US Bridges

IH 43 SB over IH N-E Ramp

Good

Milwaukee County, Wisconsin · 0.5M S Wisconsin Av · Structure no. B40121100010000

Built
2008
17 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
814 ft
5 main spans
Daily traffic
38,400
2022 count
Owner
State
State Highway Agency

About this bridge

IH 43 SB over IH N-E Ramp is a steel continuous stringer/multi-beam or girder carrying IH 43 SB over IH N-E Ramp in Milwaukee County, Wisconsin. It was built in 2008, so it is 17 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 38,400 vehicles a day, roughly 9% of them trucks, projected to reach 42,200 by 2041. The structure is 814 ft (248 m) long and 67 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesIH 43 SB
CrossesIH N-E Ramp
Location0.5M S Wisconsin Av
RouteInterstate 43
Coordinates43.03492, -87.92398
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating53.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length814 ft (248 m)
Longest span194 ft (59.1 m)
Deck width67 ft (20.3 m)
Roadway width64 ft (19.4 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic38,400 (2022)
Projected traffic42,200 by 2041
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

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 43 SB over IH N-E Ramp built?

It was built in 2008, making it 17 years old in 2025.

What condition is IH 43 SB over IH N-E Ramp 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 June 2022.

How much traffic does IH 43 SB over IH N-E Ramp carry?

About 38,400 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is IH 43 SB over IH N-E Ramp?

The structure is 814 ft (248 m) long with a longest span of 194 ft (59.1 m) and a deck 67 ft wide.

Who owns IH 43 SB over IH N-E Ramp?

It is owned by the State Highway Agency.