US Bridges

Sth 11 over Shullsburg Branch

Fair

Lafayette County, Wisconsin · 0.8M E Cth I to N · Structure no. B33010600000000

Built
2005
20 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
144 ft
3 main spans
Daily traffic
2,900
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 11 over Shullsburg Branch is a concrete continuous slab carrying Sth 11 over Shullsburg Branch in Lafayette County, Wisconsin. It was built in 2005, so it is 20 years old, younger 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 2,900 vehicles a day, projected to reach 4,000 by 2042. The structure is 144 ft (43.9 m) long and 47 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

Location

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CarriesSth 11
CrossesShullsburg Branch
Location0.8M E Cth I to N
RouteState Highway 11
CountyLafayette County
StateWisconsin
Coordinates42.56177, -90.33179
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span57 ft (17.4 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic4,000 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 11 over Shullsburg Branch built?

It was built in 2005, making it 20 years old in 2025.

What condition is Sth 11 over Shullsburg 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 December 2023.

How much traffic does Sth 11 over Shullsburg Branch carry?

About 2,900 vehicles per day (2022 count).

How long is Sth 11 over Shullsburg Branch?

The structure is 144 ft (43.9 m) long with a longest span of 57 ft (17.4 m) and a deck 47 ft wide.

Who owns Sth 11 over Shullsburg Branch?

It is owned by the State Highway Agency.