US Bridges

I-75 SB Ent Rmp over I-75 NB Ent Ramp

Fair

Wayne County, Michigan · In Detroit over Lodge · Structure no. 000000000011774

Built
1970
55 years old, rebuilt 1998
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
1 main span
Daily traffic
8,093
2010 count
Owner
State
State Highway Agency

About this bridge

I-75 SB Ent Rmp over I-75 NB Ent Ramp is a steel stringer/multi-beam or girder carrying I-75 SB Ent Rmp over I-75 NB Ent Ramp in Wayne County, Michigan. It was built in 1970 and reconstructed in 1998, so it is 55 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 8,093 vehicles a day, roughly 3% of them trucks, projected to reach 8,902 by 2025. The structure is 91 ft (27.7 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesI-75 SB Ent Rmp
CrossesI-75 NB Ent Ramp
LocationIn Detroit over Lodge
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.33626, -83.06165
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.6 US tons
Inventory rating59.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span91 ft (27.7 m)
Deck width29 ft (8.7 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,093 (2010)
Projected traffic8,902 by 2025
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 SB Ent Rmp over I-75 NB Ent Ramp built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1998.

What condition is I-75 SB Ent Rmp over I-75 NB Ent Ramp 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 May 2023.

How much traffic does I-75 SB Ent Rmp over I-75 NB Ent Ramp carry?

About 8,093 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is I-75 SB Ent Rmp over I-75 NB Ent Ramp?

The structure is 91 ft (27.7 m) long with a longest span of 91 ft (27.7 m) and a deck 29 ft wide.

Who owns I-75 SB Ent Rmp over I-75 NB Ent Ramp?

It is owned by the State Highway Agency.