US Bridges

Sth 140 over Turtle Creek

Good

Rock County, Wisconsin · 1.7M N JCT IH 43 to N · Structure no. B53022300000000

Built
2005
20 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
2,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 140 over Turtle Creek is a concrete continuous slab carrying Sth 140 over Turtle Creek in Rock 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 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 11% of them trucks, projected to reach 3,120 by 2042. The structure is 142 ft (43.4 m) long and 47 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesSth 140
CrossesTurtle Creek
Location1.7M N JCT IH 43 to N
RouteState Highway 140
CountyRock County
StateWisconsin
Coordinates42.59667, -88.86333
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 inspectionNovember 2023
Inspection intervalevery 24 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 rating79.1 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.4 m)
Longest span56 ft (17.1 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2022)
Projected traffic3,120 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 140 over Turtle Creek built?

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

What condition is Sth 140 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 November 2023.

How much traffic does Sth 140 over Turtle Creek carry?

About 2,600 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Sth 140 over Turtle Creek?

The structure is 142 ft (43.4 m) long with a longest span of 56 ft (17.1 m) and a deck 47 ft wide.

Who owns Sth 140 over Turtle Creek?

It is owned by the State Highway Agency.