US Bridges

Sth 11 over Unnamed Tributary

Good

Rock County, Wisconsin · 1.5 M E JCT Sth 213 · Structure no. B53038100000000

Built
2022
3 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
5,317
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 11 over Unnamed Tributary is a concrete slab carrying Sth 11 over Unnamed Tributary in Rock County, Wisconsin. It was built in 2022, so it is 3 years old, younger 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 5,317 vehicles a day, projected to reach 6,380 by 2040. The structure is 43 ft (13.2 m) long and 47 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSth 11
CrossesUnnamed Tributary
Location1.5 M E JCT Sth 213
RouteState Highway 11
Coordinates42.64222, -89.23694
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length43 ft (13.2 m)
Longest span40 ft (12.2 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,317 (2022)
Projected traffic6,380 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 Unnamed Tributary built?

It was built in 2022, making it 3 years old in 2025.

What condition is Sth 11 over Unnamed Tributary 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 Sth 11 over Unnamed Tributary carry?

About 5,317 vehicles per day (2022 count).

How long is Sth 11 over Unnamed Tributary?

The structure is 43 ft (13.2 m) long with a longest span of 40 ft (12.2 m) and a deck 47 ft wide.

Who owns Sth 11 over Unnamed Tributary?

It is owned by the State Highway Agency.