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)

STH 133

Good

Over: GREEN RIVER

0.6M N JCT CTH C, Grant, WI

Built 2022 Load: 42.8 t ADT: 530

LRD SNOW BOTTOM RD

Good

Over: BLUE RIVER

1.9M E JCT CTH G, Grant, WI

Built 1992 Load: 43.7 t ADT: 102

LRD HOMER ROAD

Good

Over: SAUNDERS CREEK

2.9 M E JCT CTH T, Grant, WI

Built 1998 Load: 43.7 t ADT: 107

CTH G

Good

Over: SAND BR OF BLUE RIVER

3.1M N JCT CTH Q, Grant, WI

Built 2001 Load: 43.7 t ADT: 795

USH 151 NB

Good

Over: BLOCKHOUSE CR

2.9 MI N JCT CTH HH, Grant, WI

Built 2005 Load: 43.7 t ADT: 5,550

USH 151 SB

Good

Over: BLOCKHOUSE CR

4.3 MI S JCT CTH O, Grant, WI

Built 2005 Load: 43.7 t ADT: 5,550

CTH Q

Good

Over: FENNIMORE CREEK

2.3M W JCT CTH G, Grant, WI

Built 2005 Load: 43.7 t ADT: 525

LRD SLEEPY HOLLOW

Good

Over: PLATTE RIVER

2.0M S JCT CTH E, Grant, WI

Built 2006 Load: 43.7 t ADT: 115

LRD SANDY HOLLOW R

Good

Over: SANDY CREEK

3.3M N JCT CTH A, Grant, WI

Built 2009 Load: 43.7 t ADT: 103

LRD STANEK RD

Good

Over: SIX MILE CREEK

3.7M E JCT CTH Q, Grant, WI

Built 1969 Load: 43.7 t ADT: 102

LRD BADGER ROAD EB

Good

Over: BRANCH MARTIN BRANCH

2.1M W JCT CTH K, Grant, WI

Built 2014 Load: 45.0 t ADT: 100

LRD DARK HOLLOW RD

Good

Over: MILLVILLE CREEK

3.7M S JCT CTH C, Grant, WI

Built 1991 Load: 45.4 t ADT: 102

LRD BOWERS RD

Good

Over: BLUE RIVER

1.6M E JCT CTH G, Grant, WI

Built 1996 Load: 45.4 t ADT: 102

STH 35-STH 81

Good

Over: GRANT RIVER

5.0M N JCT CTH N, Grant, WI

Built 2009 Load: 45.4 t ADT: 1,500

STH 81

Good

Over: LITTLE PLATTE RIVER

0.3M E JCT CTH D, Grant, WI

Built 2006 Load: 45.4 t ADT: 4,700

STH 133-MAIN ST

Good

Over: POTOSI BRANCH

3.0M N JCT STH 32/USH 61, Grant, WI

Built 1997 Load: 47.0 t ADT: 810

LRD WISCONSIN VALL

Good

Over: TRIB. TO BIG GREEN RIVER

0.3 MI N JCT CTH T, Grant, WI

Built 2008 Load: 47.0 t ADT: 102

STH 133-MAIN ST

Good

Over: POTOSI BRANCH

2.8M N JCT STH 35/USH 61, Grant, WI

Built 1997 Load: 61.6 t ADT: 810

LRD ELM RD

Poor

Over: BR PLATTE RIVER

0.2M S JCT CTH O, Grant, WI

Built 1955 Load: 4.9 t ADT: 104

CTH N (DEAD END)

Poor

Over: BR MCCARTNEY BRANCH

1.8 M S JCT STH 133, Grant, WI

Built 1890 Load: 6.5 t ADT: 240

CTH T

Poor

Over: WISCONSIN RIVER 03

0.9M N JCT STH 133, Grant, WI

Built 1958 Load: 13.0 t ADT: 1,200

LRD BIG GREEN RD

Poor

Over: BIG GREEN RIVER

0.2M S JCT CTH K, Grant, WI

Built 1919 Load: 13.0 t ADT: 53

LRD WILLS LANE (DE

Poor

Over: FRENCH CREEK

0.6M N JCT CTH H, Grant, WI

Built 1950 Load: 14.6 t ADT: 50

CTH O

Poor

Over: PLATTE RIVER

2.7M E JCT USH 61, Grant, WI

Built 1956 Load: 16.2 t ADT: 600

LRD RATTLESNAKE RD

Poor

Over: BEETOWN BRANCH

1.8M S JCT STH 81, Grant, WI

Built 1950 Load: 16.2 t ADT: 37

LRD SLEEPY HOLLOW

Poor

Over: SAUNDERS CREEK

0.6M E JCT CTH S, Grant, WI

Built 1920 Load: 16.2 t ADT: 53

LRD PRESTON RD

Poor

Over: CASS VALLEY BRANCH

2.6M N JCT USH 18, Grant, WI

Built 1930 Load: 17.8 t ADT: 102

CTH G

Poor

Over: BLUE RIVER

0.3M W JCT CTH Q, Grant, WI

Built 1950 Load: 29.2 t ADT: 470

CTH Q

Poor

Over: FENNIMORE CREEK

3.5M W JCT CTH G, Grant, WI

Built 1984 Load: 32.4 t ADT: 519

LRD TOWNHALL RD

Poor

Over: CROOKED CREEK

0.2M W JCT USH 61, Grant, WI

Built 1900 Load: 32.4 t ADT: 102

LRD NEFF RD

Poor

Over: FENNIMORE CREEK

0.1M W JCT CTH Q, Grant, WI

Built 1973 Load: 37.3 t ADT: 102

CTH A

Poor

Over: DRY HOLLOW CREEK

0.1M S JCT CTH P, Grant, WI

Built 1963 Load: 38.9 t ADT: 830

LRD GLASSMAKER RD

Poor

Over: RATTLESNAKE CREEK

1.2M S JCT CTH U, Grant, WI

Built 1968 Load: 40.5 t ADT: 78

LRD TOWN LINE RD (

Structurally Deficient

Over: ROGERS BRANCH

3.7M S JCT USH 18, Grant, WI

Built 1910 Load: 19.4 t ADT: 50

CTH A

Structurally Deficient

Over: BR BLAKE FORK

1.2M E JCT STH 35, Grant, WI

Built 1941 Load: 25.9 t ADT: 434

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