US Bridges

I-75S/I-94E Ramp over I-94 Relief

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011833

Built
1962
63 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
5 main spans
Daily traffic
23,493
2022 count
Owner
State
State Highway Agency

About this bridge

I-75S/I-94E Ramp over I-94 Relief is a steel stringer/multi-beam or girder carrying I-75S/I-94E Ramp over I-94 Relief in Wayne County, Michigan. It was built in 1962, so it is 63 years old, older than the Michigan average of 48.3 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 23,493 vehicles a day, roughly 3% of them trucks, projected to reach 23,493 by 2022. The structure is 360 ft (109.7 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesI-75S/I-94E Ramp
CrossesI-94 Relief
LocationIn Detroit
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.3694, -83.0563
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span77 ft (23.4 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,493 (2022)
Projected traffic23,493 by 2022
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesOther
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75S/I-94E Ramp over I-94 Relief built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-75S/I-94E Ramp over I-94 Relief 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 April 2024.

How much traffic does I-75S/I-94E Ramp over I-94 Relief carry?

About 23,493 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is I-75S/I-94E Ramp over I-94 Relief?

The structure is 360 ft (109.7 m) long with a longest span of 77 ft (23.4 m) and a deck 29 ft wide.

Who owns I-75S/I-94E Ramp over I-94 Relief?

It is owned by the State Highway Agency.