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

LRD MILL CREEK RD

Fair

Over: MINERAL POINT BRANCH

0.9M E JCT CTH Q, Iowa, WI

Built 1983 Load: 27.5 t ADT: 130

USH 2 WB

Fair

Over: MONTREAL RIVER

MICHIGAN STATE LINE, Iron, WI

Built 1961 Load: 27.5 t ADT: 2,600

CTH K

Fair

Over: MORRISON CREEK

4.1M N JCT STH 54, Jackson, WI

Built 1978 Load: 27.5 t ADT: 1,100

LRD LINCOLN ROAD

Fair

Over: TREMPEALEAU RIVER

0.2M S JCT STH 95, Jackson, WI

Built 1978 Load: 27.5 t ADT: 47

STH 19

Fair

Over: CRAWFISH RIVER

0.2M E JCT CTH G, Jefferson, WI

Built 1976 Load: 27.5 t ADT: 3,600

LRD SKI-SLIDE RD

Fair

Over: ASHIPPUN RIVER

0.5M S JCT CTH CW, Jefferson, WI

Built 1988 Load: 27.5 t ADT: 400

CTH N

Fair

Over: BARK RIVER

0.8M N JCT CTH M, Jefferson, WI

Built 1939 Load: 27.5 t ADT: 3,500

LRD FRIENDSHIP RD

Fair

Over: YELLOW RIVER OVERFLOW

0.1M S JCT STH 21, Juneau, WI

Built 1930 Load: 27.5 t ADT: 13

CTH AB

Fair

Over: RED RIVER

2.2M N JCT CTH S, Kewaunee, WI

Built 1961 Load: 27.5 t ADT: 305

LRD RENDEZVOUS RD

Fair

Over: SCHOOL CREEK

0.2M N JCT STH 54, Kewaunee, WI

Built 1984 Load: 27.5 t ADT: 145

STH 162

Fair

Over: DUTCH CREEK

1.5M N JCT STH 33 TO E, La Crosse, WI

Built 1952 Load: 27.5 t ADT: 1,600

CTH B / CLINTON ST

Fair

Over: BLACK RIVER

0.1M W JCT USH 53, La Crosse, WI

Built 1981 Load: 27.5 t ADT: 7,300

CTH E

Fair

Over: BURNS CREEK

0.5M S JCT STH 162, La Crosse, WI

Built 1978 Load: 27.5 t ADT: 394

USH 53

Fair

Over: BLACK RIVER

0.8M N JCT CTH T (C), La Crosse, WI

Built 1982 Load: 27.5 t ADT: 7,900

STH 16 WB

Fair

Over: CMSTP&P RR

0.4M W JCT STH 157, La Crosse, WI

Built 1986 Load: 27.5 t ADT: 17,500

CTH K

Fair

Over: COPPER CREEK

6.5M E JCT STH 23, Lafayette, WI

Built 1985 Load: 27.5 t ADT: 373

CTH I

Fair

Over: BR MADDEN BRANCH

0.8M S JCT STH 81, Lafayette, WI

Built 1976 Load: 27.5 t ADT: 282

CTH O

Fair

Over: WOOD BRANCH

0.9M S JCT CTH Z, Lafayette, WI

Built 1966 Load: 27.5 t ADT: 176

LRD APPLE BRANCH R

Fair

Over: APPLE BRANCH

2.2M E JCT STH 81, Lafayette, WI

Built 1964 Load: 27.5 t ADT: 23

LRD ROLLER COASTER

Fair

Over: PECATONICA RIVER

1.7M W JCT STH 81, Lafayette, WI

Built 1980 Load: 27.5 t ADT: 88

CTH F

Fair

Over: MCCLINTOCK CREEK

0.1M W JCT CTH N TO S, Lafayette, WI

Built 1936 Load: 27.5 t ADT: 352

LRD PIER ST

Fair

Over: PRAIRIE RIVER

0.5M N JCT STH 64, Lincoln, WI

Built 1969 Load: 27.5 t ADT: 2,800

LRD DUGINSKI RD

Fair

Over: PRAIRIE RIVER

1.0M N JCT STH 64, Lincoln, WI

Built 1976 Load: 27.5 t ADT: 617

CTH E

Fair

Over: WISCONSIN RIVER 40

0.1M W JCT STH 107, Lincoln, WI

Built 1978 Load: 27.5 t ADT: 222

CTH C

Fair

Over: MEADOW CREEK

0.3M E. JCT USH 51, Lincoln, WI

Built 1969 Load: 27.5 t ADT: 262

CTH X

Fair

Over: PINE RIVER

1.0M N JCT STH 64, Lincoln, WI

Built 1973 Load: 27.5 t ADT: 420

USH 151

Fair

Over: SILVER CREEK

4.5M N JCT CTH S, Manitowoc, WI

Built 1977 Load: 27.5 t ADT: 6,200

IH 43 SB-USH 10 EB

Fair

Over: MANITOWOC RIVER

2.0M S JCT STH 310, Manitowoc, WI

Built 1979 Load: 27.5 t ADT: 11,100

IH 43 NB-USH 10 WB

Fair

Over: MANITOWOC RIVER

4.1M N JCT USH 151, Manitowoc, WI

Built 1979 Load: 27.5 t ADT: 11,100

LRD COUNTY LINE RD

Fair

Over: MEEME RIVER

1.2M E JCT STH 42, Manitowoc, WI

Built 1963 Load: 27.5 t ADT: 205

USH STH 52 WB - US

Fair

Over: WISCONSIN RIVER 32

0.6M N JCT STH 52 TO E, Marathon, WI

Built 1983 Load: 27.5 t ADT: 27,160

LRD BUFFALO RIDGE

Fair

Over: TRAPPE RIVER

1.9M E JCT CTH WW, Marathon, WI

Built 1960 Load: 27.5 t ADT: 45

LRD TRAPPE RIVER R

Fair

Over: TRAPPE RIVER

1.3M W JCT CTH J, Marathon, WI

Built 1963 Load: 27.5 t ADT: 85

LRD DRAPER RD

Fair

Over: W BR BIG EAU PLEINE RIVE

2.0M E JCT STH 13, Marathon, WI

Built 1962 Load: 27.5 t ADT: 90

LRD GIERL RD

Fair

Over: EAU PLEINE RIVER

0.4M N JCT STH 29, Marathon, WI

Built 1965 Load: 27.5 t ADT: 30

LRD SOUTH RD

Fair

Over: BR BIG RIB RIVER

0.9M E JCT CTH B, Marathon, WI

Built 1938 Load: 27.5 t ADT: 22

LRD SODA CREEK RD

Fair

Over: SODA CREEK

0.2M W JCT CTH S, Marathon, WI

Built 1973 Load: 27.5 t ADT: 90

LRD BLUEBERRY RD

Fair

Over: HAMAN CREEK

1.2M W JCT STH 97, Marathon, WI

Built 1974 Load: 27.5 t ADT: 45

LRD STAADT RD

Fair

Over: NOISY CREEK

0.4M N JCT STH 153, Marathon, WI

Built 1973 Load: 27.5 t ADT: 58

LRD EAU PLEINE ST

Fair

Over: DENNY CREEK

1.6M E JCT CTH M, Marathon, WI

Built 1973 Load: 27.5 t ADT: 45

LRD FOLZ RD

Fair

Over: WILD CREEK

0.9M S JCT CTH C, Marathon, WI

Built 1975 Load: 27.5 t ADT: 50

CTH Q

Fair

Over: LITTLE SANDY CREEK

0.7M S JCT CTH Z, Marathon, WI

Built 1972 Load: 27.5 t ADT: 600

USH 8

Fair

Over: N BR PIKE RIVER

7.8M E JCT CTH H, Marinette, WI

Built 1931 Load: 27.5 t ADT: 1,100

LRD SMEESTER SCHOO

Fair

Over: N BR PIKE RIVER

0.4M W JCT USH 141, Marinette, WI

Built 1974 Load: 27.5 t ADT: 100

CTH IRR (CTH M)

Fair

Over: WOLF RIVER

0.2M W JCT STH 55, Menominee, WI

Built 1979 Load: 27.5 t ADT: 117

LRD SILVER SPRING

Fair

Over: LITTLE MENOMONEE RIVER

0.5M E JCT STH 100, Milwaukee, WI

Built 1964 Load: 27.5 t ADT: 31,300

LRD SILVER SPRING

Fair

Over: LITTLE MENOMONEE RIVER

0.5M E JCT STH 100, Milwaukee, WI

Built 1964 Load: 27.5 t ADT: 15,650

IH 94 WB-IH 43 NB

Fair

Over: BURNHAMS CANAL

5.4M N JCT IH 894, Milwaukee, WI

Built 1968 Load: 27.5 t ADT: 78,000

STH 100-MAYFAIR RD

Fair

Over: CMSTPP RR

0.9 MI N JCT USH 18, Milwaukee, WI

Built 1972 Load: 27.5 t ADT: 29,200

STH 100 EB-BROWN D

Fair

Over: MILWAUKEE RIVER

0.2M E JCT STH 57, Milwaukee, WI

Built 1979 Load: 27.5 t ADT: 12,450

Showing 4,601-4,650 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.