US Bridges

IH 794 EB over Lrd N Jackson ST

Fair

Milwaukee County, Wisconsin · 1.1 MI E JCT IH-43 · Structure no. B400400003C0000

Built
1974
51 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
280 ft
4 main spans
Daily traffic
24,050
2023 count
Owner
State
State Highway Agency

About this bridge

IH 794 EB over Lrd N Jackson ST is a prestressed concrete continuous box beam or girders - multiple carrying IH 794 EB over Lrd N Jackson ST in Milwaukee County, Wisconsin. It was built in 1974, so it is 51 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 24,050 vehicles a day, roughly 1% of them trucks, projected to reach 20,680 by 2043. The structure is 280 ft (85.3 m) long and 111 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 794 EB
CrossesLrd N Jackson ST
Location1.1 MI E JCT IH-43
RouteInterstate 794
Coordinates43.03537, -87.904
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.
Substructure8 Very GoodNo problems noted.
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 length280 ft (85.3 m)
Longest span120 ft (36.6 m)
Deck width111 ft (33.8 m)
Roadway width107 ft (32.6 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic24,050 (2023)
Projected traffic20,680 by 2043
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$1.7 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 794 EB over Lrd N Jackson ST built?

It was built in 1974, making it 51 years old in 2025.

What condition is IH 794 EB over Lrd N Jackson ST 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 794 EB over Lrd N Jackson ST carry?

About 24,050 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is IH 794 EB over Lrd N Jackson ST?

The structure is 280 ft (85.3 m) long with a longest span of 120 ft (36.6 m) and a deck 111 ft wide.

Who owns IH 794 EB over Lrd N Jackson ST?

It is owned by the State Highway Agency.