US Bridges

Lrd Red Rock RD over Thunder Branch

Good

Lafayette County, Wisconsin · 2.1M N JCT Cth K · Structure no. P33016400000000

Built
1981
44 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
88
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Red Rock RD over Thunder Branch is a concrete culvert carrying Lrd Red Rock RD over Thunder Branch in Lafayette County, Wisconsin. It was built in 1981, so it is 44 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 88 vehicles a day, projected to reach 96 by 2043. The structure is 24 ft (7.3 m) long and 34 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesLrd Red Rock RD
CrossesThunder Branch
Location2.1M N JCT Cth K
RouteCity Street 0
Coordinates42.64565, -90.05602
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width34 ft (10.3 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic96 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Red Rock RD over Thunder Branch built?

It was built in 1981, making it 44 years old in 2025.

What condition is Lrd Red Rock RD over Thunder Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Lrd Red Rock RD over Thunder Branch carry?

About 88 vehicles per day (2022 count).

How long is Lrd Red Rock RD over Thunder Branch?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns Lrd Red Rock RD over Thunder Branch?

It is owned by the Town or Township Highway Agency.