Dane County, WI

624 public highway bridges

Dane County Bridge Snapshot

Dane County, Wisconsin contains 624 public highway bridges in the FHWA National Bridge Inventory. Roughly 30% are rated “Good,” 22.9% “Fair,” 5.6% “Poor,” and 5.6% 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.

624

Total Bridges

30%

Good

5.6%

Poor

5.6%

Structurally Deficient

Condition Distribution

Good

30% (187)

Fair

22.9% (143)

Poor

5.6% (35)

SD

5.6% (35)

All Bridges (624)

Sort:

PEDESTRIAN WALKWAY

Over: USH 51-STOUGHTON RD

3.5M N JCT USH 12 TO E, Dane, WI

Built 1979 ADT: 53,250

LRD TOWN HALL ROAD

Over: USH 18-USH 151

1.6M E JCT STH 92, Dane, WI

Built 1991 ADT: 23,200

LRD LUNDE LANE

Over: USH 18-USH 151

2.1M E JCT STH 92, Dane, WI

Built 1991 ADT: 23,200

CTH PD

Over: USH 18-USH 151

0.4M E JCT CTH P TO N, Dane, WI

Built 1991 ADT: 23,200

USH 18 WB-USH 151

Over: CTH J

1.7M N JCT CTH G, Dane, WI

Built 1991 ADT: 880

USH 51 NB

Over: LRD TAYLOR ST

0.6M N JCT CTH MN, Dane, WI

Built 1992 ADT: 819

USH 51 NB

Over: LRD SIGGELKOW RD

2.4M E JCT CTH AB, Dane, WI

Built 1992 ADT: 7,600

USH 51 SB

Over: LRD SIGGELKOW RD

2.4M E JCT CTH AB, Dane, WI

Built 1992 ADT: 7,600

USH 151 SB

Over: LRD AMERICAN PARKWAY

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,800

USH 151 NB

Over: LRD AMERICAN PARKWAY

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,800

USH 151 SB

Over: LRD DUAL RAMP

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,200

USH 151 NB

Over: LRD DUAL RAMP

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,200

USH 18 WB-USH 151

Over: LRD FITCHRONA RD

0.7M S JCT CTH PD, Dane, WI

Built 1994 ADT: 5,800

USH 18 EB-USH 151

Over: LRD FITCHRONA RD

0.7M S JCT CTH PD, Dane, WI

Built 1994 ADT: 5,800

IH RAMP IH 90 WB-S

Over: IH 90 EB

0.5M E JCT IH 94 TO E, Dane, WI

Built 1994 ADT: 54,500

CTH G

Over: USH 18-USH 151

2.7M E JCT CTH J, Dane, WI

Built 1993 ADT: 24,700

LRD RAMP W-1

Over: USH 18-USH 151

0.6M E JCT CTH G TO S, Dane, WI

Built 1995 ADT: 26,700

USH 18 EB-USH 151

Over: STH 69

3.5M N JCT CTH PB TO S, Dane, WI

Built 1994 ADT: 6,200

USH 18 WB-USH 151

Over: STH 69

3.5M N JCT CTH PB TO S, Dane, WI

Built 1994 ADT: 6,200

LRD LOCUST DRIVE

Over: USH 18-USH 151

1.0M E JCT STH TO S, Dane, WI

Built 1994 ADT: 26,700

CTH M

Over: USH 18-USH 151

1.5M E JCT STH 69 TO S, Dane, WI

Built 1994 ADT: 27,500

USH 18 EB-USH 151

Over: CTH OLD CTH PB

0.3M N JCT CTH M, Dane, WI

Built 1995 ADT: 3,800

USH 18 WB-USH 151

Over: CTH OLD CTH PB

0.8M N JCT CTH M, Dane, WI

Built 1995 ADT: 3,800

USH 18 EB-USH 151

Over: LRD WHALEN ROAD

0.8M E JCT CTH M, Dane, WI

Built 1995 ADT: 2,300

USH 18 WB-USH 151

Over: LRD WHALEN ROAD

0.8M E JCT CTH M, Dane, WI

Built 1995 ADT: 2,300

USH 18 EB-USH 151

Over: LRD GRANDVIEW ROAD

0.1M E JCT CTH PB, Dane, WI

Built 1995 ADT: 99

USH 18 WB-USH 151

Over: LRD GRANDVIEW ROAD

0.1M E JCT CTH PB, Dane, WI

Built 1995 ADT: 99

USH 18 EB-USH 151

Over: LRD E.B. ENTRANCE RAMP

0.4M E JCT CTH PB, Dane, WI

Built 1995 ADT: 4,400

USH 18 WB-USH 151

Over: LRD E.B. ENTRANCE RAMP

0.4M E JCT CTH PB, Dane, WI

Built 1995 ADT: 4,400

IH 94 EB

Over: IH 90 WB

4.3M W JCT USH 12 TO E, Dane, WI

Built 1996 ADT: 54,500

IH 39SB/90 EB

Over: CTH T

0.9M E JCT STH 30, Dane, WI

Built 1997 ADT: 5,800

IH 94 EB

Over: CTH T

0.9M E JCT STH 30, Dane, WI

Built 1996 ADT: 6,700

IH WB CD RDWY

Over: USH 151

TOWN OF BURKE, Dane, WI

Built 2002 ADT: 70,400

IH EB CD RDWY

Over: USH 151

TOWN OF BURKE, Dane, WI

Built 2002 ADT: 70,400

LRD HIGH CROSSING

Over: IH /39/90/94

0.1M E JCT USH 151 TO N, Dane, WI

Built 2000 ADT: 109,000

CTH N

Over: USH 12-USH 18

3.0M E JCT IH 90, Dane, WI

Built 1998 ADT: 14,200

IH RAMP USH 12 EB-

Over: USH 12 WB-USH 18 WB

1.4M W JCT CTH AB (A), Dane, WI

Built 1997 ADT: 19,300

IH 39 SB/90 EB

Over: RAMP IH 39NB/90WB-USH 12

AT JCT IH 90-USH 12-18, Dane, WI

Built 1997 ADT: 9,500

IH 39 SB/90 EB

Over: LRD FEMRITE RD

1.6M W JCT CTH AB, Dane, WI

Built 1997 ADT: 3,300

IH 39 NB / IH 90 W

Over: LRD FEMRITE RD

1.6M W JCT CTH AB, Dane, WI

Built 1997 ADT: 3,000

IH 39 SB/IH 90 EB

Over: USH 12 WB-USH 18 WB

1.6M W JCT CTH AB (A), Dane, WI

Built 1997 ADT: 19,300

IH 39 NB OFF RAMP

Over: USH 12 WB-USH 18 WB

1.5M W JCT CTH AB, Dane, WI

Built 1997 ADT: 8,200

IH 39 SB/90 EB

Over: USH 12 EB-USH 18 EB

1.5M E JCT USH 51 (A), Dane, WI

Built 1997 ADT: 46,300

IH 39 NB OFF RAMP

Over: USH 12 EB-USH 18 EB

1.6M E JCT USH 51 (A), Dane, WI

Built 1997 ADT: 46,300

LRD MILWAUKEE ST

Over: IH 90 EB

0.7M E JCT IH 94 TO E, Dane, WI

Built 1997 ADT: 48,700

WISCONSIN & SOUTHE

Over: LRD PARK STREET

CITY OF MADISON, Dane, WI

Built 1998 ADT: 99

BIKE TRAIL

Over: USH 12 &14

6.1M E JCT USH 14 TO W, Dane, WI

Built 1998 ADT: 85,900

IH 94 EB

Over: LRD SPRECHER RD.

AT IH 94, Dane, WI

Built 2011 ADT: 10,000

IH 94 WB

Over: LRD SPRECHER RD.

AT INTERSECTION, Dane, WI

Built 2009 ADT: 10,000

IH 94 EB

Over: LRD GASTON ROAD

GASTON ROAD, Dane, WI

Built 2012 ADT: 2,100

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