US Bridges

IH 94 Wb-Ih 43 NB over South Menomonee Canal

Fair

Milwaukee County, Wisconsin · 5.5M N JCT IH 894 to W · Structure no. B40028527E20000

Built
1968
57 years old, rebuilt 1989
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
545 ft
4 main spans
Daily traffic
78,000
2022 count
Owner
State
State Highway Agency

About this bridge

IH 94 Wb-Ih 43 NB over South Menomonee Canal is a steel continuous girder and floorbeam system carrying IH 94 Wb-Ih 43 NB over South Menomonee Canal in Milwaukee County, Wisconsin. It was built in 1968 and reconstructed in 1989, so it is 57 years old, older 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 78,000 vehicles a day, roughly 9% of them trucks, projected to reach 145,000 by 2043. The structure is 545 ft (166.1 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 94 Wb-Ih 43 NB
CrossesSouth Menomonee Canal
Location5.5M N JCT IH 894 to W
RouteInterstate 43
Coordinates43.02771, -87.92222
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating42.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length545 ft (166.1 m)
Longest span193 ft (58.8 m)
Deck width64 ft (19.6 m)
Roadway width61 ft (18.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,000 (2022)
Projected traffic145,000 by 2043
Trucks9%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was IH 94 Wb-Ih 43 NB over South Menomonee Canal built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1989.

What condition is IH 94 Wb-Ih 43 NB over South Menomonee Canal 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 2024.

How much traffic does IH 94 Wb-Ih 43 NB over South Menomonee Canal carry?

About 78,000 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is IH 94 Wb-Ih 43 NB over South Menomonee Canal?

The structure is 545 ft (166.1 m) long with a longest span of 193 ft (58.8 m) and a deck 64 ft wide.

Who owns IH 94 Wb-Ih 43 NB over South Menomonee Canal?

It is owned by the State Highway Agency.