US Bridges

IH 90 WB over Sth 16

Fair

Monroe County, Wisconsin · 3.9M W JCT Sth 131 to S · Structure no. B41011200000000

Built
1968
57 years old, rebuilt 2002
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
3 main spans
Daily traffic
8,950
2022 count
Owner
State
State Highway Agency

About this bridge

IH 90 WB over Sth 16 is a steel continuous stringer/multi-beam or girder carrying IH 90 WB over Sth 16 in Monroe County, Wisconsin. It was built in 1968 and reconstructed in 2002, so it is 57 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 8,950 vehicles a day, roughly 17% of them trucks, projected to reach 12,139 by 2043. The structure is 200 ft (61 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 90 WB
CrossesSth 16
Location3.9M W JCT Sth 131 to S
RouteInterstate 90
Coordinates43.94482, -90.57591
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length200 ft (61 m)
Longest span76 ft (23.2 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,950 (2022)
Projected traffic12,139 by 2043
Trucks17%
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 Sth 16 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2002.

What condition is IH 90 WB over Sth 16 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 August 2024.

How much traffic does IH 90 WB over Sth 16 carry?

About 8,950 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is IH 90 WB over Sth 16?

The structure is 200 ft (61 m) long with a longest span of 76 ft (23.2 m) and a deck 42 ft wide.

Who owns IH 90 WB over Sth 16?

It is owned by the State Highway Agency.