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 41/43/894

Fair

Over: HONEY CREEK

2.9M N JCT USH 45 TO S, Milwaukee, WI

Built 1966 Load: 32.4 t ADT: 128,000

STH 59-GREENFIELD

Fair

Over: UNDERWOOD CREEK

1.1M E JCT CTH MM, Milwaukee, WI

Built 1972 Load: 32.4 t ADT: 17,000

IH RAMP, IH-794 WB

Fair

Over: PARKING LOT

1.3 MI E JCT IH-43, Milwaukee, WI

Built 1975 Load: 32.4 t ADT: 16,150

IH 794 EB-LAKE FRE

Fair

Over: LAND

1.6 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 32.4 t ADT: 25,200

IH 794 EB - LAKE F

Fair

Over: LAND

1.4 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 32.4 t ADT: 25,200

IH 794 EB-LAKE FRE

Fair

Over: LAND

2.1 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 32.4 t ADT: 25,200

IH 794 EB-LAKE FRE

Fair

Over: DOCK RR

2.2 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 32.4 t ADT: 25,200

IH 794 EB-LAKE FRE

Fair

Over: DOCK RR

2.3 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 32.4 t ADT: 25,200

STH 100-BROWN DEER

Fair

Over: BEAVER CREEK

0.5M N JCT STH 181 TO N, Milwaukee, WI

Built 1969 Load: 32.4 t ADT: 27,900

STH 100-BROWN DEER

Fair

Over: BEAVER CREEK

0.9M E JCT STH 181, Milwaukee, WI

Built 1969 Load: 32.4 t ADT: 27,900

LRD W LAYTON AVE

Fair

Over: BR KINNICKINNIC RIVER

0.2M W JCT STH 38, Milwaukee, WI

Built 1969 Load: 32.4 t ADT: 21,600

STH 38-HOWELL AVE

Fair

Over: BR KINNICKINNIC RIVER

1.8M N JCT CTH ZZ, Milwaukee, WI

Built 1953 Load: 32.4 t ADT: 20,200

STH 100 NB-BROWN D

Fair

Over: CNW RR

1.2M E JCT STH 145, Milwaukee, WI

Built 1976 Load: 32.4 t ADT: 9,300

STH 100-BROWN DEER

Fair

Over: LITTLE MENOMONEE RIVER

0.4M N JCT CTH F TO N, Milwaukee, WI

Built 1976 Load: 32.4 t ADT: 22,100

CTH S W MILL RD

Fair

Over: LINCOLN CREEK

0.4M W JCT CTH G, Milwaukee, WI

Built 1978 Load: 32.4 t ADT: 19,500

CTH S W MILL RD

Fair

Over: LYNX BR LIT MENOMONEE R

0.4M E JCT STH 81, Milwaukee, WI

Built 1986 Load: 32.4 t ADT: 14,400

CTH ZZ E COLLEGE

Fair

Over: CMSTPP RR

0.7M W JCT STH 38, Milwaukee, WI

Built 1987 Load: 32.4 t ADT: 8,900

CTH ZZ W COLLEGE A

Fair

Over: CMSTPP RR

0.7M W JCT STH 38, Milwaukee, WI

Built 1987 Load: 32.4 t ADT: 8,900

LRD DREXEL AVE

Fair

Over: OAK CREEK

0.4M W JCT STH 38, Milwaukee, WI

Built 1981 Load: 32.4 t ADT: 29,500

STH 181

Fair

Over: MENOMONEE RIVER

1.0M N JCT USH 18, Milwaukee, WI

Built 1981 Load: 32.4 t ADT: 11,900

STH 100 SB/RYAN RD

Fair

Over: CNW RR

1.6M E JCT STH 32, Milwaukee, WI

Built 1985 Load: 32.4 t ADT: 7,100

LRD N 32ND STREET

Fair

Over: LINCOLN CREEK

0.9M N JCT STH 190, Milwaukee, WI

Built 1985 Load: 32.4 t ADT: 3,100

LRD N WATER ST

Fair

Over: MILWAUKEE RIVER

0.1M N JCT STH 32, Milwaukee, WI

Built 1987 Load: 32.4 t ADT: 15,778

LRD W VLIET ST

Fair

Over: CANADIAN PACIFIC RR

0.9M W JCT STH 57, Milwaukee, WI

Built 1988 Load: 32.4 t ADT: 8,600

STH 32-KINNICKINNI

Fair

Over: KINNICKINIC RIVER

10.0M N JCT STH 100, Milwaukee, WI

Built 1999 Load: 32.4 t ADT: 10,490

LRD S 124TH ST

Fair

Over: ROOT RIVER

1.5M S JCT STH 59, Milwaukee, WI

Built 1991 Load: 32.4 t ADT: 7,500

LRD OAK CREEK PARK

Fair

Over: OAK CREEK

0.1M W JCT STH 32, Milwaukee, WI

Built 1992 Load: 32.4 t ADT: 1,762

LRD N EMMBER LA

Fair

Over: MENOMONEE RIVER

0.3M S JCT IH 94, Milwaukee, WI

Built 2000 Load: 32.4 t ADT: 2,911

LRD N 124TH ST

Fair

Over: MENOMONEE RIVER

0.7M N JCT CTH EE, Milwaukee, WI

Built 1994 Load: 32.4 t ADT: 3,525

LRD BENDER RD

Fair

Over: MILWAUKEE RIVER

0.3M E JCT STH 57, Milwaukee, WI

Built 1993 Load: 32.4 t ADT: 7,700

LRD PENNSYLVANIA A

Fair

Over: EDGERTON CHANNEL

.1 MI. N. OF STH 794 TO W, Milwaukee, WI

Built 1996 Load: 32.4 t ADT: 24,000

LRD S 36TH ST

Fair

Over: W BR OF E BR ROOT RIVER

0.25M N JCT CTH "ZZ", Milwaukee, WI

Built 1974 Load: 32.4 t ADT: 535

LRD INDIAN CREEK P

Fair

Over: INDIAN CR

0.4M S JCT STH32, Milwaukee, WI

Built 2008 Load: 32.4 t ADT: 1,070

LRD MILL RD

Fair

Over: OAK CREEK

0.5M S JCT STH 32, Milwaukee, WI

Built 1931 Load: 32.4 t ADT: 5,200

LRD NORTH 35TH STR

Fair

Over: MUD CREEK

0.1M SOUTH STH 190, Milwaukee, WI

Built 1930 Load: 32.4 t ADT: 10,100

LRD S 20TH ST

Fair

Over: BR KINNICKINNIC RIVER

0.5M N JCT IH 43-894, Milwaukee, WI

Built 1958 Load: 32.4 t ADT: 6,600

LRD N 60TH ST

Fair

Over: LINCOLN CREEK

1.2M N JCT STH 145, Milwaukee, WI

Built 1958 Load: 32.4 t ADT: 18,935

LRD S 13TH ST

Fair

Over: OAK CREEK

0.1M N JCT CTH ZZ, Milwaukee, WI

Built 1970 Load: 32.4 t ADT: 8,600

LRD S 60TH ST

Fair

Over: HONEY CREEK

0.5M S JCT STH 24, Milwaukee, WI

Built 1972 Load: 32.4 t ADT: 14,000

LRD W HOWARD AVE

Fair

Over: HONEY CREEK

0.1M W JCT STH 24, Milwaukee, WI

Built 1972 Load: 32.4 t ADT: 5,000

LRD N 60TH ST & W

Fair

Over: BR LINCOLN CREEK

0.1M N JCT STH 145, Milwaukee, WI

Built 1954 Load: 32.4 t ADT: 13,800

LRD HONEY CREEK DR

Fair

Over: HONEY CREEK

0.1M S JCT USH 18, Milwaukee, WI

Built 1933 Load: 32.4 t ADT: 7,380

LRD PLAINFIELD AVE

Fair

Over: BR KINNICKINNIC RIVER

0.7M E JCT STH 241, Milwaukee, WI

Built 1967 Load: 32.4 t ADT: 599

LRD S 16TH ST

Fair

Over: KINNICKINNIC RIVER

1.7M S JCT STH 59, Milwaukee, WI

Built 1981 Load: 32.4 t ADT: 8,554

CTH PP W GOOD HOP

Fair

Over: LINCOLN CREEK

1.5M E JCT STH 181, Milwaukee, WI

Built 1972 Load: 32.4 t ADT: 41,013

LRD RANGE LINE RD

Fair

Over: MILWAUKEE RIVER

0.8M N JCT STH 57, Milwaukee, WI

Built 1935 Load: 32.4 t ADT: 1,400

LRD N BURBANK AVE

Fair

Over: BR LITTLE MENOMONEE R

0.5M W JCT STH 181, Milwaukee, WI

Built 1982 Load: 32.4 t ADT: 2,800

LRD W HASTINGS STR

Fair

Over: BR LITTLE MENOMONEE R

0.7M W JCT STH 181, Milwaukee, WI

Built 1981 Load: 32.4 t ADT: 488

LRD PORTLAND AVE

Fair

Over: HONEY CREEK

0.1M E JCT STH 181, Milwaukee, WI

Built 1933 Load: 32.4 t ADT: 4,700

LRD S 6TH ST

Fair

Over: N BR OAK CREEK

0.1M N JCT CTH BB, Milwaukee, WI

Built 1982 Load: 32.4 t ADT: 116

Showing 5,551-5,600 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.