US Bridges

IH 41 NB over Sth 172 WB

Good

Brown County, Wisconsin · Over Sth 172 WB · Structure no. B05062700000000

Built
2015
10 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
192 ft
2 main spans
Daily traffic
41,600
2023 count
Owner
State
State Highway Agency

About this bridge

IH 41 NB over Sth 172 WB is a prestressed concrete stringer/multi-beam or girder carrying IH 41 NB over Sth 172 WB in Brown County, Wisconsin. It was built in 2015, so it is 10 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 34,800 by 2042. The structure is 192 ft (58.6 m) long and 68 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 41 NB
CrossesSth 172 WB
LocationOver Sth 172 WB
RouteInterstate 41
Coordinates44.48461, -88.08029
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.
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 rating55 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length192 ft (58.6 m)
Longest span108 ft (32.9 m)
Deck width68 ft (20.6 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,600 (2023)
Projected traffic34,800 by 2042
Trucks9%
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 41 NB over Sth 172 WB built?

It was built in 2015, making it 10 years old in 2025.

What condition is IH 41 NB over Sth 172 WB 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 NB over Sth 172 WB carry?

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

How long is IH 41 NB over Sth 172 WB?

The structure is 192 ft (58.6 m) long with a longest span of 108 ft (32.9 m) and a deck 68 ft wide.

Who owns IH 41 NB over Sth 172 WB?

It is owned by the State Highway Agency.