US Bridges

Lrd Spring ST over Bonner Branch

Fair

Lafayette County, Wisconsin · 0.1M S JCT Cth G · Structure no. B33001800000000

Built
1981
44 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
129
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Spring ST over Bonner Branch is a concrete continuous culvert carrying Lrd Spring ST over Bonner 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 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 129 vehicles a day, projected to reach 141 by 2043. The structure is 39 ft (11.8 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLrd Spring ST
CrossesBonner Branch
Location0.1M S JCT Cth G
RouteCity Street 0
CountyLafayette County
StateWisconsin
Coordinates42.7393, -90.33633
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span8 ft (2.4 m)
Deck width39 ft (11.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129 (2022)
Projected traffic141 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Spring ST over Bonner Branch built?

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

What condition is Lrd Spring ST over Bonner Branch 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 November 2024.

How much traffic does Lrd Spring ST over Bonner Branch carry?

About 129 vehicles per day (2022 count).

How long is Lrd Spring ST over Bonner Branch?

The structure is 39 ft (11.8 m) long with a longest span of 8 ft (2.4 m) and a deck 39 ft wide.

Who owns Lrd Spring ST over Bonner Branch?

It is owned by the City or Municipal Highway Agency.