Rock County, MN

252 public highway bridges

Rock County Bridge Snapshot

Rock County, Minnesota contains 252 public highway bridges in the FHWA National Bridge Inventory. Roughly 82.5% are rated “Good,” 12.7% “Fair,” 1.6% “Poor,” and 1.6% 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 MN 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.

252
Total Bridges
82.5%
Good
1.6%
Poor
1.6%
Structurally Deficient

Condition Distribution

Good
82.5% (208)
Fair
12.7% (32)
Poor
1.6% (4)
SD
1.6% (4)

All Bridges (252)

M 75

Good

Over: ROCK RIVER OVERFLOW

.6 MI S OF JCT CSAH 4, Rock, MN

Built 2005 Load: 29.8 t ADT: 297

CSAH 5

Good

Over: BEAVER CREEK

1.9 MI E OF JCT CSAH 6, Rock, MN

Built 1956 Load: 30.8 t ADT: 304

CSAH 9

Good

Over: CHAMPEPADAN CREEK

0.6 MI S OF JCT CSAH 8, Rock, MN

Built 1971 Load: 31.0 t ADT: 124

CSAH 1

Good

Over: ASH CREEK OVERFLOW

1.5 MI E OF JCT TH 75, Rock, MN

Built 1991 Load: 32.0 t ADT: 466

CSAH 16

Good

Over: STREAM

0.7 MI W OF JCT CR 55, Rock, MN

Built 2012 Load: 32.4 t ADT: 29

T 64

Good

Over: UNNAMED CREEK

0.8 MI E OF JCT TH 75, Rock, MN

Built 2014 Load: 32.4 t ADT: 49

T 76

Good

Over: UNNAMED STREAM

0.3 MI E OF JCT TH 23, Rock, MN

Built 2014 Load: 32.4 t ADT: 49

T 73

Good

Over: STREAM

0.1 MI E OF JCT TH 23, Rock, MN

Built 2014 Load: 32.4 t ADT: 49

T 76

Good

Over: UNNAMED

0.01 MI OF W OF CR51, Rock, MN

Built 2014 Load: 32.4 t ADT: 49

T 111

Good

Over: DEVILS GULCH CREEK

0.1 MI S OF JCT CSAH 20, Rock, MN

Built 2014 Load: 32.4 t ADT: 49

CSAH 1

Good

Over: UNNAMED STREAM

1.8 MI E OF JCT CSAH 3, Rock, MN

Built 2014 Load: 32.4 t ADT: 466

CSAH 13

Good

Over: UPPER MUD CREEK

1.6 MI W OF JCT CSAH 6, Rock, MN

Built 2014 Load: 32.4 t ADT: 1,240

CSAH 13

Good

Over: BLOOD RUN

0.5 MI W OF JCT CSAH 17, Rock, MN

Built 2014 Load: 32.4 t ADT: 914

T 8

Good

Over: STREAM

0.9 MI S OF JCT CSAH 4, Rock, MN

Built 2019 Load: 32.4 t ADT: 49

CSAH 3

Good

Over: STREAM

0.3 MI S OF JCT CSAH 8, Rock, MN

Built 2015 Load: 32.4 t ADT: 305

CR 59

Good

Over: STREAM

0.6 MI S OF JCT CSAH 8, Rock, MN

Built 2015 Load: 32.4 t ADT: 40

T 146

Good

Over: STREAM

0.4 MI E OF JCT CSAH 2, Rock, MN

Built 2015 Load: 32.4 t ADT: 49

CR 59

Good

Over: STREAM

1.7 MI N OF JCT CSAH 20, Rock, MN

Built 2015 Load: 32.4 t ADT: 21

T 55

Good

Over: MOUND CREEK

0.6 MI E OF JCT TH 75, Rock, MN

Built 2016 Load: 32.4 t ADT: 49

CSAH 12

Good

Over: POPLAR CREEK

6 MI NW OF HARDWICK MN, Rock, MN

Built 2019 Load: 32.4 t ADT: 714

CR 59

Good

Over: TRIB TO SPLIT ROCK CREEK

6 MI NW OF BEAVER CREEK, Rock, MN

Built 2019 Load: 32.4 t ADT: 40

CR 65

Good

Over: UNNAMED STREAM

0.4 MI N OF JCT CSAH 7, Rock, MN

Built 2020 Load: 32.4 t ADT: 36

CR 55

Good

Over: TRIB TO ROCK RIVER

0.1 MI S OF JCT CSAH 15, Rock, MN

Built 2020 Load: 32.4 t ADT: 31

CSAH 15

Good

Over: TRIB TO ROCK RIVER

1.8 M W OF JCT CSAH 3, Rock, MN

Built 2019 Load: 32.4 t ADT: 170

M 20

Good

Over: UNNAMED STREAM

0.04 MI SE OF KOEHN AVE, Rock, MN

Built 2019 Load: 32.4 t ADT: 1

CSAH 7

Good

Over: STREAM

0.4 MI W OF JCT CSAH 3, Rock, MN

Built 2021 Load: 32.4 t ADT: 285

CSAH 6

Good

Over: TRIB TO MUD CREEK

1.2 MI S OF JCT CSAH 15, Rock, MN

Built 2023 Load: 32.4 t ADT: 1,173

M 43

Good

Over: DITCH

205 FT W OF JCT M 45, Rock, MN

Built 2023 Load: 32.4 t ADT: 1

US 75

Good

Over: TRIB TO ROCK RIVER

0.6 MI N 0F JCT I 90, Rock, MN

Built 2014 Load: 32.4 t ADT: 7,872

T 45

Good

Over: ELK CREEK

0.9 MI W OF JCT CSAH 3, Rock, MN

Built 1982 Load: 32.4 t ADT: 30

T 32

Good

Over: MUD CREEK

2.2 MI E OF JCT CSAH 6, Rock, MN

Built 1980 Load: 32.4 t ADT: 68

T 32

Good

Over: STREAM

2.0 MI E OF JCT CSAH 6, Rock, MN

Built 1983 Load: 32.4 t ADT: 68

M 18

Good

Over: POPLAR CREEK

0.4 MI S OF JCT CSAH 4, Rock, MN

Built 1974 Load: 32.4 t ADT: 823

T 100

Good

Over: BEAVER CREEK

0.1 MI N OF JCT CSAH 20, Rock, MN

Built 1988 Load: 33.1 t ADT: 80

T 23

Good

Over: MUD CREEK

0.6 MI E OF JCT CSAH 6, Rock, MN

Built 1982 Load: 33.3 t ADT: 70

T 142

Good

Over: Beaver Creek

0.3 mi N of jct CSAH 4, Rock, MN

Built 2001 Load: 33.3 t ADT: 35

CSAH 9

Good

Over: STREAM

0.8 MI N OF JCT CSAH 15, Rock, MN

Built 2012 Load: 35.6 t ADT: 325

CR 58

Good

Over: ROCK RIVER

0.6 MI E OF JCT TH 75, Rock, MN

Built 1996 Load: 35.7 t ADT: 55

T 70

Good

Over: BEAVER CREEK

0.1 MI W OF JCT CR 54, Rock, MN

Built 1982 Load: 35.9 t ADT: 67

T 7

Good

Over: STREAM

1.9 MI S OF JCT CSAH 1, Rock, MN

Built 1982 Load: 35.9 t ADT: 42

T 84

Good

Over: ELK CREEK

1.0 MI N OF JCT CSAH 4, Rock, MN

Built 1979 Load: 35.9 t ADT: 82

CSAH 8

Good

Over: LITTLE BEAVER CREEK

0.1 MI W OF JCT CSAH 11, Rock, MN

Built 1970 Load: 35.9 t ADT: 309

CR 65

Good

Over: STREAM

0.9 MI S OF JCT CSAH 10, Rock, MN

Built 1972 Load: 35.9 t ADT: 140

CSAH 7

Good

Over: BEAVER CREEK

0.2 MI W OF JCT CSAH 11, Rock, MN

Built 1972 Load: 35.9 t ADT: 337

CSAH 7

Good

Over: STREAM

0.1 MI E OF JCT CSAH 19, Rock, MN

Built 1976 Load: 35.9 t ADT: 729

CSAH 15

Good

Over: MUD CREEK

1.5 MI E OF JCT CSAH 6, Rock, MN

Built 1976 Load: 35.9 t ADT: 79

CSAH 11

Good

Over: STREAM

0.7 MI S OF JCT CSAH 20, Rock, MN

Built 1988 Load: 35.9 t ADT: 136

T 26

Good

Over: ASH CREEK

1.1 MI N OF JCT TH 270, Rock, MN

Built 1982 Load: 35.9 t ADT: 66

T 85

Good

Over: STREAM

1.5 MI S OF CSAH 10, Rock, MN

Built 1980 Load: 35.9 t ADT: 62

T 100

Good

Over: LITTLE BEAVER CREEK

0.7 MI N OF JCT CSAH 8, Rock, MN

Built 1980 Load: 35.9 t ADT: 66

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