Monroe County, WI

385 public highway bridges

Monroe County Bridge Snapshot

Monroe County, Wisconsin contains 385 public highway bridges in the FHWA National Bridge Inventory. Roughly 44.4% are rated “Good,” 37.7% “Fair,” 3.1% “Poor,” and 3.1% 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.

385

Total Bridges

44.4%

Good

3.1%

Poor

3.1%

Structurally Deficient

Condition Distribution

Good

44.4% (171)

Fair

37.7% (145)

Poor

3.1% (12)

SD

3.1% (12)

All Bridges (385)

Sort:

IH 94 EB

Over: RAMP IH 90EB-IH 94WB

AT JCT IH 90-94, Monroe, WI

Built 1963 ADT: 2,100

IH 94 EB

Over: LRD FOLEY AVENUE

0.7M E JCT USH 12, Monroe, WI

Built 1963 ADT: 99

IH 94 WB

Over: LRD FOLEY AVENUE/UP RR

0.7M E JCT USH 12, Monroe, WI

Built 1963 ADT: 99

IH 90 EB

Over: USH 12-STH 16

1.6M E JCT STH 16 (D), Monroe, WI

Built 1968 ADT: 2,900

IH 90 WB

Over: USH 12-STH 16

1.6M E JCT STH 16 (D), Monroe, WI

Built 1968 ADT: 5,100

IH 94 EB

Over: USH 12

1.8M E JCT CTH G (E), Monroe, WI

Built 1968 ADT: 7,200

IH 94 WB

Over: USH 12

1.8M E JCT CTH G (E), Monroe, WI

Built 1968 ADT: 7,200

CTH PP

Over: IH 90-IH 94

3.9M E JCT IH 94 TO W, Monroe, WI

Built 1963 ADT: 31,900

CTH N

Over: IH 90-IH 94

2.4M E JCT IH 94 TO W, Monroe, WI

Built 1963 ADT: 31,900

CTH ET

Over: IH 94

2.0M E JCT USH 12 TO E, Monroe, WI

Built 1963 ADT: 26,100

IH RAMP IH 90 EB-I

Over: IH 90 WB

0.3M W JCT IH 94 TO W, Monroe, WI

Built 1963 ADT: 5,900

IH 94 EB

Over: IH 90 WB

0.5M W JCT IH 94 TO W, Monroe, WI

Built 1963 ADT: 5,900

IH 94 EB

Over: LRD ASPEN AVENUE

2.1M E JCT USH 12, Monroe, WI

Built 1968 ADT: 540

IH 94 WB

Over: LRD ASPEN AVENUE

2.1M E JCT USH 12, Monroe, WI

Built 1968 ADT: 540

IH 94 EB

Over: CTH EW

1.1M E JCT USH 12, Monroe, WI

Built 1968 ADT: 510

IH 94 WB

Over: CTH EW

1.1M E JCT USH 12, Monroe, WI

Built 1968 ADT: 510

LRD CORTLAND AVE

Over: IH 94

2.1M E JCT CTH E, Monroe, WI

Built 1968 ADT: 19,900

CTH OO

Over: IH 94

2.9M E JCT CTH E, Monroe, WI

Built 1968 ADT: 19,900

IH 90 EB

Over: LRD LEON VALLEY RD

1.3M W JCT STH 27, Monroe, WI

Built 1968 ADT: 100

IH 90 WB

Over: LRD LEON VALLEY RD

1.3M W JCT STH 27, Monroe, WI

Built 1968 ADT: 100

STH 27 NB-BLACK RI

Over: IH 90

9.5M E JCT STH 162 TO N, Monroe, WI

Built 1968 ADT: 19,300

LRD IDEAL RD

Over: IH 90

0.8M E JCT STH 27 TO N, Monroe, WI

Built 1968 ADT: 19,300

LRD JOHN ST/IGLOO

Over: IH 90

1.6M E JCT STH 27 TO N, Monroe, WI

Built 1968 ADT: 19,300

STH 71

Over: IH 90

2.5M E JCT STH 27 (E), Monroe, WI

Built 1968 ADT: 19,300

STH 16

Over: IH 90

3.5M E JCT STH 27 (E), Monroe, WI

Built 1968 ADT: 19,300

IH 90 EB

Over: CTH A

0.1M N JCT STH 16, Monroe, WI

Built 1968 ADT: 830

IH 90 WB

Over: CTH A

0.1M N JCT STH 16, Monroe, WI

Built 1968 ADT: 830

IH 90 EB

Over: LRD HAZEL AVENUE

0.1M N JCT STH 16, Monroe, WI

Built 1968 ADT: 50

IH 90 WB

Over: LRD HAZEL AVENUE

0.1M N JCT STH 16, Monroe, WI

Built 1968 ADT: 50

IH 90 EB

Over: STH 16

0.1M E JCT CTH T, Monroe, WI

Built 1968 ADT: 2,300

IH 90 WB

Over: STH 16

0.1M E JCT CTH T, Monroe, WI

Built 1968 ADT: 2,400

STH 131

Over: IH 90

13.4M E JCT STH 16 TO E, Monroe, WI

Built 1968 ADT: 16,300

STH 27 SB

Over: IH 90

9.5M E JCT STH 162 TO N, Monroe, WI

Built 1968 ADT: 19,300

ELROY-SPARTA TRAIL

Over: STH 71-STH 131

2.8M E JCT STH 131 TO S, Monroe, WI

Built 1984 ADT: 2,600

LRD INDUSTRIAL AVE

Over: IH 94

AT INDUSTRIAL AVE, Monroe, WI

Built 2003 ADT: 26,100

LRD ELROY-SPARTA T

Over: IH 90

TOWN OF SPARTA, Monroe, WI

Built 2002 ADT: 99

STH 21

Over: IH 94

AT STH21, Monroe, WI

Built 2005 ADT: 17,700

LRD FUNNEL RD

Over: IH 90/94 EB

AT INTERSECTION, Monroe, WI

Built 2011 ADT: 31,900

IH 90/94 WB

Over: LRD FUNNEL RD

0.4M N JCT USH 12, Monroe, WI

Built 2010 ADT: 225

LRD GROVER ROAD

Over: IH 90 EB-IH 94 EB

AT INTERSECTION, Monroe, WI

Built 2009 ADT: 15,950

LRD GROVER ROAD

Over: IH 90 WB-IH 94 WB

AT INTERSECTION, Monroe, WI

Built 2009 ADT: 15,950

IH 94 EB

Over: USH 12

0.6M E JCT CTH M, Monroe, WI

Built 2016 ADT: 1,400

IH 94 WB

Over: USH 12

0.6M E JCT CTH M, Monroe, WI

Built 2015 ADT: 1,400

IH 94 EB

Over: LRD EMPIRE AVENUE

1.2M E JCT CTH M, Monroe, WI

Built 2016 ADT: 80

IH 94 WB

Over: LRD EMPIRE AVENUE

1.2M E JCT CTH M, Monroe, WI

Built 2015 ADT: 150

IH 90 EB

Over: CTH M

0.1M S JCT STH 16, Monroe, WI

Built 2019 ADT: 700

IH 90 WB

Over: CTH M

0.1M S JCT STH 16, Monroe, WI

Built 2019 ADT: 700

STH 16/71-WISC AVE

Over: LRD MILWAUKEE AVE/CP RR

0.4M E JCT STH 16, Monroe, WI

Built 1939 ADT: 100

ELROY-SPARTA TRAIL

Over: LRD KEEL ROAD

2.5M E JCT CTH AA, Monroe, WI

Built 1902 ADT: 940

CNW RR

Over: LRD 10TH COURT

0.3M W JCT STH 71, Monroe, WI

Built 1915 ADT: 40

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