US Bridges

I-75 over Ramp D to DAVISON(M-8)

Good

Wayne County, Michigan · In Detroit over N-W Rampt · Structure no. 000000000011870

Built
1969
56 years old, rebuilt 2003
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
152,325
2020 count
Owner
State
State Highway Agency

About this bridge

I-75 over Ramp D to DAVISON(M-8) is a steel stringer/multi-beam or girder carrying I-75 over Ramp D to DAVISON(M-8) in Wayne County, Michigan. It was built in 1969 and reconstructed in 2003, so it is 56 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 152,325 vehicles a day, roughly 7% of them trucks, projected to reach 161,725 by 2040. The structure is 50 ft (15.2 m) long and 150 ft wide.

Location

Open in Google Maps
CarriesI-75
CrossesRamp D to DAVISON(M-8)
LocationIn Detroit over N-W Rampt
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.41008, -83.08042
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.1 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width150 ft (45.6 m)
Roadway width143 ft (43.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic152,325 (2020)
Projected traffic161,725 by 2040
Trucks7%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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-75 over Ramp D to DAVISON(M-8) built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2003.

What condition is I-75 over Ramp D to DAVISON(M-8) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I-75 over Ramp D to DAVISON(M-8) carry?

About 152,325 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I-75 over Ramp D to DAVISON(M-8)?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 150 ft wide.

Who owns I-75 over Ramp D to DAVISON(M-8)?

It is owned by the State Highway Agency.