Rock County, WI

325 public highway bridges

Rock County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Rock County, Wisconsin contains 325 public highway bridges. Roughly 36.9% are rated “Good,” 26.8% “Fair,” and 3.4% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

325
Total Bridges
36.9%
Good
26.8%
Fair
3.4%
Poor Condition

Condition Distribution

Good
36.9% (120)
Fair
26.8% (87)
Poor
3.4% (11)

All Bridges (325)

STH 138

Good

Over: BADFISH CREEK

0.3M N JCT STH 59, Rock, WI

Built 1992 Load: 42.1 t ADT: 3,700

LRD RILEY RD

Good

Over: BADFISH CREEK

0.2M S JCT STH 59, Rock, WI

Built 1995 Load: 42.1 t ADT: 38

STH 140

Good

Over: TURTLE CREEK

1.7M N JCT IH 43 TO N, Rock, WI

Built 2005 Load: 42.1 t ADT: 2,600

LRD JOHNSON DR

Good

Over: SOUTH BASS CR

3.7M N JCT STH 213, Rock, WI

Built 2003 Load: 42.1 t ADT: 275

IH 39 SB / IH 90 E

Good

Over: CNW RR

1.0M S JCT STH 11 TO W, Rock, WI

Built 2019 Load: 42.4 t ADT: 32,550

IH 39 NB / IH 90 W

Good

Over: CNW/UP RR

4.4M W JCT CTH S TO E, Rock, WI

Built 2018 Load: 42.4 t ADT: 32,550

LRD SOUTH MAIN STR

Good

Over: SPRING BROOK CREEK

0.6M S JCT STH 11, Rock, WI

Built 1990 Load: 43.7 t ADT: 3,900

STH 81-PORTLAND AV

Good

Over: ROCK RIVER

0.1M E JCT STH 213 TO N, Rock, WI

Built 1996 Load: 43.7 t ADT: 18,200

LRD CALEDONIA RD

Good

Over: BR YAHARA RIVER

3.0M W JCT STH 184, Rock, WI

Built 2008 Load: 43.7 t ADT: 104

STH 11

Good

Over: UNNAMED TRIBUTARY

1.5 M E JCT STH 213, Rock, WI

Built 2022 Load: 44.1 t ADT: 5,317

LRD DICKEY RD

Good

Over: SWAN CREEK

0.7M N JCT STH 11, Rock, WI

Built 1997 Load: 47.0 t ADT: 47

LRD ORFORDVILLE-HA

Good

Over: BR BASS CREEK

1.8M E JCT STH 213, Rock, WI

Built 1997 Load: 47.0 t ADT: 292

CTH H

Good

Over: MARSH CREEK

1.6M N JCT CTH A, Rock, WI

Built 2008 Load: 47.0 t ADT: 4,300

LRD EMERALD GROVE

Good

Over: BR TURTLE CREEK

3.0M S JCT USH 14, Rock, WI

Built 1997 Load: 51.8 t ADT: 88

LRD CLEOPHAS RD

Poor

Over: RACCOON CREEK

0.7M E JCT CTH K, Rock, WI

Built 1918 Load: 6.8 t ADT: 82

LRD ORILEY RD

Poor

Over: TURTLE CREEK

2.0M N JCT CTH X, Rock, WI

Built 1963 Load: 13.0 t ADT: 293

LRD LATHERS RD

Poor

Over: TURTLE CREEK

0.1M N JCT CTH S, Rock, WI

Built 1887 Load: 14.6 t ADT: 474

LRD CALEDONIA RD

Poor

Over: YAHARA RIVER

1.2M W JCT STH 184, Rock, WI

Built 1966 Load: 19.4 t ADT: 215

LRD N FOOTVILLE RD

Poor

Over: BR STEVENS CREEK

1.5M S JCT CTH A, Rock, WI

Built 1980 Load: 19.4 t ADT: 23

USH 51-CENTER AVE

Poor

Over: CNW RR

11.3M N JCT STH 81, Rock, WI

Built 1982 Load: 24.3 t ADT: 14,600

LRD MILTON SHOPIER

Poor

Over: BR BLACKHAWK CREEK

0.4M S JCT CTH MM, Rock, WI

Built 1923 Load: 29.2 t ADT: 165

STH 213-4TH ST

Poor

Over: ROCK RIVER

0.1M N JCT USH 51, Rock, WI

Built 1962 Load: 32.4 t ADT: 5,700

CTH N

Poor

Over: OTTER CREEK

0.1M W JCT STH 26, Rock, WI

Built 1964 Load: 32.4 t ADT: 1,461

CTH J

Poor

Over: LITTLE TURTLE CREEK

1.3M E JCT CTH P, Rock, WI

Built 1976 Load: 34.0 t ADT: 270

CTH KK

Poor

Over: JOHNSTOWN CREEK

2.3M N JCT CTH M, Rock, WI

Built 1977 Load: 45.4 t ADT: 178

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.