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 X

Unknown

Over: IH 94

2.7M E JCT STH 26 TO N, Jefferson, WI

Built 1964 ADT: 42,800

LRD SWITZKE RD (DE

Unknown

Over: IH 94

1.8M E JCT STH 26 TO N, Jefferson, WI

Built 1964 ADT: 42,800

CTH D

Unknown

Over: IH 94

4.5M E JCT STH 26 TO N, Jefferson, WI

Built 1964 ADT: 42,800

IH 94 EB

Unknown

Over: CTH P

0.6M N JCT CTH B, Jefferson, WI

Built 1964 ADT: 402

IH 94 WB

Unknown

Over: CTH P

0.6M N JCT CTH B, Jefferson, WI

Built 1964 ADT: 402

IH 94 EB

Unknown

Over: LRD HILLSIDE RD

0.7M N JCT CTH B, Jefferson, WI

Built 1964 ADT: 95

CTH O

Unknown

Over: IH 94

3.9M E JCT STH 73 TO N, Jefferson, WI

Built 1964 ADT: 38,300

LRD AIRPORT RD

Unknown

Over: IH 94

5.2M E JCT STH 73 TO N, Jefferson, WI

Built 1964 ADT: 38,300

IH 94 EB

Unknown

Over: LRD NEWVILLE RD

1.2M N JCT CTH B, Jefferson, WI

Built 1964 ADT: 260

IH 94 WB

Unknown

Over: LRD NEWVILLE RD

1.2M N JCT CTH B, Jefferson, WI

Built 1965 ADT: 260

IH 94 EB

Unknown

Over: LRD ROCK LAKE RD

0.2M N JCT CTH B, Jefferson, WI

Built 1964 ADT: 603

IH 94 WB

Unknown

Over: LRD ROCK LAKE RD

0.2M N JCT CTH B, Jefferson, WI

Built 1965 ADT: 603

STH 89

Unknown

Over: IH 94

9.2M E JCT STH 73 TO N, Jefferson, WI

Built 1964 ADT: 38,300

CTH A

Unknown

Over: IH 94

0.9M E JCT STH 89 TO N, Jefferson, WI

Built 1965 ADT: 37,700

LRD ZIEBELL RD

Unknown

Over: IH 94

4.0M E JCT STH 89 TO N, Jefferson, WI

Built 1964 ADT: 37,700

CTH N

Unknown

Over: IH 94

5.5M E JCT STH 89 TO N, Jefferson, WI

Built 1964 ADT: 37,700

CTH E

Unknown

Over: IH 94

8.0M E JCT STH 26 TO N, Jefferson, WI

Built 1964 ADT: 41,900

CTH F

Unknown

Over: IH 94

9.3M E JCT STH 26 TO N, Jefferson, WI

Built 1963 ADT: 49,200

IH 94 EB

Unknown

Over: LRD WILLOW GLEN RD

0.3M S JCT CTH B, Jefferson, WI

Built 1963 ADT: 1,300

IH 94 WB

Unknown

Over: LRD WILLOW GLEN RD

0.3M S JCT CTH B, Jefferson, WI

Built 1963 ADT: 1,300

STH 26 NB

Unknown

Over: LRD BLACKHAWK ISLAND ROA

1.6M W JCT STH 106, Jefferson, WI

Built 1994 ADT: 99

STH B26

Unknown

Over: STH 26

4.9M N JCT CTH N, Jefferson, WI

Built 1994 ADT: 12,900

STH 26 NB

Unknown

Over: STH 106

0.8M E JCT CTH J TO N, Jefferson, WI

Built 1995 ADT: 2,000

STH NB STH 26

Unknown

Over: USH 12

8.2M E JCT STH 134, Jefferson, WI

Built 1994 ADT: 13,400

STH 89

Unknown

Over: STH 26

1.7M N JCT USH 12 TO E, Jefferson, WI

Built 1995 ADT: 12,700

LRD SKI SLIDE RD

Unknown

Over: STH 16

AT SKI SLIDE RD, Jefferson, WI

Built 2005 ADT: 6,100

LRD WISCONSIN AVEN

Unknown

Over: STH 16

AT SKI SLIDE RD, Jefferson, WI

Built 2005 ADT: 6,100

STH 16

Unknown

Over: CTH CW

CITY OF WATERTOWN, Jefferson, WI

Built 1999 ADT: 4,300

IH EB IH 94

Unknown

Over: STH 26

0.8M N JCT CTH B, Jefferson, WI

Built 2001 ADT: 99

IH WB IH 94

Unknown

Over: STH 26

0.8M N JCT CTH B, Jefferson, WI

Built 2002 ADT: 99

IH EB IH 94

Unknown

Over: LRD WATERTOWN STREET

0.5M S OF JCT RIVER DR, Jefferson, WI

Built 2001 ADT: 99

IH WB IH 94

Unknown

Over: LRD WATERTOWN ST

0.5M S OF JCT RIVER DR, Jefferson, WI

Built 2002 ADT: 99

LRD POND RD

Unknown

Over: STH 26

AT POND RD, Jefferson, WI

Built 2014 ADT: 12,900

LRD WHITETAIL LANE

Unknown

Over: STH 26

0.8 MI. S OF BUS. 26, Jefferson, WI

Built 2013 ADT: 12,900

STH 26 SB

Unknown

Over: LRD BLACKHAWK ISLAND ROA

1.6M W JCT STH 106, Jefferson, WI

Built 2011 ADT: 1

STH 26 SB

Unknown

Over: STH 106

AT INTERSECTION, Jefferson, WI

Built 2011 ADT: 2,000

STH 26 SB

Unknown

Over: USH 12

AT INTERSECTION, Jefferson, WI

Built 2011 ADT: 11,500

LRD HOARD RD

Unknown

Over: STH 26

AT INTERSECTION, Jefferson, WI

Built 2011 ADT: 12,700

LRD BANKER ROAD

Unknown

Over: STH 26

AT INTERSECTION, Jefferson, WI

Built 2011 ADT: 12,700

STH 26 NB

Unknown

Over: LRD N HIGH STREET (CTH K

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 3,500

STH 26 SB

Unknown

Over: LRD N HIGH STREET (CTH K

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 3,500

STH 26 NB

Unknown

Over: LRD BUS STH 26

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 10,000

STH 26 SB

Unknown

Over: LRD S MAIN STREET

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 10,000

CTH W

Unknown

Over: STH 26

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 13,000

CTH J

Unknown

Over: STH 26

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 13,000

STH 26 NB

Unknown

Over: USH 18

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 7,400

STH 26 SB

Unknown

Over: USH 18

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 7,400

STH 26 NB

Unknown

Over: LRD POPP RD

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 150

STH 26 SB

Unknown

Over: LRD POPP RD

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 150

STH 26 NB

Unknown

Over: CTH N

AT INTERSECTION, Jefferson, WI

Built 2010 ADT: 610

Showing 951-1,000 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.