US Bridges

IH 90 Wb-Ih 94 WB over Sth 23

Good

Sauk County, Wisconsin · 2.6M W JCT Ush 12 to E · Structure no. B56004500000000

Built
1961
64 years old, rebuilt 1991
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
202 ft
4 main spans
Daily traffic
23,500
2021 count
Owner
State
State Highway Agency

About this bridge

IH 90 Wb-Ih 94 WB over Sth 23 is a prestressed concrete stringer/multi-beam or girder carrying IH 90 Wb-Ih 94 WB over Sth 23 in Sauk County, Wisconsin. It was built in 1961 and reconstructed in 1991, so it is 64 years old, older 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 23,500 vehicles a day, roughly 13% of them trucks, projected to reach 28,200 by 2041. The structure is 202 ft (61.6 m) long and 43 ft wide.

CarriesIH 90 Wb-Ih 94 WB
CrossesSth 23
Location2.6M W JCT Ush 12 to E
RouteInterstate 90
Coordinates43.58861, -89.81024
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length202 ft (61.6 m)
Longest span61 ft (18.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,500 (2021)
Projected traffic28,200 by 2041
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 90 Wb-Ih 94 WB over Sth 23 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1991.

What condition is IH 90 Wb-Ih 94 WB over Sth 23 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 June 2023.

How much traffic does IH 90 Wb-Ih 94 WB over Sth 23 carry?

About 23,500 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is IH 90 Wb-Ih 94 WB over Sth 23?

The structure is 202 ft (61.6 m) long with a longest span of 61 ft (18.6 m) and a deck 43 ft wide.

Who owns IH 90 Wb-Ih 94 WB over Sth 23?

It is owned by the State Highway Agency.