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

IH USH51-IH39SB

Fair

Over: BUENA VISTA CREEK

3.2M S JCT STH 54 TO E, Portage, WI

Built 1978 Load: 29.2 t ADT: 14,600

CTH D

Fair

Over: LITTLE ELK RIVER

2.2M W JCT CTH H, Price, WI

Built 1950 Load: 29.2 t ADT: 472

CTH N

Fair

Over: N FK JUMP RIVER

7.1M N JCT CTH D, Price, WI

Built 1980 Load: 29.2 t ADT: 144

CTH N

Fair

Over: S FK JUMP RIVER

4.8M N JCT CTH D, Price, WI

Built 1989 Load: 29.2 t ADT: 144

STH 36/STH 83 SB

Fair

Over: WIND LAKE DRAINAGE CANAL

0.4M N JCT CTH D, Racine, WI

Built 1967 Load: 29.2 t ADT: 6,800

CTH G

Fair

Over: BR CAMP CREEK

0.3M S JCT STH 56, Richland, WI

Built 1962 Load: 29.2 t ADT: 239

CTH Z

Fair

Over: BR FANCY CREEK

1.3M S JCT STH 56, Richland, WI

Built 1964 Load: 29.2 t ADT: 110

STH 131

Fair

Over: KICKAPOO RIVER

3.4M N JCT STH 56 TO E, Richland, WI

Built 1975 Load: 29.2 t ADT: 1,100

STH 80

Fair

Over: PINE RIVER

1.5M N JCT CTH I, Richland, WI

Built 1976 Load: 29.2 t ADT: 1,300

LRD WILLOW CREEK D

Fair

Over: WILLOW CREEK

0.3M W JCT STH 58, Richland, WI

Built 1979 Load: 29.2 t ADT: 380

CTH H

Fair

Over: FANCY CREEK

0.2M N JCT STH 56, Richland, WI

Built 1983 Load: 29.2 t ADT: 60

CTH D

Fair

Over: W BR PINE RIVER

0.6M N JCT STH 80, Richland, WI

Built 1983 Load: 29.2 t ADT: 330

CTH Q

Fair

Over: MILL CREEK

0.1M E JCT CTH E, Richland, WI

Built 1986 Load: 29.2 t ADT: 320

CTH U

Fair

Over: ELK CREEK

2.4M N JCT CTH E, Richland, WI

Built 1950 Load: 29.2 t ADT: 163

LRD HATCHER LANE (

Fair

Over: PINE RIVER

0.1M N JCTCTH C, Richland, WI

Built 1982 Load: 29.2 t ADT: 20

CTH M

Fair

Over: ROCK RIVER

0.1M S JCT CTH F TO N, Rock, WI

Built 1956 Load: 29.2 t ADT: 1,413

LRD HANKE RD

Fair

Over: BLACKHAWK CREEK

0.6M N JCT CTH MM, Rock, WI

Built 1978 Load: 29.2 t ADT: 58

LRD EMERALD GROVE

Fair

Over: BR BLACKHAWK CREEK

0.1M S JCT USH 14, Rock, WI

Built 1993 Load: 29.2 t ADT: 376

CTH A

Fair

Over: STEVENS CREEK

3.2M W JCT STH 184, Rock, WI

Built 1984 Load: 29.2 t ADT: 960

LRD PARK AVE

Fair

Over: TURTLE CREEK

0.2M S JCT USH 51, Rock, WI

Built 1988 Load: 29.2 t ADT: 3,300

CTH D

Fair

Over: CHIPPEWA RIVER 20

2.0M E JCT CTH E, Rusk, WI

Built 1972 Load: 29.2 t ADT: 680

LRD THORNAPPLE RD

Fair

Over: THORNAPPLE RIVER

0.7M N JCT USH 8-105, Rusk, WI

Built 1976 Load: 29.2 t ADT: 108

LRD E TOWN LINE RD

Fair

Over: THORNAPPLE RIVER

0.6M E JCT STH 27 #60, Rusk, WI

Built 1992 Load: 29.2 t ADT: 48

STH 136-BROADWAY S

Fair

Over: BARABOO RIVER

0.1M E JCT STH 154, Sauk, WI

Built 1949 Load: 29.2 t ADT: 1,200

STH 58

Fair

Over: CAZENOVIA BRANCH

0.1M N JCT CTH G TO W, Sauk, WI

Built 1953 Load: 29.2 t ADT: 1,400

CTH N

Fair

Over: BEAR CREEK

0.1M E JCT STH 130, Sauk, WI

Built 1978 Load: 29.2 t ADT: 230

LRD BRANTON RD

Fair

Over: LITTLE BARABOO RIVER

.1 M W JCT STH 58, Sauk, WI

Built 1981 Load: 29.2 t ADT: 254

CTH H

Fair

Over: DELL CREEK

0.7M N JCT CTH P, Sauk, WI

Built 1971 Load: 29.2 t ADT: 4,000

LRD VOSEN LANE (DE

Fair

Over: CARR VALLEY BRANCH

0.15 MI W OF CTH G, Sauk, WI

Built 1990 Load: 29.2 t ADT: 15

LRD ADAMS ST

Fair

Over: DELL CREEK

0.2M E JCT USH 12, Sauk, WI

Built 1974 Load: 29.2 t ADT: 352

LRD DANE HILL RD

Fair

Over: LITTLE BEAR CREEK

0.2M S JCT CTH B, Sauk, WI

Built 1929 Load: 29.2 t ADT: 60

STH 77

Fair

Over: W FK CHIPPEWA RIVER

7.5M E JCT CTH S, Sawyer, WI

Built 1948 Load: 29.2 t ADT: 990

CTH W

Fair

Over: N FK FLAMBEAU RIVER

2.3M W JCT CTH M TO S, Sawyer, WI

Built 1983 Load: 29.2 t ADT: 379

STH 57

Fair

Over: BR MULLET RIVER

0.5M N JCT STH 23, Sheboygan, WI

Built 1955 Load: 29.2 t ADT: 11,500

IH 43 SB

Fair

Over: PIGEON RIVER

1.3M S JCT STH 42, Sheboygan, WI

Built 1965 Load: 29.2 t ADT: 16,750

IH 43 NB

Fair

Over: SHEBOYGAN RIVER

1.8M N JCT STH 28 TO E, Sheboygan, WI

Built 1967 Load: 29.2 t ADT: 15,700

LRD RIO RD

Fair

Over: SHEBOYGAN RIVER

0.4M N JCT CTH O, Sheboygan, WI

Built 1984 Load: 29.2 t ADT: 117

LRD HICKORY DRIVE

Fair

Over: SILVER CREEK

0.5M N JCT CTH K, Sheboygan, WI

Built 1995 Load: 29.2 t ADT: 55

CTH NN

Fair

Over: N BR MILWAUKEE RIVER

0.1M N JCT CTH F TO E, Sheboygan, WI

Built 1932 Load: 29.2 t ADT: 205

CTH K

Fair

Over: WILLOW RIVER

1.3M E JCT STH 65, St. Croix, WI

Built 1964 Load: 29.2 t ADT: 3,000

STH 65

Fair

Over: BR KINNICKINNIC RIVER

0.1M N JCT STH 35, St. Croix, WI

Built 1967 Load: 29.2 t ADT: 4,600

LRD RUSTIC RD #3

Fair

Over: BEAVER CREEK

1.3M N JCT CTH E, St. Croix, WI

Built 1977 Load: 29.2 t ADT: 269

LRD BRIDGE DR

Fair

Over: JUMP RIVER

0.2M S JCT STH 73, Taylor, WI

Built 1979 Load: 29.2 t ADT: 232

CTH A

Fair

Over: PINE CREEK

1.4M E JCT CTH E, Taylor, WI

Built 1984 Load: 29.2 t ADT: 717

USH 53

Fair

Over: N FK BEAVER CREEK

0.1M N JCT CTH C TO E, Trempealeau, WI

Built 1966 Load: 29.2 t ADT: 3,700

CTH D 1ST ST

Fair

Over: BEAVER CREEK

0.1M E JCT USH 53, Trempealeau, WI

Built 1976 Load: 29.2 t ADT: 1,627

LRD WADE RD

Fair

Over: TREMPEALEAU RIVER

0.2M E JCT USH 53, Trempealeau, WI

Built 1977 Load: 29.2 t ADT: 117

LRD DAGGETT COULEE

Fair

Over: PIGEON CREEK

0.2M W JCT USH 53, Trempealeau, WI

Built 1981 Load: 29.2 t ADT: 94

LRD SOUTH RIVER RD

Fair

Over: TREMPEALEAU RIVER

0.3M S JCT STH 95, Trempealeau, WI

Built 1982 Load: 29.2 t ADT: 117

LRD SIMONSON ROAD

Fair

Over: PIGEON CREEK

0.1M W JCT USH 53, Trempealeau, WI

Built 1986 Load: 29.2 t ADT: 20

Showing 4,901-4,950 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.