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 W

Fair

Over: PESHTIGO RIVER

1.2M N JCT STH 64, Marinette, WI

Built 1998 Load: 30.8 t ADT: 1,700

STH 22

Fair

Over: MECAN RIVER

4.0M N JCT CTH J, Marquette, WI

Built 1951 Load: 30.8 t ADT: 1,700

STH 23-MONTELLO AV

Fair

Over: MONTELLO RIVER

0.2M E JCT CTH Y, Marquette, WI

Built 1948 Load: 30.8 t ADT: 5,900

LRD CHERRY ST

Fair

Over: CP RAILROAD

0.8M W JCT STH 57, Milwaukee, WI

Built 1998 Load: 30.8 t ADT: 407

STH 100 NB-S 108TH

Fair

Over: HAST (ABANDONED CMSTPP R

0.7 MI N JCT STH 59, Milwaukee, WI

Built 1961 Load: 30.8 t ADT: 12,650

STH 190 EB/CAPITOL

Fair

Over: MENOMONEE RIVER

0.3 MI E JCT IH 41, Milwaukee, WI

Built 1966 Load: 30.8 t ADT: 19,500

IH 41/USH 45 SB-ZO

Fair

Over: UP RR

0.5M S JCT STH 190 TO E, Milwaukee, WI

Built 1967 Load: 30.8 t ADT: 78,500

IH RAMP, LINCOLN M

Fair

Over: LAND

1.3 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 30.8 t ADT: 16,150

USH 18-W BLUE MOUN

Fair

Over: HONEY CREEK

0.2M E JCT STH 181, Milwaukee, WI

Built 1928 Load: 30.8 t ADT: 15,100

STH 27

Fair

Over: BR SHAMROCK CREEK

2.1M N JCT CTH SS, Monroe, WI

Built 1951 Load: 30.8 t ADT: 3,400

IH 94 EB

Fair

Over: UP RR

5.7M E JCT CTH O TO S, Monroe, WI

Built 1968 Load: 30.8 t ADT: 12,650

STH 131

Fair

Over: KICKAPOO RIVER

1.7M N JCT CTH Z, Monroe, WI

Built 1979 Load: 30.8 t ADT: 1,500

STH 71

Fair

Over: DORSET VALLEY CREEK

0.5M E JCT STH 131 TO N, Monroe, WI

Built 1984 Load: 30.8 t ADT: 2,700

CTH N

Fair

Over: INDIAN CREEK

0.1M N JCT CTH A, Monroe, WI

Built 1963 Load: 30.8 t ADT: 460

USH 41 NB

Fair

Over: PENSAUKEE RIVER

0.4M N JCT CTH SS, Oconto, WI

Built 1967 Load: 30.8 t ADT: 6,350

LRD BRAZEAU AVE

Fair

Over: OCONTO RIVER

5.6M N JCT CTH SS, Oconto, WI

Built 1986 Load: 30.8 t ADT: 4,200

LRD BONITA RD

Fair

Over: FIRST S BR OCONTO RIVER

3.2M S JCT CTH W, Oconto, WI

Built 1957 Load: 30.8 t ADT: 10

USH 51

Fair

Over: WIS CENTRAL RR

1.7M N JCT USH 8 TO W, Oneida, WI

Built 1992 Load: 30.8 t ADT: 7,100

LRD OLD HWY 8

Fair

Over: SLAUGHTERHOUSE CREEK

0.6M E JCT USH 8, Oneida, WI

Built 1985 Load: 30.8 t ADT: 905

CTH D

Fair

Over: CHAIN ECHO CHANNEL

3.6M W JCT STH 17, Oneida, WI

Built 1976 Load: 30.8 t ADT: 1,075

CTH C

Fair

Over: DUCK CREEK

0.6M N JCT CTH S, Outagamie, WI

Built 1964 Load: 30.8 t ADT: 1,947

LRD FISH CREEK RD

Fair

Over: DUCK CREEK

0.3M W JCT CTH E, Outagamie, WI

Built 1992 Load: 30.8 t ADT: 168

USH 15

Fair

Over: BLACK OTTER CREEK

0.3M N JCT CTH M, Outagamie, WI

Built 1921 Load: 30.8 t ADT: 13,600

LRD CEDAR BEACH RD

Fair

Over: SAUK CREEK

0.5M W JCT CTH KW, Ozaukee, WI

Built 1981 Load: 30.8 t ADT: 58

LRD KAEHLERS MILL

Fair

Over: CEDAR CREEK

1.1M E JCT CTH NN, Ozaukee, WI

Built 1986 Load: 30.8 t ADT: 253

LRD GREEN BAY RD

Fair

Over: PIGEON CREEK

0.1M E JCT STH 57, Ozaukee, WI

Built 1992 Load: 30.8 t ADT: 5,500

CTH SS

Fair

Over: PLUM CREEK

2.4M S JCT CTH D TO N, Pepin, WI

Built 1980 Load: 30.8 t ADT: 163

STH 29

Fair

Over: TRIMBELLE RIVER

0.1M E JCT CTH W, Pierce, WI

Built 1941 Load: 30.8 t ADT: 2,500

LRD 530TH ST

Fair

Over: LOST CREEK

0.2M N JCT STH 72, Pierce, WI

Built 1979 Load: 30.8 t ADT: 87

LRD 330TH ST

Fair

Over: BR CAVE CREEK

1.1M E JCT CTH BB, Pierce, WI

Built 1980 Load: 30.8 t ADT: 87

CTH CC

Fair

Over: BLACK BROOK FLOWAGE

1.6M N JCT STH 46, Polk, WI

Built 1986 Load: 30.8 t ADT: 705

CTH G

Fair

Over: FOX CREEK

1.0M E JCT CTH I, Polk, WI

Built 1950 Load: 30.8 t ADT: 802

IH USH51-IH39SB

Fair

Over: WCL RR

0.8M S JCT USH 10 TO E, Portage, WI

Built 1969 Load: 30.8 t ADT: 15,800

CTH S

Fair

Over: HAYDEN CREEK

0.5M N JCT CTH M, Portage, WI

Built 1981 Load: 30.8 t ADT: 559

LRD N ELM RD

Fair

Over: MILL CREEK

1.2M E JCT CTH O, Portage, WI

Built 1986 Load: 30.8 t ADT: 46

STH 13

Fair

Over: S FK FLAMBEAU RIVER

11.1M N JCT CTH F, Price, WI

Built 1972 Load: 30.8 t ADT: 3,600

CTH K

Fair

Over: GOOSE LAKE BRANCH CANAL

0.3M E JCT CTH S, Racine, WI

Built 1938 Load: 30.8 t ADT: 2,200

STH 58

Fair

Over: WILLOW CREEK

0.1M N JCT CTH D, Richland, WI

Built 1984 Load: 30.8 t ADT: 520

CTH E

Fair

Over: MILL CREEK

2.8M E JCT CTH G, Richland, WI

Built 1979 Load: 30.8 t ADT: 327

USH 14

Fair

Over: RYAN HOLLOW CREEK

3.3M E JCT CTH G, Richland, WI

Built 1987 Load: 30.8 t ADT: 2,100

LRD SPANGLER RIDGE

Fair

Over: W BR PINE RIVER

0.1M W JCT CTH D, Richland, WI

Built 1986 Load: 30.8 t ADT: 45

STH 80

Fair

Over: MELANCTHON CREEK

1.4M N JCT CTH C, Richland, WI

Built 1988 Load: 30.8 t ADT: 1,400

USH 14

Fair

Over: W BR MILL CREEK

1.6M E JCT CTH G, Richland, WI

Built 1947 Load: 30.8 t ADT: 2,100

LRD HENRY AVE

Fair

Over: ROCK RIVER

0.1M W JCT USH 51, Rock, WI

Built 1956 Load: 30.8 t ADT: 11,400

CTH H

Fair

Over: YAHARA RIVER

0.2M N JCT CTH M TO E, Rock, WI

Built 1952 Load: 30.8 t ADT: 999

CTH D

Fair

Over: BR ROCK RIVER

2.5M N JCT CTH Q, Rock, WI

Built 1959 Load: 30.8 t ADT: 3,331

CTH Q NEWARK RD

Fair

Over: ROCK RIVER

0.1M W JCT USH 51, Rock, WI

Built 1972 Load: 30.8 t ADT: 9,300

CTH HWY D

Fair

Over: BASS CREEK

4.4M N JCT CTH Q, Rock, WI

Built 1998 Load: 30.8 t ADT: 4,218

STH 59

Fair

Over: YAHARA RIVER

3.7M E JCT STH 138, Rock, WI

Built 1946 Load: 30.8 t ADT: 2,000

CTH P

Fair

Over: FLAMBEAU RIVER

0.8M E JCT CTH E--10, Rusk, WI

Built 1981 Load: 30.8 t ADT: 781

Showing 5,101-5,150 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.