State profile · Near median Poor share

Wisconsin bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Wisconsin, based on the FHWA National Bridge Inventory.

14,851
Public bridges
41.3%
Good condition
6.1%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 20.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Wisconsin vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Wisconsin on the same metric.

MS

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

SC

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396
Selected

WI

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

NC

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

HI

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Wisconsin

STH 100 WB-BROWN D

Fair

Over: MILWAUKEE RIVER

2.1M S JCT IH 43, Milwaukee, WI

Built 1979 Load: 27.5 t ADT: 12,450

LRD N SANTA MONICA

Fair

Over: CNW RR

0.2M W JCT STH 32, Milwaukee, WI

Built 1990 Load: 27.5 t ADT: 2,500

CTH US 76TH ST(NB)

Fair

Over: ROOT RIVER

0.4M N JCT CTH K, Milwaukee, WI

Built 1993 Load: 27.5 t ADT: 8,750

CTH US 76TH ST(SB)

Fair

Over: ROOT RIVER

0.4M N JCT CTH K, Milwaukee, WI

Built 1993 Load: 27.5 t ADT: 8,750

IH 90 EB (MP 44)

Fair

Over: CP RR

0.8M E JCT USH 12 TO E, Monroe, WI

Built 1963 Load: 27.5 t ADT: 8,200

IH 90 WB

Fair

Over: CP RR

1.3M W JCT IH 94 (D), Monroe, WI

Built 1963 Load: 27.5 t ADT: 8,200

CTH T

Fair

Over: MORRIS CREEK

0.3M S JCT CTH F, Monroe, WI

Built 1976 Load: 27.5 t ADT: 545

LRD CTH I

Fair

Over: KELLY BROOK

0.6M S JCT CTH A, Oconto, WI

Built 1981 Load: 27.5 t ADT: 201

CTH K

Fair

Over: OCONTO RIVER

1.0M S JCT STH 22, Oconto, WI

Built 1975 Load: 27.5 t ADT: 363

CTH M

Fair

Over: KELLY BROOK

0.9M W JCT CTH K, Oconto, WI

Built 1976 Load: 27.5 t ADT: 680

LRD PRAIRIE RAPIDS

Fair

Over: TOMAHAWK RIVER

1.4M W JCT USH 51, Oneida, WI

Built 1976 Load: 27.5 t ADT: 801

IH 41 SB

Fair

Over: SOO LINE

1.3M S JCT STH 47 TO N, Outagamie, WI

Built 1960 Load: 27.5 t ADT: 36,650

IH 41 NB

Fair

Over: SOO LINE

3.2M N JCT USH 10 TO E, Outagamie, WI

Built 1960 Load: 27.5 t ADT: 36,650

LRD KRULL RD

Fair

Over: BR TOAD CREEK

1.1M S JCT CTH F, Outagamie, WI

Built 1920 Load: 27.5 t ADT: 94

CTH I

Fair

Over: CEDAR CREEK

1.4M N JCT STH 60, Ozaukee, WI

Built 1969 Load: 27.5 t ADT: 5,400

USH 63

Fair

Over: SPRING CREEK

1.6M N JCT CTH K, Pierce, WI

Built 1952 Load: 27.5 t ADT: 4,100

USH 10

Fair

Over: BR RUSH RIVER

0.6M E JCT CTH A, Pierce, WI

Built 1954 Load: 27.5 t ADT: 2,500

STH 35

Fair

Over: HOPE COULEE CREEK

1.8M N JCT CTH O, Pierce, WI

Built 1960 Load: 27.5 t ADT: 3,500

CTH V

Fair

Over: ISABELLE CREEK

0.4M E JCT CTH C, Pierce, WI

Built 1983 Load: 27.5 t ADT: 566

LRD 535TH ST

Fair

Over: RUSH RIVER

0.3M S JCT USH 63, Pierce, WI

Built 1983 Load: 27.5 t ADT: 192

CTH O

Fair

Over: TRIMBELLE RIVER

2.9M S JCT USH 10, Pierce, WI

Built 1986 Load: 27.5 t ADT: 221

LRD 490TH AVE

Fair

Over: ISABELLE CREEK

0.3M E JCT CTH C, Pierce, WI

Built 1917 Load: 27.5 t ADT: 87

USH 8-STH 46

Fair

Over: APPLE RIVER

1.1M E JCT CTH H TO S, Polk, WI

Built 1973 Load: 27.5 t ADT: 8,200

LRD 150TH ST

Fair

Over: APPLE RIVER

1.1M S JCT CTH K, Polk, WI

Built 1976 Load: 27.5 t ADT: 253

IH USH51-IH39NB

Fair

Over: LITTLE PLOVER RIVER

3.0M N JCT STH 54 TO E, Portage, WI

Built 1969 Load: 27.5 t ADT: 11,050

IH USH51-IH39SB

Fair

Over: LITTLE PLOVER RIVER

3.6M S JCT USH 10 TO E, Portage, WI

Built 1969 Load: 27.5 t ADT: 11,050

IH USH51-IH39NB

Fair

Over: PLOVER RIVER

0.2M N JCT USH 10 TO E, Portage, WI

Built 1969 Load: 27.5 t ADT: 16,850

IH USH51-IH39SB

Fair

Over: PLOVER RIVER

1.1M S JCT STH 66 TO E, Portage, WI

Built 1969 Load: 27.5 t ADT: 16,850

IH USH 51-IH 39 NB

Fair

Over: LITTLE EAU CLAIRE RIVER

0.7M N JCT CTH DB TO E, Portage, WI

Built 1972 Load: 27.5 t ADT: 11,400

LRD WASHINGTON ST

Fair

Over: TOMORROW RIVER

0.1M E JCT CTH A, Portage, WI

Built 1938 Load: 27.5 t ADT: 99

CTH F

Fair

Over: S FK FLAMBEAU RIVER

7.4M S JCT STH 70, Price, WI

Built 1976 Load: 27.5 t ADT: 246

STH 38-NORTHWESTER

Fair

Over: ROOT RIVER

2.7M N JCT STH 32, Racine, WI

Built 1958 Load: 27.5 t ADT: 26,500

LRD BRIDGE DR

Fair

Over: FOX RIVER

1.9M W JCT STH 164, Racine, WI

Built 1982 Load: 27.5 t ADT: 680

STH 130

Fair

Over: BEAR CREEK

0.4M N JCT CTH B TO E, Richland, WI

Built 1956 Load: 27.5 t ADT: 760

USH 14

Fair

Over: E BR MILL CREEK

0.1M E JCT CTH Z, Richland, WI

Built 1961 Load: 27.5 t ADT: 2,900

CTH JJ

Fair

Over: BEAR CREEK

0.3M W JCT STH 130, Richland, WI

Built 1981 Load: 27.5 t ADT: 750

CTH E

Fair

Over: MILL CREEK

2.5M E JCT CTH G, Richland, WI

Built 1985 Load: 27.5 t ADT: 327

LRD DOOLITTLE RD (

Fair

Over: WILLOW CREEK

0.1M E JCT STH 58, Richland, WI

Built 1970 Load: 27.5 t ADT: 20

CTH M

Fair

Over: YAHARA RIVER

0.1M E JCT CTH H, Rock, WI

Built 1950 Load: 27.5 t ADT: 1,280

STH 11

Fair

Over: BASS CREEK

3.5M E JCT STH 213, Rock, WI

Built 1958 Load: 27.5 t ADT: 4,400

CTH D

Fair

Over: FISHER CREEK

1.6M W JCT USH 51, Rock, WI

Built 1962 Load: 27.5 t ADT: 2,235

LRD TIGHE RD

Fair

Over: LITTLE TURTLE CREEK

2.9M E JCT STH 140, Rock, WI

Built 1976 Load: 27.5 t ADT: 105

LRD NAIL CREEK RD

Fair

Over: NAIL CREEK

4.7M N JCT CTH J-82, Rusk, WI

Built 1985 Load: 27.5 t ADT: 194

CTH H

Fair

Over: CLEAR CREEK

2.7M W JCT STH 40--47, Rusk, WI

Built 1969 Load: 27.5 t ADT: 206

STH 78-STH 113

Fair

Over: GALLUS SLOUGH

0.5M N JCT STH 113 TO N, Sauk, WI

Built 1975 Load: 27.5 t ADT: 2,000

LRD HIGHLOW RD

Fair

Over: NARROWS CREEK

0.2M S JCT STH 154, Sauk, WI

Built 1985 Load: 27.5 t ADT: 68

STH 58-CENTER ST

Fair

Over: BARABOO RIVER

4.2M N JCT CTH G TO E, Sauk, WI

Built 1941 Load: 27.5 t ADT: 1,400

STH 58

Fair

Over: BR BARABOO RIVER

0.9M N JCT STH 33 TO W, Sauk, WI

Built 1932 Load: 27.5 t ADT: 1,400

LRD MILL RD

Fair

Over: HONEY CREEK

0.2M N JCT CTH B, Sauk, WI

Built 1959 Load: 27.5 t ADT: 314

LRD IRR (RIGHT-OF-

Fair

Over: COURDERAY RIVER

0.6M W JCT STH 27, Sawyer, WI

Built 1961 Load: 27.5 t ADT: 58

Showing 4,651-4,700 of 14,851 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.