US Bridges

Sth 11 over Turtle Creek

Good

Walworth County, Wisconsin · 1.7M E JCT Sth 89 · Structure no. B64007800000000

Built
1992
33 years old
Condition
Good
inspected August 2021
Type
Slab
Concrete Continuous
Length
70 ft
2 main spans
Daily traffic
2,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 11 over Turtle Creek is a concrete continuous slab carrying Sth 11 over Turtle Creek in Walworth County, Wisconsin. It was built in 1992, so it is 33 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 2,600 vehicles a day, roughly 6% of them trucks, projected to reach 3,120 by 2042. The structure is 70 ft (21.2 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSth 11
CrossesTurtle Creek
Location1.7M E JCT Sth 89
RouteState Highway 11
CountyWalworth County
StateWisconsin
Coordinates42.64316, -88.71236
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating66.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length70 ft (21.2 m)
Longest span34 ft (10.5 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2022)
Projected traffic3,120 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 Turtle Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Sth 11 over Turtle Creek 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 August 2021.

How much traffic does Sth 11 over Turtle Creek carry?

About 2,600 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Sth 11 over Turtle Creek?

The structure is 70 ft (21.2 m) long with a longest span of 34 ft (10.5 m) and a deck 46 ft wide.

Who owns Sth 11 over Turtle Creek?

It is owned by the State Highway Agency.