Fond du Lac County, WI

256 public highway bridges

Fond du Lac County Bridge Snapshot

Fond du Lac County, Wisconsin contains 256 public highway bridges in the FHWA National Bridge Inventory. Roughly 39.1% are rated “Good,” 32% “Fair,” 10.2% “Poor,” and 10.2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in WI are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

256

Total Bridges

39.1%

Good

10.2%

Poor

10.2%

Structurally Deficient

Condition Distribution

Good

39.1% (100)

Fair

32% (82)

Poor

10.2% (26)

SD

10.2% (26)

All Bridges (256)

Sort:

USH 41 NB

Over: CTH F

0.5M E JCT STH 175, Fond du Lac, WI

Built 1953 ADT: 430

IH 41 SB

Over: CTH F

0.5M E JCT STH 175, Fond du Lac, WI

Built 1957 ADT: 430

STH 23

Over: LRD BROOKE STREET

CITY OF FOND DU LAC, Fond du Lac, WI

Built 2001 ADT: 99

CTH OOO (W. SCOTT

Over: IH 41

0.7M N JCT STH 23 TO E, Fond du Lac, WI

Built 1973 ADT: 44,700

CTH OO (WINNEBAGO

Over: IH 41

2.0M N JCT STH 23 TO E, Fond du Lac, WI

Built 1973 ADT: 43,100

LRD TOWN LINE RD

Over: IH 41

3.6M N JCT STH 23 TO E, Fond du Lac, WI

Built 1973 ADT: 43,100

USH 151 NB ON-RAMP

Over: USH 151

0.7M N JCT STH 49, Fond du Lac, WI

Built 2003 ADT: 16,800

LRD OAK CENTER ROA

Over: USH 151

0.8M N JCT STH 49, Fond du Lac, WI

Built 2003 ADT: 16,800

CTH Y CAMPBELL R

Over: IH 41

1.4M N JCT STH 49, Fond du Lac, WI

Built 1995 ADT: 31,000

CTH B

Over: IH 41

2.4M N JCT CTH F, Fond du Lac, WI

Built 1996 ADT: 38,700

LRD LOST ARROW RD

Over: IH 41

1.6M N JCT CTH B, Fond du Lac, WI

Built 1996 ADT: 38,700

LRD SOUTH MAIN STR

Over: IH 41

3.7M N JCT CTH B, Fond du Lac, WI

Built 2005 ADT: 42,000

CN RAILROAD

Over: IH 41

AT INTERSECTION, Fond du Lac, WI

Built 2009 ADT: 37,500

LRD HICKORY ST.

Over: IH 41

0.9M N JCT STH 175 TO N, Fond du Lac, WI

Built 2009 ADT: 42,000

CTH D (MILITARY RD

Over: IH 41

151, Fond du Lac, WI

Built 2005 ADT: 42,900

USH 41 NB

Over: CTH N

TOWN OF ELDORADO, Fond du Lac, WI

Built 1999 ADT: 740

IH 41 SB

Over: CTH N

TOWN OF ELDORADO, Fond du Lac, WI

Built 1999 ADT: 740

LRD LINCOLN ROAD

Over: IH 41 NB

1.2M N JCT CTH N, Fond du Lac, WI

Built 2001 ADT: 42,900

USH 151 NB

Over: IH 41

XING OF USH 151 NB, Fond du Lac, WI

Built 2005 ADT: 37,500

USH 151 SB

Over: IH 41

151, Fond du Lac, WI

Built 2004 ADT: 3,750

USH 151 NB

Over: STH 26

AT USH 151, Fond du Lac, WI

Built 2003 ADT: 350

USH 151 SB

Over: STH 26

151, Fond du Lac, WI

Built 2003 ADT: 350

STH USH 151 NB OFF

Over: STH 26

26, Fond du Lac, WI

Built 2003 ADT: 350

USH 151 NB

Over: STH USH 151 NB TO STH 26

AT NB USH 151, Fond du Lac, WI

Built 2003 ADT: 4,700

USH 151 SB

Over: STH USH 151 NB TO STH 26

151, Fond du Lac, WI

Built 2003 ADT: 4,700

USH 151 SB OFF RAM

Over: STH USH 151 NB TO STH 26

2.0M S JCT CTH Y, Fond du Lac, WI

Built 2003 ADT: 4,700

USH 45

Over: USH 151

45, Fond du Lac, WI

Built 2004 ADT: 15,100

USH 151 NB

Over: STH 23

AT USH 151, Fond du Lac, WI

Built 2003 ADT: 21,600

USH 151 SB

Over: STH 23

AT USH 151, Fond du Lac, WI

Built 2003 ADT: 21,600

CTH Y

Over: USH 151

0.7M N JCT CTH TC, Fond du Lac, WI

Built 2005 ADT: 13,500

CTH D NB

Over: USH 151

CTH D, Fond du Lac, WI

Built 2006 ADT: 13,500

CTH D SB

Over: USH 151

CTH D, Fond du Lac, WI

Built 2006 ADT: 13,500

USH 151 NB

Over: LRD RIVER RD

AT INTERSECTION, Fond du Lac, WI

Built 2008 ADT: 550

USH 151 SB

Over: LRD RIVER RD

AT INTERSECTION, Fond du Lac, WI

Built 2008 ADT: 550

LRD HICKORY ST

Over: USH 151

AT INTERSECTION, Fond du Lac, WI

Built 2007 ADT: 10,900

CANADIAN NATIONAL

Over: USH 151

AT INTERSECTION, Fond du Lac, WI

Built 2007 ADT: 10,900

WILD GOOSE TRAIL

Over: IH 41

AT INTERSECTION, Fond du Lac, WI

Built 2009 ADT: 42,000

STH 23 EB

Over: IH 41

AT INTERSECTION, Fond du Lac, WI

Built 2008 ADT: 44,700

STH 23 WB

Over: IH 41

AT INTERSECTION, Fond du Lac, WI

Built 2008 ADT: 44,700

STH 23 WB

Over: CTH K

AT STH 23 WB, Fond du Lac, WI

Built 2022 ADT: 4,900

STH 23 EB

Over: CTH K

ROUGHLY .8 MILES EAST OF, Fond du Lac, WI

Built 2021 ADT: 4,900

CTH UU

Over: STH 23

AT CTH UU, Fond du Lac, WI

Built 2022 ADT: 9,200

CANADIAN NATIONAL

Over: CTH VV (PIONEER RD)

0.4M N JCT W SCOTT ST, Fond du Lac, WI

Built 2013 ADT: 15,000

CTH G

Over: STH 23 EB

AT CTH G, Fond du Lac, WI

Built 2021 ADT: 6,600

CTH V

Over: USH 151

0.5 MI E JCT MARTIN RD, Fond du Lac, WI

Built 2016 ADT: 18,700

CTH T

Over: USH 151

0.5M N CTH V, Fond du Lac, WI

Built 2016 ADT: 16,800

CNW RR

Over: LRD SOUTH MAIN STREET

0.7M N JCT USH 41 TO N, Fond du Lac, WI

Built 1935 ADT: 11,700

STH 175

Over: USH 151

AT INTERSECTION, Fond du Lac, WI

Built 2008 ADT: 11,500

LRD POPLAR RD

Over: SHEBOYGAN RIVER

0.4M W JCT CTH W, Fond du Lac, WI

Built 1927 Load: 9.7 t ADT: 60

CTH MMM

Over: S BR ROCK RIVER

0.7M N JCT STH 49, Fond du Lac, WI

Built 1964 Load: 17.8 t ADT: 1,053

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026