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)

IH 39 SB/90 EB

Good

Over: CMSTPP RR / SPRING BROOK

0.6M E JCT IH 43 TO S, Rock, WI

Built 2021 Load: 36.3 t ADT: 29,550

IH 39 SB / IH 90 E

Good

Over: SPRING BROOK / SPRING BR

2.3M E JCT USH 14 TO E, Rock, WI

Built 2019 Load: 36.3 t ADT: 38,500

IH 39 NB / IH 90 W

Good

Over: SPRING BROOK / SPRING BR

PLEASE UPDATE LOCATION, Rock, WI

Built 2018 Load: 36.3 t ADT: 38,500

LRD INMAN PARKWAY

Good

Over: TURTLE CREEK

0.3 MI W JCT SHOPIERE RD, Rock, WI

Built 2016 Load: 36.6 t ADT: 5,100

LRD S SMITH RD

Good

Over: TURTLE CREEK

0.3M N JCT CTH J, Rock, WI

Built 2020 Load: 36.6 t ADT: 140

STH 26 NB

Good

Over: WSOR RR

0.3 MI. N OF STH 59, Rock, WI

Built 2013 Load: 36.9 t ADT: 13,900

STH 26 SB

Good

Over: WSOR RR

2 MI S CTH N, Rock, WI

Built 2013 Load: 36.9 t ADT: 13,900

IH 39 SB / IH 90 E

Good

Over: TURTLE CREEK

5.0M E JCT STH 11 TO W, Rock, WI

Built 2019 Load: 36.9 t ADT: 26,700

LRD HANOVER RD

Good

Over: MARKHAM CREEK

1.9M W JCT CTH D, Rock, WI

Built 2020 Load: 36.9 t ADT: 680

USH 51-E GRAND AVE

Good

Over: TURTLE CREEK

0.1M N ILLINOIS ST LINE, Rock, WI

Built 1997 Load: 37.3 t ADT: 12,400

LRD BELOIT-NEWARK

Good

Over: RACCOON CREEK

1.1M E JCT CTH K, Rock, WI

Built 1996 Load: 37.3 t ADT: 350

LRD WATER ST

Good

Over: ALLEN CREEK

0.1M E JCT STH 59, Rock, WI

Built 1996 Load: 37.3 t ADT: 2,250

LRD TUTTLE ROAD

Good

Over: MARSH CREEK

1.5M N JCT CTH A, Rock, WI

Built 1987 Load: 37.3 t ADT: 1

STH 11 WB

Good

Over: UNION PACIFIC RR

0.9M W JCT IH 90 TO E, Rock, WI

Built 2004 Load: 37.3 t ADT: 7,900

STH 11

Good

Over: TAYLOR CREEK

0.8M E JCT STH 104, Rock, WI

Built 2004 Load: 37.3 t ADT: 4,700

LRD CLEOPHAS RD

Good

Over: E FK RACCOON CREEK

1.9M E JCT CTH H, Rock, WI

Built 2006 Load: 37.3 t ADT: 104

CTH H

Good

Over: BRA COON CREEK

0.2M N JCT STH 81, Rock, WI

Built 2009 Load: 37.3 t ADT: 490

CTH H

Good

Over: BASS CREEK

4.0M N JCT STH 213, Rock, WI

Built 2017 Load: 37.3 t ADT: 803

IH 39 SB / IH 90 E

Good

Over: WIS & CALUMET RR

7.8M E JCT STH 59 TO E, Rock, WI

Built 2021 Load: 37.3 t ADT: 29,500

IH 39 NB/90 WB

Good

Over: WISCONSIN SOUTHERN RAILR

0.5M N JCT STH 26, Rock, WI

Built 2019 Load: 37.3 t ADT: 29,500

LRD GATEWAY BOULEV

Good

Over: SPRING BROOK CREEK

0.6M W JCT CTH X, Rock, WI

Built 2011 Load: 38.2 t ADT: 1,537

LRD RUGER AVENUE

Good

Over: SPRING BROOK

2.0M W JCT STH 11, Rock, WI

Built 2010 Load: 38.2 t ADT: 3,690

LRD DORNER RD

Good

Over: TAYLOR CREEK

3.2M E JCT CTH B, Rock, WI

Built 2012 Load: 38.2 t ADT: 50

LRD SCHAFFNER RD

Good

Over: BASS CREEK

1.4M E JCT STH 11, Rock, WI

Built 1994 Load: 38.9 t ADT: 38

LRD KLUG RD

Good

Over: OTTER CREEK

0.1M S JCT CTH N, Rock, WI

Built 1997 Load: 38.9 t ADT: 65

LRD FELLOWS RD

Good

Over: MARSH CREEK

1.5M N JCT CTH A, Rock, WI

Built 1997 Load: 38.9 t ADT: 170

STH 59

Good

Over: BADFISH CREEK

1.3M E JCT STH 138, Rock, WI

Built 2003 Load: 38.9 t ADT: 2,000

LRD N. EVANSVILLE-

Good

Over: BR ALLEN CREEK

0.6M N JCT CTH C, Rock, WI

Built 1996 Load: 38.9 t ADT: 328

LRD OLD HWY 92

Good

Over: BR ALLEN CREEK

1.3M N JCT STH 59, Rock, WI

Built 2004 Load: 38.9 t ADT: 214

IH 43 NB

Good

Over: CP RAILROAD AND SPRING B

0.5 MI S JCT STH 81, Rock, WI

Built 2020 Load: 38.9 t ADT: 8,350

CTH E

Good

Over: MARSH CREEK

0.7M S JCT USH 14, Rock, WI

Built 2023 Load: 39.2 t ADT: 3,148

IH 39NB/90 WB

Good

Over: CPRR / SPRING BROOK

1.9M W ILL STATE LINE, Rock, WI

Built 2020 Load: 39.5 t ADT: 29,550

LRD E MAIN ST

Good

Over: ALLEN CR

0.1M W JCT USH 14, Rock, WI

Built 2011 Load: 39.9 t ADT: 6,967

IH 39 NB/ IH 90 WB

Good

Over: WSOR RAILROAD

4.6M W JCT STH 26 TO N, Rock, WI

Built 2020 Load: 39.9 t ADT: 26,750

LRD SWIFT ST

Good

Over: SAUNDERS CREEK

0.3M N JCT STH 59, Rock, WI

Built 1992 Load: 40.5 t ADT: 1,800

LRD AVON RD

Good

Over: TAYLOR CREEK

0.3M E JCT CTH T, Rock, WI

Built 1993 Load: 40.5 t ADT: 189

LRD GRAND AVE

Good

Over: ROCK RIVER

0.1M N JCT IH 43, Rock, WI

Built 1993 Load: 40.5 t ADT: 5,100

LRD E COURT ST

Good

Over: ROCK RIVER

0.2M E JCT STH 11, Rock, WI

Built 1996 Load: 40.5 t ADT: 7,585

CTH J

Good

Over: BR ROCK RIVER

3.4M S JCT CTH O, Rock, WI

Built 1998 Load: 40.5 t ADT: 857

LRD STOUGHTON RD

Good

Over: BR SAUNDERS CREEK

0.6M N JCT STH 59, Rock, WI

Built 2003 Load: 40.5 t ADT: 642

LRD MARSH RD

Good

Over: BR BASS CREEK

0.3M S JCT CTH B, Rock, WI

Built 2004 Load: 40.5 t ADT: 214

LRD BELOIT-NEWARK

Good

Over: E FK RACCOON CREEK

1.8M E JCT CTH H, Rock, WI

Built 2003 Load: 40.5 t ADT: 795

LRD ST LAWRENCE RD

Good

Over: E FORK RACCOON CREEK

0.5M W PADDOCK RD, Rock, WI

Built 2008 Load: 40.5 t ADT: 861

LRD CRANSTON RD

Good

Over: TURTLE CREEK

0.4M N JCT IH 43, Rock, WI

Built 1964 Load: 40.5 t ADT: 15,500

LRD HAYNER RD

Good

Over: MARKHAM CREEK

2.8M S JCT STH 11, Rock, WI

Built 2012 Load: 40.8 t ADT: 203

LRD SKINNER RD

Good

Over: RACCOON CREEK

0.7M E JCT CTH K, Rock, WI

Built 2020 Load: 40.8 t ADT: 75

LRD EMERALD GROVE

Good

Over: WSOR RAILROAD

1.3M S JCT USH 14, Rock, WI

Built 2021 Load: 41.1 t ADT: 102

LRD 4TH ST

Good

Over: LENIGAN CREEK

0.5M N JCT STH 81, Rock, WI

Built 2017 Load: 41.5 t ADT: 4,700

STH 59 EB

Good

Over: WISCONSIN & SOUTHERN RR

AT WSOR, Rock, WI

Built 2009 Load: 41.8 t ADT: 4,700

STH 59 WB

Good

Over: WISCONSIN & SOUTHERN RR

AT WOSR, Rock, WI

Built 2009 Load: 41.8 t ADT: 4,700

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.