US Bridges

IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD

Good

Milwaukee County, Wisconsin · 2.3M N JCT IH 894 · Structure no. B40087500000000

Built
2022
3 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
887 ft
8 main spans
Daily traffic
81,500
2022 count
Owner
State
State Highway Agency

About this bridge

IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD in Milwaukee County, Wisconsin. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 81,500 vehicles a day, projected to reach 90,315 by 2043. The structure is 887 ft (270.4 m) long and 79 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesIH 41/USH 45 Nb-Zo
CrossesSth 100/MAYFAIR RD
Location2.3M N JCT IH 894
RouteInterstate 41
CountyMilwaukee County
StateWisconsin
Coordinates43.05486, -88.0448
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 44 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length887 ft (270.4 m)
Longest span135 ft (41.1 m)
Deck width79 ft (24 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deck22 ft (6.7 m)

Traffic and service

Average daily traffic81,500 (2022)
Projected traffic90,315 by 2043
Trucks0%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD built?

It was built in 2022, making it 3 years old in 2025.

What condition is IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD 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 December 2024.

How much traffic does IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD carry?

About 81,500 vehicles per day (2022 count).

How long is IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD?

The structure is 887 ft (270.4 m) long with a longest span of 135 ft (41.1 m) and a deck 79 ft wide.

Who owns IH 41/USH 45 Nb-Zo over Sth 100/MAYFAIR RD?

It is owned by the State Highway Agency.