US Bridges

IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7

Fair

Milwaukee County, Wisconsin · 1.0 MI E JCT IH 43 · Structure no. B400400007A0000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
403 ft
4 main spans
Daily traffic
2,600
2022 count
Owner
State
State Highway Agency

About this bridge

IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7 is a prestressed concrete continuous box beam or girders - multiple carrying IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7 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 5 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 2,600 vehicles a day, roughly 1% of them trucks, projected to reach 39,965 by 2043. The structure is 403 ft (122.7 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIH Ramp IH 794WB
CrossesIH Ramp Jackson St-Ih 7
Location1.0 MI E JCT IH 43
RouteInterstate 794
CountyMilwaukee County
StateWisconsin
Coordinates43.03624, -87.90355
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length403 ft (122.7 m)
Longest span115 ft (35.1 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2022)
Projected traffic39,965 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$2.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7 built?

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

What condition is IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7 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 794WB over IH Ramp Jackson St-Ih 7 carry?

About 2,600 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7?

The structure is 403 ft (122.7 m) long with a longest span of 115 ft (35.1 m) and a deck 27 ft wide.

Who owns IH Ramp IH 794WB over IH Ramp Jackson St-Ih 7?

It is owned by the State Highway Agency.