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%.

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.

All Bridges in Wisconsin

USH IRR (USH 2)

Fair

Over: BAD RIVER

0.5M E JCT OLD ODANAH RD, Ashland, WI

Built 1960 Load: 32.4 t ADT: 4,800

USH IRR (USH 2)

Fair

Over: DENOMIE CREEK

2.5M E JCT CTH A TO S, Ashland, WI

Built 1980 Load: 32.4 t ADT: 5,000

USH 53 NB

Fair

Over: BR BEAR CREEK

2.8M N JCT STH 48 TO E, Barron, WI

Built 1976 Load: 32.4 t ADT: 5,150

STH 48

Fair

Over: HICKEY CREEK

7.3M E JCT USH 63 TO N, Barron, WI

Built 1985 Load: 32.4 t ADT: 4,800

LRD LA SALLE AVE

Fair

Over: YELLOW RIVER

0.1M S JCT USH 8, Barron, WI

Built 1999 Load: 32.4 t ADT: 2,009

CTH O

Fair

Over: RED CEDAR RIVER

1.0M W JCT CTH SS, Barron, WI

Built 1999 Load: 32.4 t ADT: 11,664

CTH D

Fair

Over: TURTLE CREEK

0.8M W JCT CTH P, Barron, WI

Built 2000 Load: 32.4 t ADT: 220

LRD 26TH AVE

Fair

Over: BRILL RIVER

1.5M E JCT CTH M, Barron, WI

Built 1960 Load: 32.4 t ADT: 94

LRD 18TH ST

Fair

Over: LITTLE BEAR CREEK

0.3M N JCT CTH B, Barron, WI

Built 1964 Load: 32.4 t ADT: 88

LRD 5 1/2 STREET

Fair

Over: LIGHTNING CREEK

0.6M W JCT CTH P, Barron, WI

Built 1981 Load: 32.4 t ADT: 705

LRD BARRON-DUNN AV

Fair

Over: BR HAY RIVER

0.8M E JCT CTH K, Barron, WI

Built 1981 Load: 32.4 t ADT: 47

CTH AA

Fair

Over: BR LOWER PINE CREEK

0.1M W JCT STH 25, Barron, WI

Built 1984 Load: 32.4 t ADT: 457

LRD 30TH STREET

Fair

Over: MOOSE EAR CREEK

1.3M N JCT USH 8, Barron, WI

Built 1950 Load: 32.4 t ADT: 47

LRD 27TH STREET

Fair

Over: GERMAN CREEK

0.8M N JCT USH 8, Barron, WI

Built 1959 Load: 32.4 t ADT: 47

USH 63

Fair

Over: SCHRAMM CREEK

2.7M N JCT CTH E TO W, Bayfield, WI

Built 1980 Load: 32.4 t ADT: 2,100

STH 13

Fair

Over: BONO CREEK

4.1M N JCT USH 2 TO W, Bayfield, WI

Built 1981 Load: 32.4 t ADT: 6,900

STH 13

Fair

Over: LITTLE WHITTLESEY CRK

0.8M N JCT USH 2 TO W, Bayfield, WI

Built 1981 Load: 32.4 t ADT: 7,500

STH 13

Fair

Over: JARDINE CREEK

3.3M N JCT CTH A, Bayfield, WI

Built 1987 Load: 32.4 t ADT: 1,400

USH STH 32 SB-USH

Fair

Over: DUTCHMANS CREEK

0.15 MI N OF CTH Y (PILGR, Brown, WI

Built 1952 Load: 32.4 t ADT: 10,500

CTH R

Fair

Over: BR NESHOTA RIVER

2.8M N JCT STH 96, Brown, WI

Built 1954 Load: 32.4 t ADT: 3,700

STH 54-MASON ST

Fair

Over: FOX RIVER

3.3M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 32.4 t ADT: 38,800

STH 172 WB

Fair

Over: BR DUTCHMANS CREEK

0.1M W JCT USH 41, Brown, WI

Built 1974 Load: 32.4 t ADT: 28,400

IH RAMP STH 172 E-

Fair

Over: BR DUTCHMANS CREEK

1.3M E JCT CTH GH, Brown, WI

Built 1974 Load: 32.4 t ADT: 2,900

STH 172 WB

Fair

Over: DUTCHMANS CREEK

1.5M W JCT STH 57, Brown, WI

Built 1973 Load: 32.4 t ADT: 29,450

IH 43

Fair

Over: FOX RIVER

3.2M N JCT STH 54 TO W, Brown, WI

Built 1979 Load: 32.4 t ADT: 43,300

IH 41

Fair

Over: ASHWAUBENON CREEK

0.6 MI N OF CTH S, Brown, WI

Built 1988 Load: 32.4 t ADT: 56,400

LRD CTH F (SCHEURI

Fair

Over: ASHWAUBENON CREEK

0.1M N JCT USH 41, Brown, WI

Built 1986 Load: 32.4 t ADT: 23,900

IH 43

Fair

Over: BOWER CREEK

2.9M N JCT USH 141 TO N, Brown, WI

Built 1980 Load: 32.4 t ADT: 48,600

IH 43

Fair

Over: SORENSONS CREEK

3.4M N JCT USH 141 TO N, Brown, WI

Built 1979 Load: 32.4 t ADT: 48,600

LRD BAYPORT DR (AT

Fair

Over: CN/WC RR(OLD CNW RR)

0.2M S JCT IH 43, Brown, WI

Built 1978 Load: 32.4 t ADT: 11,692

STH 29-STH 32

Fair

Over: S BR SUAMICO RIVER

1.0M E JCT STH 32, Brown, WI

Built 1988 Load: 32.4 t ADT: 22,900

IH 43

Fair

Over: BR NESHOTA RIVER

4.1M N JCT STH 96 TO E, Brown, WI

Built 1979 Load: 32.4 t ADT: 22,400

IH 43

Fair

Over: BIG CREEK

0.7M N JCT USH 141 (S), Brown, WI

Built 1980 Load: 32.4 t ADT: 26,300

LRD ALLOUEZ AVE

Fair

Over: SPRING CREEK

0.1M W JCT IH 43, Brown, WI

Built 1980 Load: 32.4 t ADT: 7,600

STH 29

Fair

Over: W BR SUAMICO RIVER

0.4 MI E OF CO LINE, Brown, WI

Built 1988 Load: 32.4 t ADT: 15,900

LRD WAYSIDE ROAD

Fair

Over: PLUM CREEK

0.8M W JCT STH 57, Brown, WI

Built 1993 Load: 32.4 t ADT: 94

LRD SWAN ROAD

Fair

Over: BR EAST RIVER

0.4M S JCT CTH G, Brown, WI

Built 1995 Load: 32.4 t ADT: 110

CTH EB

Fair

Over: DUTCHMAN CREEK

0.1M N JCT CTH"AAA", Brown, WI

Built 1999 Load: 32.4 t ADT: 8,200

CTH JJ / VERLIN RO

Fair

Over: WILLOW CREEK

0.7M E OF CTH V, Brown, WI

Built 2003 Load: 32.4 t ADT: 7,200

LRD GUNS STREET

Fair

Over: WILLOW CREEK

0.2M SOUTH OF JCT CTH JJ, Brown, WI

Built 2004 Load: 32.4 t ADT: 1,500

LRD HALF CROWN RUN

Fair

Over: UNNAMED CREEK

0.1 MI N OF DOLLAR ROAD, Brown, WI

Built 2001 Load: 32.4 t ADT: 99

STH 29

Fair

Over: BEAVER DAM CR

0.1 MI W OF USH 41, Brown, WI

Built 2012 Load: 32.4 t ADT: 21,900

LRD BROOKSIDE RD

Fair

Over: BR SUAMICO RIVER

0.7M N JCT CTH U, Brown, WI

Built 1940 Load: 32.4 t ADT: 257

LRD LEDGEVIEW RD

Fair

Over: EAST RIVER

0.3M W JCT CTH X, Brown, WI

Built 1978 Load: 32.4 t ADT: 58

LRD HYDUKE LANE (D

Fair

Over: BRANCH DEVILS RIVER

500 FT N OF COOPERSTOWN R, Brown, WI

Built 1960 Load: 32.4 t ADT: 20

STH 37-ALMA RD

Fair

Over: HARVEY CREEK

2.2M N JCT STH 88, Buffalo, WI

Built 1967 Load: 32.4 t ADT: 2,100

STH 95

Fair

Over: BR TREMPEALEAU RIVER

2.3M E JCT CTH E, Buffalo, WI

Built 1982 Load: 32.4 t ADT: 1,300

STH 121

Fair

Over: THREE MILE CREEK

2.5M E JCT STH 88, Buffalo, WI

Built 1986 Load: 32.4 t ADT: 540

CTH HH

Fair

Over: WASTE VALLEY CREEK

0.1M E JCT CTH H, Buffalo, WI

Built 1982 Load: 32.4 t ADT: 444

CTH BB

Fair

Over: ELK CREEK

4.2M N JCT STH 121, Buffalo, WI

Built 1986 Load: 32.4 t ADT: 86

Showing 5,201-5,250 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 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.