US Bridges

IH Ramp IH-794 WB over Lrd N Harbor DR

Fair

Milwaukee County, Wisconsin · .5M N Chicago St. · Structure no. B400400006D0000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
317 ft
4 main spans
Daily traffic
5,900
2022 count
Owner
State
State Highway Agency

About this bridge

IH Ramp IH-794 WB over Lrd N Harbor DR is a prestressed concrete continuous box beam or girders - multiple carrying IH Ramp IH-794 WB over Lrd N Harbor DR in Milwaukee County, Wisconsin. It was built in 1975, so it is 50 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 5,900 vehicles a day, roughly 1% of them trucks, projected to reach 17,593 by 2043. The structure is 317 ft (96.7 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH Ramp IH-794 WB
CrossesLrd N Harbor DR
Location.5M N Chicago St.
RouteInterstate 794
Coordinates43.03385, -87.89975
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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 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 rating61.2 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length317 ft (96.7 m)
Longest span106 ft (32.2 m)
Deck width54 ft (16.6 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deck21 ft (6.3 m)

Traffic and service

Average daily traffic5,900 (2022)
Projected traffic17,593 by 2043
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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$1.9 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH Ramp IH-794 WB over Lrd N Harbor DR built?

It was built in 1975, making it 50 years old in 2025.

What condition is IH Ramp IH-794 WB over Lrd N Harbor DR 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 June 2024.

How much traffic does IH Ramp IH-794 WB over Lrd N Harbor DR carry?

About 5,900 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is IH Ramp IH-794 WB over Lrd N Harbor DR?

The structure is 317 ft (96.7 m) long with a longest span of 106 ft (32.2 m) and a deck 54 ft wide.

Who owns IH Ramp IH-794 WB over Lrd N Harbor DR?

It is owned by the State Highway Agency.