US Bridges

IH Ramp IH 43 SB/9 over IH 41 SB

Fair

Milwaukee County, Wisconsin · 1.5 MI N JCT Sth 119 · Structure no. B40082400000000

Built
2012
13 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
1 main span
Daily traffic
3,700
2021 count
Owner
State
State Highway Agency

About this bridge

IH Ramp IH 43 SB/9 over IH 41 SB is a prestressed concrete stringer/multi-beam or girder carrying IH Ramp IH 43 SB/9 over IH 41 SB in Milwaukee County, Wisconsin. It was built in 2012, so it is 13 years old, younger 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 3,700 vehicles a day, projected to reach 4,440 by 2041. The structure is 156 ft (47.5 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesIH Ramp IH 43 SB/9
CrossesIH 41 SB
Location1.5 MI N JCT Sth 119
RouteInterstate 43
CountyMilwaukee County
StateWisconsin
Coordinates42.96114, -87.93526
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length156 ft (47.5 m)
Longest span152 ft (46.2 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2021)
Projected traffic4,440 by 2041
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$969,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH Ramp IH 43 SB/9 over IH 41 SB built?

It was built in 2012, making it 13 years old in 2025.

What condition is IH Ramp IH 43 SB/9 over IH 41 SB 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 July 2024.

How much traffic does IH Ramp IH 43 SB/9 over IH 41 SB carry?

About 3,700 vehicles per day (2021 count).

How long is IH Ramp IH 43 SB/9 over IH 41 SB?

The structure is 156 ft (47.5 m) long with a longest span of 152 ft (46.2 m) and a deck 30 ft wide.

Who owns IH Ramp IH 43 SB/9 over IH 41 SB?

It is owned by the State Highway Agency.