US Bridges

IH 41 SB over Sth 172 EB

Good

Brown County, Wisconsin · 1.7 MI S JCT Lombardi Ave · Structure no. B05062400000000

Built
2016
9 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
171 ft
2 main spans
Daily traffic
41,600
2023 count
Owner
State
State Highway Agency

About this bridge

IH 41 SB over Sth 172 EB is a prestressed concrete stringer/multi-beam or girder carrying IH 41 SB over Sth 172 EB in Brown County, Wisconsin. It was built in 2016, so it is 9 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 41,600 vehicles a day, roughly 9% of them trucks, projected to reach 47,300 by 2042. The structure is 171 ft (52.2 m) long and 92 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIH 41 SB
CrossesSth 172 EB
Location1.7 MI S JCT Lombardi Ave
RouteInterstate 41
Coordinates44.48387, -88.08076
Functional classUrban 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.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length171 ft (52.2 m)
Longest span97 ft (29.6 m)
Deck width92 ft (27.9 m)
Roadway width89 ft (27 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,600 (2023)
Projected traffic47,300 by 2042
Trucks9%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 41 SB over Sth 172 EB built?

It was built in 2016, making it 9 years old in 2025.

What condition is IH 41 SB over Sth 172 EB 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 October 2023.

How much traffic does IH 41 SB over Sth 172 EB carry?

About 41,600 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is IH 41 SB over Sth 172 EB?

The structure is 171 ft (52.2 m) long with a longest span of 97 ft (29.6 m) and a deck 92 ft wide.

Who owns IH 41 SB over Sth 172 EB?

It is owned by the State Highway Agency.