH 43

4.2M N JCT CTH Y, Waukesha, WI

Built 2018 ADT: 65,800

LRD ELMHURST RD

Unknown

Over: IH 94

2.6M E JCT STH 83 TO N, Waukesha, WI

Built 2022 ADT: 70,350

UPRR

Unknown

Over: CTH P

0.2M S JCT CTH CW, Waukesha, WI

Built 2020 ADT: 5,425

CNW RR

Unknown

Over: LRD TOWN LINE RD

1.3M E JCT STH 164, Waukesha, WI

Built 1911 ADT: 14,100

WCL RR

Unknown

Over: STH 83-FRONT ST

0.6M N JCT IH 43 TO N, Waukesha, WI

Built 1920 ADT: 18,800

CNW RR

Unknown

Over: STH 83

0.3M N JCT CTH VV, Waukesha, WI

Built 1911 ADT: 5,600

CNW RR

Unknown

Over: LRD FUNK RD

0.2M W JCT CTH E, Waukesha, WI

Built 1910 ADT: 80

CNW RR

Unknown

Over: LRD NORWEGIAN RD

0.7M S JCT CTH C, Waukesha, WI

Built 1911 ADT: 80

CNW RR

Unknown

Over: LRD N WAUKESHA RD

0.2M N JCT STH 74, Waukesha, WI

Built 1920 ADT: 950

SOO LINE

Unknown

Over: LRD NEWHALL AVE

1.5M N JCT STH 59, Waukesha, WI

Built 1930 ADT: 3,000

USH 10 WB

Unknown

Over: STH 49S - STH 54W

8.0M S JCT CTH Q, Waupaca, WI

Built 1965 ADT: 13,800

USH STH110-MAIN ST

Unknown

Over: LRD WOLF RIVER RD & WOLF

0.1M S JCT CTH U, Waupaca, WI

Built 1976 ADT: 1,300

USH 10 E.B.

Unknown

Over: STH 49S - STH 54W

8.0M S JCT CTH Q, Waupaca, WI

Built 1996 ADT: 14,200

Showing 2,701-2,750 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.