US Bridges

IH 90 WB over Cth M

Good

Monroe County, Wisconsin · 1.9M W JCT Sth 131 to S · Structure no. B41029400000000

Built
2019
6 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
8,150
2021 count
Owner
State
State Highway Agency

About this bridge

IH 90 WB over Cth M is a concrete continuous slab carrying IH 90 WB over Cth M in Monroe County, Wisconsin. It was built in 2019, so it is 6 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 8,150 vehicles a day, projected to reach 20,500 by 2043. The structure is 123 ft (37.4 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 90 WB
CrossesCth M
Location1.9M W JCT Sth 131 to S
RouteInterstate 90
Coordinates43.95213, -90.5375
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.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length123 ft (37.4 m)
Longest span55 ft (16.9 m)
Deck width58 ft (17.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,150 (2021)
Projected traffic20,500 by 2043
Trucks0%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 90 WB over Cth M built?

It was built in 2019, making it 6 years old in 2025.

What condition is IH 90 WB over Cth M 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 2024.

How much traffic does IH 90 WB over Cth M carry?

About 8,150 vehicles per day (2021 count).

How long is IH 90 WB over Cth M?

The structure is 123 ft (37.4 m) long with a longest span of 55 ft (16.9 m) and a deck 58 ft wide.

Who owns IH 90 WB over Cth M?

It is owned by the State Highway Agency.