US Bridges

Lrd S River RD over Br Rock River

Fair

Rock County, Wisconsin · 1.3M E JCT Cth D · Structure no. P53091500000000

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
21 ft
3 main spans
Daily traffic
740
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd S River RD over Br Rock River is a concrete culvert carrying Lrd S River RD over Br Rock River in Rock County, Wisconsin. It was built in 1970, so it is 55 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 740 vehicles a day, projected to reach 800 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesLrd S River RD
CrossesBr Rock River
Location1.3M E JCT Cth D
RouteCity Street 0
CountyRock County
StateWisconsin
Coordinates42.62569, -89.06356
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length21 ft (6.4 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic740 (2024)
Projected traffic800 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd S River RD over Br Rock River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Lrd S River RD over Br Rock River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Lrd S River RD over Br Rock River carry?

About 740 vehicles per day (2024 count).

How long is Lrd S River RD over Br Rock River?

The structure is 21 ft (6.4 m) long with a longest span of 5 ft (1.5 m).

Who owns Lrd S River RD over Br Rock River?

It is owned by the Town or Township Highway Agency.