US Bridges

IH S-W Ramp IH 43 over IH 43 & IH 794

Fair

Milwaukee County, Wisconsin · 1.8 MI N JCT Sth 59 · Structure no. B40112300010000

Built
2008
17 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
1,425 ft
7 main spans
Daily traffic
21,600
2022 count
Owner
State
State Highway Agency

About this bridge

IH S-W Ramp IH 43 over IH 43 & IH 794 is a steel continuous box beam or girders - single or spread carrying IH S-W Ramp IH 43 over IH 43 & IH 794 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 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 21,600 vehicles a day, roughly 9% of them trucks, projected to reach 20,300 by 2042. The structure is 1,425 ft (434.3 m) long and 34 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesIH S-W Ramp IH 43
CrossesIH 43 & IH 794
Location1.8 MI N JCT Sth 59
RouteInterstate 94
CountyMilwaukee County
StateWisconsin
Coordinates43.03526, -87.9234
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 25 or greater
Structure length1,425 ft (434.3 m)
Longest span225 ft (68.6 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,600 (2022)
Projected traffic20,300 by 2042
Trucks9%
Lanes on structure1
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 S-W Ramp IH 43 over IH 43 & IH 794 built?

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

What condition is IH S-W Ramp IH 43 over IH 43 & IH 794 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 September 2023.

How much traffic does IH S-W Ramp IH 43 over IH 43 & IH 794 carry?

About 21,600 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is IH S-W Ramp IH 43 over IH 43 & IH 794?

The structure is 1,425 ft (434.3 m) long with a longest span of 225 ft (68.6 m) and a deck 34 ft wide.

Who owns IH S-W Ramp IH 43 over IH 43 & IH 794?

It is owned by the State Highway Agency.