Grant County, WI

385 public highway bridges

Grant County Bridge Snapshot

Grant County, Wisconsin contains 385 public highway bridges in the FHWA National Bridge Inventory. Roughly 62.3% are rated “Good,” 28.1% “Fair,” 4.4% “Poor,” and 4.4% 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

62.3%

Good

4.4%

Poor

4.4%

Structurally Deficient

Condition Distribution

Good

62.3% (240)

Fair

28.1% (108)

Poor

4.4% (17)

SD

4.4% (17)

All Bridges (385)

Sort:

CTH M

Over: PLEASANT VALLEY CREEK

1.7M W JCT CTH G, Grant, WI

Built 1980 Load: 32.4 t ADT: 180

STH 133

Over: RATTLESNAKE CREEK

7.6M N JCT CTH VV, Grant, WI

Built 1951 Load: 34.0 t ADT: 870

CTH U

Over: BEETOWN BRANCH

0.1M N JCT STH 81, Grant, WI

Built 1981 Load: 34.0 t ADT: 740

USH 18-STH 35

Over: LANE CREEK

3.4M E JCT CTH C, Grant, WI

Built 1992 Load: 34.0 t ADT: 4,000

LRD RATTLESNAKE RD

Over: RATTLESNAKE CREEK

0.2M S JCT STH 81, Grant, WI

Built 1973 Load: 34.0 t ADT: 37

LRD PLATTE RD

Over: PLATTE RIVER

1.3M N JCT CTH B, Grant, WI

Built 1935 Load: 34.0 t ADT: 51

CTH Z

Over: FAIRPLAY CREEK

0.1M E JCT STH 11, Grant, WI

Built 1983 Load: 35.6 t ADT: 1,000

USH 61

Over: CROOKED CREEK

6.5M N JCT CTH T, Grant, WI

Built 2002 Load: 35.6 t ADT: 4,000

USH 18-STH 35

Over: WISCONSIN RIVER 01

1.0M E JCT STH 60 TO E, Grant, WI

Built 1989 Load: 37.3 t ADT: 5,000

CTH I

Over: BLUE RIVER

2.4M N JCT USH 18, Grant, WI

Built 1991 Load: 37.3 t ADT: 784

USH 61-STH 35

Over: PLATTE RIVER

3.0M N JCT USH 151 TO N, Grant, WI

Built 1935 Load: 37.3 t ADT: 4,900

LRD BORAH RD

Over: BORAH CREEK

3.0M E JCT CTH K, Grant, WI

Built 1994 Load: 37.3 t ADT: 156

USH 61

Over: CROOKED CREEK

3.8M N JCT CTH T, Grant, WI

Built 1952 Load: 38.9 t ADT: 4,000

LRD STUDNICKA RD (

Over: BLUE RIVER

0.6M W JCT CTH G, Grant, WI

Built 1981 Load: 38.9 t ADT: 100

CTH Q

Over: FENNIMORE CREEK

4.1M W JCT CTH G, Grant, WI

Built 1987 Load: 38.9 t ADT: 519

STH 133

Over: BLUE RIVER

0.3M N JCT CTH T TO N, Grant, WI

Built 1996 Load: 38.9 t ADT: 1,900

USH 61

Over: GREGORY BRANCH

1.0M N JCT CTH E, Grant, WI

Built 1940 Load: 38.9 t ADT: 3,300

LRD SHEMAK RD

Over: BLUE RIVER

0.5M S JCT CTH Q, Grant, WI

Built 1962 Load: 38.9 t ADT: 102

CTH A

Over: GLASS HOLLOW CREEK

0.1M N JCT CTH P, Grant, WI

Built 1959 Load: 40.5 t ADT: 830

STH 133-PRAIRIE ST

Over: SAUNDERS CREEK

0.3M N JCT USH 61 TO N, Grant, WI

Built 1999 Load: 40.5 t ADT: 4,500

LRD SINSINAWA RD

Over: LITTLE MENOMINEE CREEK

1.2M E JCT CTH ZZ, Grant, WI

Built 1996 Load: 40.5 t ADT: 322

STH 11

Over: HOLLOW CREEK

1.5M E JCT USH 61, Grant, WI

Built 1939 Load: 40.5 t ADT: 4,200

LRD HILL CLIMB ROA

Over: MCADAM BRANCH

1.8M N JCT USH 61 TO N, Grant, WI

Built 1986 Load: 42.1 t ADT: 824

STH 11

Over: MENOMONIE CREEK

0.6M E JCT USH 61, Grant, WI

Built 1997 Load: 42.1 t ADT: 5,300

LRD DUBUQUE ROAD

Over: BR ROUNDTREE BRANCH

0.8M N JCT CTH D TO S, Grant, WI

Built 1937 Load: 42.1 t ADT: 3,800

LRD SPRING VALLEY

Over: LOUISBURG CREEK

2.0M E JCT USH 61, Grant, WI

Built 1973 Load: 42.1 t ADT: 53

CTH A

Over: SANDY CREEK

2.4M W JCT CTH VV, Grant, WI

Built 1992 Load: 43.7 t ADT: 830

CTH D

Over: FRENCH CREEK

1.4M N JCT CTH H, Grant, WI

Built 1974 Load: 51.8 t ADT: 600

LRD PARK RD (DEAD

Over: BR MISSISSIPPI RIVER

0.1M W JCT CTH VV, Grant, WI

Built 1962 Load: 8.1 t ADT: 300

LRD ROCK RD

Over: BR SNOWDEN BRANCH

2.7M W JCT CTH D, Grant, WI

Built 1960 Load: 14.6 t ADT: 53

LRD OLD LANCASTER

Over: LITTLE PLATTE RIVER

0.8M W JCT CTH 81, Grant, WI

Built 1982 Load: 19.4 t ADT: 225

LRD HICKLIN HOLLOW

Over: LANE CREEK

0.2M E JCT USH 18, Grant, WI

Built 2000 Load: 19.4 t ADT: 102

CTH C

Over: LANE CREEK

0.1M E JCT USH 18, Grant, WI

Built 1961 Load: 21.1 t ADT: 1,200

LRD WILSON HILL RD

Over: LITTLE GRANT RIVER

0.6M E JCT CTH J, Grant, WI

Built 1978 Load: 21.1 t ADT: 102

LRD GRANEY RD

Over: PLATTE RIVER

1.7M N JCT STH 81, Grant, WI

Built 1977 Load: 24.3 t ADT: 78

CTH VV

Over: MC CARTNEY BRANCH

3.1M N JCT STH 133, Grant, WI

Built 1990 Load: 24.3 t ADT: 254

LRD TORMEY RD

Over: FENNIMORE CREEK

0.1M S JCT CTH Q, Grant, WI

Built 1973 Load: 24.3 t ADT: 53

LRD BIG GREEN RD

Over: BIG GREEN RIVER

1.1M S JCT CTH K, Grant, WI

Built 1980 Load: 24.3 t ADT: 102

LRD ALDERSON RD

Over: BR BIG GREEN RIVER

2.6M N JCT USH 18, Grant, WI

Built 1976 Load: 24.3 t ADT: 102

LRD SOUTH RIDGE RD

Over: LITTLE GRANT RIVER

0.2M E JCT CTH J, Grant, WI

Built 1973 Load: 24.3 t ADT: 102

LRD PLEASANT VALLE

Over: MARTIN BRANCH

2.9M S JCT USH 18, Grant, WI

Built 1964 Load: 24.3 t ADT: 102

LRD MARIAN RD

Over: BR MARTIN BRANCH

2.8M N JCT CTH A, Grant, WI

Built 1968 Load: 24.3 t ADT: 102

LRD MILNER RD

Over: LITTLE GRANT RIVER

0.9M E JCT CTH A, Grant, WI

Built 1979 Load: 24.3 t ADT: 53

LRD UNIVERSITY FAR

Over: BR BLAKE FORK

1.8M S JCT CTH A, Grant, WI

Built 1973 Load: 24.3 t ADT: 102

LRD BORAH RD

Over: BORAH CREEK

3.3M N JCT CTH K, Grant, WI

Built 1967 Load: 24.3 t ADT: 78

LRD HYPOINT RD

Over: BR PLATTE RIVER

3.3M N JCT CTH A, Grant, WI

Built 1970 Load: 24.3 t ADT: 80

LRD FAIRVIEW RD

Over: KUENSTER CREEK

1.0M E JCT CTH VV, Grant, WI

Built 1970 Load: 24.3 t ADT: 102

LRD OLD POTOSI RD

Over: BR BOICE CREEK

2.3M W JCT USH 61, Grant, WI

Built 1976 Load: 24.3 t ADT: 104

LRD SINSINAWA RD

Over: BR SINSINAWA RIVER

2.7M W JCT STH 80, Grant, WI

Built 1966 Load: 24.3 t ADT: 80

LRD MILL RD

Over: BR SINSINAWA RIVER

0.3M N JCT STH 11, Grant, WI

Built 1968 Load: 24.3 t ADT: 53

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 6, 2026