Iowa County, WI

212 public highway bridges

Iowa County Bridge Snapshot

Iowa County, Wisconsin contains 212 public highway bridges in the FHWA National Bridge Inventory. Roughly 60.8% are rated “Good,” 19.8% “Fair,” 5.7% “Poor,” and 5.7% 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.

212

Total Bridges

60.8%

Good

5.7%

Poor

5.7%

Structurally Deficient

Condition Distribution

Good

60.8% (129)

Fair

19.8% (42)

Poor

5.7% (12)

SD

5.7% (12)

All Bridges (212)

Sort:

USH 151 SBL

Over: LRD BRENNAN RD

0.6M E JCT STH 23, Iowa, WI

Built 1979 ADT: 950

USH 151 NBL

Over: LRD BRENNAN RD

0.5M E JCT STH 23, Iowa, WI

Built 1979 ADT: 950

USH 18 EB / USH 18

Over: USH 151

3.0M N JCT STH 23 TO E, Iowa, WI

Built 1980 ADT: 10,200

USH 18 WB-USH 151

Over: CTH Z

1.2M N JCT STH 191, Iowa, WI

Built 1980 ADT: 590

USH 18 EB-USH 151

Over: CTH Z

1.1M N JCT STH 191, Iowa, WI

Built 1980 ADT: 590

USH 151 SB

Over: STH 191

1.3M E JCT STH 23, Iowa, WI

Built 1979 ADT: 1,750

USH 151 NB

Over: STH 191

1.4M E JCT STH 23, Iowa, WI

Built 1979 ADT: 1,750

LRD SECTION LINE R

Over: USH 151

2.6M N JCT STH 23 TO E, Iowa, WI

Built 1980 ADT: 10,200

STH 23 NB

Over: USH 151

1.0M N JCT STH 23 TO E, Iowa, WI

Built 1979 ADT: 10,200

USH 18 WB-USH 151

Over: CTH H

6.4M N JCT CTH K, Iowa, WI

Built 1982 ADT: 170

USH 18 EB-USH 151

Over: CTH H

6.3M N JCT CTH K, Iowa, WI

Built 1988 ADT: 170

USH 18 EB-USH 151

Over: CTH ID | S. JONES STREET

0.8M S JCT CTH ID, Iowa, WI

Built 1988 ADT: 520

USH 18 WB-USH 151

Over: LRD S JONES ST

AT JCT USH 18, Iowa, WI

Built 1983 ADT: 520

PEDESTRIAN

Over: STH 23

3.8M E JCT CTH Y TO E, Iowa, WI

Built 1994 ADT: 2,700

CTH ID

Over: USH 18 & 151

1.1M E JCT CTH T TO S, Iowa, WI

Built 2002 ADT: 15,700

LRD RIDGE ST (CTH

Over: USH 151

2.0M N JCT CTH A, Iowa, WI

Built 2002 ADT: 99

USH NB USH 151

Over: STH 39

1.8M E JCT CTH E, Iowa, WI

Built 2001 ADT: 99

USH SB USH 151

Over: STH 39

1.7M E JCT CTH E, Iowa, WI

Built 2001 ADT: 1,800

USH 151 NB

Over: LRD HIGH STREET

TOWN OF MINERAL POINT, Iowa, WI

Built 2001 ADT: 99

USH 151 SB

Over: LRD HIGH STREET

CITY OF MINERAL POINT, Iowa, WI

Built 2001 ADT: 99

USH 151 NB

Over: STH 23

4.6M W JCT USH 151, Iowa, WI

Built 2001 ADT: 4,100

USH 151 SB

Over: STH 23

4.5M W JCT USH 151, Iowa, WI

Built 2001 ADT: 4,100

LRD WEIDENFELLER R

Over: USH 151

0.8M N JCT STH 23, Iowa, WI

Built 2001 ADT: 99

BIKE PATH

Over: USH 151

3.8M N JCT STH 23, Iowa, WI

Built 2002 ADT: 99

CTH A

Over: USH 151

7.1M N JCT STH 126, Iowa, WI

Built 2003 ADT: 11,700

USH 18 EB / USH 15

Over: LRD RIDGEVUE RD

PLEASE UPDATE LOCATION., Iowa, WI

Built 2018 ADT: 1,600

USH 18 WB / USH 15

Over: LRD RIDGEVUE ROAD

PLEASE UPDATE LOCATION, Iowa, WI

Built 2018 ADT: 1,583

CTH HHH

Over: USH 18 / USH 151

PLEASE UPDATE LOCATION, Iowa, WI

Built 2018 ADT: 15,300

LRD MILITARY RIDGE

Over: LRD BLUE MOUNDS RD

0.8M E JCT CTH K, Iowa, WI

Built 1938 ADT: 20

LRD COOK - MC FALL

Over: BR PECATONICA RIVER

1.4M N JCT CTH A, Iowa, WI

Built 1930 Load: 13.0 t ADT: 62

STH 80

Over: TRIB. TO MORREY CREEK

3.5MI. N CTH P WEST, Iowa, WI

Built 1930 Load: 14.6 t ADT: 320

LRD POWELL RD

Over: PECATONICA RIVER

1.5M S JCT CTH A, Iowa, WI

Built 1973 Load: 14.6 t ADT: 52

LRD WILSON RD

Over: NORWAY HOLLOW CREEK

1.4M E JCT CTH PP, Iowa, WI

Built 1940 Load: 14.6 t ADT: 41

CTH H

Over: CONLEY CREEK

2.8M S JCT USH 18, Iowa, WI

Built 1958 Load: 17.8 t ADT: 200

STH 191-5TH ST

Over: DODGE BRANCH

4.8M E JCT CTH W, Iowa, WI

Built 1930 Load: 17.8 t ADT: 790

LRD TWIN BRIDGE RD

Over: DODGE BRANCH

2.4M N JCT STH 39, Iowa, WI

Built 1960 Load: 17.8 t ADT: 156

STH 133

Over: MORREY CREEK

0.5M N JCT STH 80 TO S, Iowa, WI

Built 1952 Load: 19.4 t ADT: 1,300

LRD MT HOPE RD

Over: HARKER CREEK

1.3M S JCT CTH Q, Iowa, WI

Built 1930 Load: 19.4 t ADT: 78

CTH Q

Over: FLINT CREEK

0.2M S JCT CTH M, Iowa, WI

Built 1975 Load: 19.4 t ADT: 500

LRD TURNELL RD (DE

Over: W BR BLUE MOUNDS CREEK

0.1M E JCT CTH K, Iowa, WI

Built 1963 Load: 19.4 t ADT: 40

STH 39

Over: MINERAL POINT BRANCH

1.5M E JCT CTH E, Iowa, WI

Built 1936 Load: 21.1 t ADT: 1,100

LRD BANNER RD

Over: DODGE BRANCH

0.4M S JCT STH 191, Iowa, WI

Built 1976 Load: 22.7 t ADT: 156

LRD DARLINGTON RD

Over: BREWERY CREEK

0.1M S JCT STH 23, Iowa, WI

Built 1940 Load: 22.7 t ADT: 156

LRD MILL CREEK RD

Over: MINERAL POINT BRANCH

0.9M E JCT CTH Q, Iowa, WI

Built 1983 Load: 27.5 t ADT: 130

STH 23

Over: WISCONSIN RIVER 06

0.1M E JCT CTH C TO E, Iowa, WI

Built 1965 Load: 29.2 t ADT: 3,000

STH 39-MAIN ST

Over: BR E PECATONICA RIVER

0.4M E JCT CTH X, Iowa, WI

Built 1939 Load: 29.2 t ADT: 2,000

CTH K

Over: RIDGEWAY BRANCH

0.1M S JCT CTH H TO W, Iowa, WI

Built 1983 Load: 30.8 t ADT: 506

CTH I

Over: NORWAY CREEK

0.4M N JCT CTH II, Iowa, WI

Built 1979 Load: 30.8 t ADT: 263

LRD AMACHER HOLLOW

Over: MILL CREEK

0.1M W JCT CTH H, Iowa, WI

Built 1984 Load: 30.8 t ADT: 104

CTH C

Over: MILL CREEK

0.6M S JCT USH 14, Iowa, WI

Built 1981 Load: 30.8 t ADT: 980

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