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

IH USH 51-IH 39 SB

Good

Over: WISCONSIN RIVER 26

2.6M S JCT STH 29 TO E, Marathon, WI

Built 1968 Load: 35.6 t ADT: 37,700

LRD RIVER RD

Good

Over: LITTLE EAU PLEINE RIVER

0.1M S JCT STH 153, Marathon, WI

Built 1984 Load: 35.6 t ADT: 100

LRD NAUGERT RD

Good

Over: BR LITTLE RIB RIVER

1.3M W JCT CTH O, Marathon, WI

Built 2004 Load: 35.6 t ADT: 25

LRD SHANTY TOWN DR

Good

Over: PLOVER RIVER

1.0M W JCT CTH Y, Marathon, WI

Built 1989 Load: 35.6 t ADT: 100

LRD LINCOLN RD (DE

Good

Over: MCGINNIS CREEK

0.5M W JCT CTH S, Marathon, WI

Built 1992 Load: 35.6 t ADT: 12

LRD NAUGART RD

Good

Over: GRASS CREEK

1.7M E JCT CTH S, Marathon, WI

Built 1993 Load: 35.6 t ADT: 22

LRD HIGHLAND RD

Good

Over: E BR BIG SANDY CREEK

0.5M N JCT CTH Z, Marathon, WI

Built 1997 Load: 35.6 t ADT: 21

STH 153

Good

Over: FREEMAN CREEK

1.0M E JCT CTH S, Marathon, WI

Built 2001 Load: 35.6 t ADT: 3,600

STH 153

Good

Over: HOG CREEK

3.4M E JCT STH 107, Marathon, WI

Built 2001 Load: 35.6 t ADT: 3,300

USH 51 NB-STH 29 W

Good

Over: BIG RIB RIVER

1.7M S JCT STH 29 TO W, Marathon, WI

Built 2008 Load: 35.6 t ADT: 30,550

LRD BIG RIB RIVER

Good

Over: GRASS CREEK

1.2M E JCT CTH S, Marathon, WI

Built 2005 Load: 35.6 t ADT: 36

CTH C

Good

Over: LITTLE EAU PLEIN RIVER

1.9 MI. W. OF STH 97, Marathon, WI

Built 2003 Load: 35.6 t ADT: 1,000

LRD PIT RD

Good

Over: BIG SANDY CR

1.2 MI N JCT STH 52, Marathon, WI

Built 2013 Load: 35.6 t ADT: 75

CTH N

Good

Over: WISCONSIN RIVER 30

0.2M W JCT USH B51, Marathon, WI

Built 1951 Load: 35.6 t ADT: 16,100

LRD SODA CREEK RD

Good

Over: BR SCOTCH CREEK

0.8M E JCT CTH S, Marathon, WI

Built 1930 Load: 35.6 t ADT: 89

LRD TWIN LAKES RD

Good

Over: N BR PIKE RIVER

1.9M S JCT USH 8, Marinette, WI

Built 1997 Load: 35.6 t ADT: 100

CTH W

Good

Over: OUTLET CREEK

0.1M N JCT CTH GG, Marinette, WI

Built 1986 Load: 35.6 t ADT: 2,311

LRD NOQUEBAY RD

Good

Over: OUTLET CREEK

0.6M N JCT CTH GG, Marinette, WI

Built 1987 Load: 35.6 t ADT: 140

LRD OLD COUNTY A

Good

Over: N BR PIKE RIVER

1.7M S JCT USH 8, Marinette, WI

Built 1987 Load: 35.6 t ADT: 150

USH 141

Good

Over: MIDDLE INLET CREEK

0.2M N JCT CTH X, Marinette, WI

Built 1989 Load: 35.6 t ADT: 5,500

USH 141

Good

Over: UPPER MIDDLE INLET CREEK

3.5M N JCT CTH X, Marinette, WI

Built 1989 Load: 35.6 t ADT: 5,500

LRD E BARKER RD

Good

Over: PIKE RIVER

5.4M E JCT USH 141, Marinette, WI

Built 1989 Load: 35.6 t ADT: 150

LRD SWEDE JOHN RD

Good

Over: PESHTIGO RIVER

9.5M S JCT USH 8, Marinette, WI

Built 1993 Load: 35.6 t ADT: 100

LRD N 7TH RD (DEAD

Good

Over: LITTLE PESHTIGO RIVER

0.1M N JCT CTH B, Marinette, WI

Built 1999 Load: 35.6 t ADT: 5

CTH P

Good

Over: NEENAH CREEK

0.5M W JCT CTH O, Marquette, WI

Built 2004 Load: 35.6 t ADT: 160

LRD W 4TH ST/CTH E

Good

Over: WESTFIELD CREEK

0.7M W JCT USH 51, Marquette, WI

Built 2004 Load: 35.6 t ADT: 2,400

CTH CX

Good

Over: CHAPMAN CREEK

2.3M N JCT CTH P, Marquette, WI

Built 2023 Load: 35.6 t ADT: 800

STH IRR (STH 47)

Good

Over: W BR WOLF RIVER

7.9M N JCT CTH M, Menominee, WI

Built 2004 Load: 35.6 t ADT: 510

STH 190 WB-CAPITOL

Good

Over: MENOMONEE RIVER

0.3M W JCT STH 100, Milwaukee, WI

Built 2003 Load: 35.6 t ADT: 19,500

IH 794 EB - LAKE I

Good

Over: LAND

1.3 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 35.6 t ADT: 39,850

LRD S 6TH ST

Good

Over: CENTRAL PACIFIC RR

0.2M S JCT CANAL ST, Milwaukee, WI

Built 2002 Load: 35.6 t ADT: 13,675

LRD N 6TH ST

Good

Over: HANK AARON STATE TRAIL/P

0.1M N JCT CANAL ST, Milwaukee, WI

Built 2002 Load: 35.6 t ADT: 5,300

LRD GREEN TREE RD

Good

Over: MILWAUKEE RIVER

0.3M S JCT CTH PP, Milwaukee, WI

Built 2002 Load: 35.6 t ADT: 2,500

STH 241-27TH ST

Good

Over: KINNICKINNIC RIVER

2.0M N JCT IH 894 TO E, Milwaukee, WI

Built 1963 Load: 35.6 t ADT: 24,900

USH 18 EB-WELLS ST

Good

Over: MILWAUKEE RIVER

1.6M E JCT STH 57 TO N, Milwaukee, WI

Built 1985 Load: 35.6 t ADT: 5,000

LRD WEST BRADLEY R

Good

Over: LITTLE MENOMONEE RIVER

1.8M E JCT STH 145, Milwaukee, WI

Built 2006 Load: 35.6 t ADT: 10,200

CTH EE W HAMPTON

Good

Over: MENOMONEE RIVER

0.2M E JCT USH 45 TO S, Milwaukee, WI

Built 2005 Load: 35.6 t ADT: 8,900

CTH EE - W HAMPTON

Good

Over: MENOMONEE RIVER

0.1M E USH 45, Milwaukee, WI

Built 2004 Load: 35.6 t ADT: 8,900

LRD MILWAUKEE RIVE

Good

Over: MILWAUKEE RIVER

VILLAGE OF GLENDALE, Milwaukee, WI

Built 2007 Load: 35.6 t ADT: 2,277

STH 794 SB (LAKE P

Good

Over: EDGERTON CHANNEL

1.5 MI S JCT HOWARD AVE, Milwaukee, WI

Built 2005 Load: 35.6 t ADT: 10,300

LRD HONEY CREEK PA

Good

Over: HONEY CREEK

0.4M N JCT USH 18, Milwaukee, WI

Built 2008 Load: 35.6 t ADT: 3,762

LRD EB W BURLEIGH

Good

Over: MENOMONEE RIVER

1.4M W JCT STH 181, Milwaukee, WI

Built 1966 Load: 35.6 t ADT: 17,500

LRD S 1ST ST

Good

Over: KINNICKINNIC RIVER

0.3M S JCT STH 32, Milwaukee, WI

Built 1958 Load: 35.6 t ADT: 5,984

LRD W VILLARD AVE

Good

Over: LINCOLN CREEK

0.4M W JCT STH 57, Milwaukee, WI

Built 1955 Load: 35.6 t ADT: 9,100

STH 27

Good

Over: CP RR/BIKE TRAIL

0.2M N JCT IH 90 TO W, Monroe, WI

Built 1953 Load: 35.6 t ADT: 11,700

LRD FINCH AVE

Good

Over: BAILEY CREEK

0.2 MI E JCT CTH I, Monroe, WI

Built 2018 Load: 35.6 t ADT: 250

STH 27-STH 71

Good

Over: W BEAVER CREEK

2.5M N JCT CTH B, Monroe, WI

Built 1989 Load: 35.6 t ADT: 4,600

LRD WALRATH ST

Good

Over: FARMERS VALLEY CREEK

0.2M E JCT STH 16, Monroe, WI

Built 1989 Load: 35.6 t ADT: 1,700

STH 131

Good

Over: KICKAPOO RIVER

2.3M N JCT CTH T, Monroe, WI

Built 1991 Load: 35.6 t ADT: 1,400

STH 71

Good

Over: FARMERS VALLEY CREEK

3.2M E JCT STH 16 TO E, Monroe, WI

Built 1991 Load: 35.6 t ADT: 1,600

Showing 10,551-10,600 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.