US Bridges

IH 39 NB / IH 90 W over Turtle Creek

Good

Rock County, Wisconsin · 0.5M W JCT Cth S to E · Structure no. B53031500000000

Built
2018
7 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
163 ft
3 main spans
Daily traffic
26,750
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39 NB / IH 90 W over Turtle Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 39 NB / IH 90 W over Turtle Creek in Rock County, Wisconsin. It was built in 2018, so it is 7 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 26,750 vehicles a day, projected to reach 40,650 by 2040. The structure is 163 ft (49.8 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesIH 39 NB / IH 90 W
CrossesTurtle Creek
Location0.5M W JCT Cth S to E
RouteInterstate 39
CountyRock County
StateWisconsin
Coordinates42.56535, -88.97936
Functional classRural Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length163 ft (49.8 m)
Longest span59 ft (18 m)
Deck width71 ft (21.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,750 (2022)
Projected traffic40,650 by 2040
Trucks0%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 39 NB / IH 90 W over Turtle Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is IH 39 NB / IH 90 W 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 2024.

How much traffic does IH 39 NB / IH 90 W over Turtle Creek carry?

About 26,750 vehicles per day (2022 count).

How long is IH 39 NB / IH 90 W over Turtle Creek?

The structure is 163 ft (49.8 m) long with a longest span of 59 ft (18 m) and a deck 71 ft wide.

Who owns IH 39 NB / IH 90 W over Turtle Creek?

It is owned by the State Highway Agency.