US Bridges

IH 90 Wb-Ih 94 WB over Cth H

Fair

Sauk County, Wisconsin · 0.3M W JCT Sth 13 (c) · Structure no. B56003800000000

Built
1961
64 years old, rebuilt 1991
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
18,750
2022 count
Owner
State
State Highway Agency

About this bridge

IH 90 Wb-Ih 94 WB over Cth H is a concrete continuous slab carrying IH 90 Wb-Ih 94 WB over Cth H 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 18,750 vehicles a day, roughly 13% of them trucks, projected to reach 26,220 by 2043. The structure is 110 ft (33.6 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 90 Wb-Ih 94 WB
CrossesCth H
Location0.3M W JCT Sth 13 (c)
RouteInterstate 90
Coordinates43.6264, -89.80454
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length110 ft (33.6 m)
Longest span41 ft (12.6 m)
Deck width52 ft (15.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,750 (2022)
Projected traffic26,220 by 2043
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$711,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 90 Wb-Ih 94 WB over Cth H 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 Cth H in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does IH 90 Wb-Ih 94 WB over Cth H carry?

About 18,750 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is IH 90 Wb-Ih 94 WB over Cth H?

The structure is 110 ft (33.6 m) long with a longest span of 41 ft (12.6 m) and a deck 52 ft wide.

Who owns IH 90 Wb-Ih 94 WB over Cth H?

It is owned by the State Highway Agency.