US Bridges

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

Fair

Wayne County, Michigan · In Detroit over Ramp C to · Structure no. 000000000011864

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
166,750
2020 count
Owner
State
State Highway Agency

About this bridge

I-75 over Ramp to DAVISON(M-8) is a steel stringer/multi-beam or girder carrying I-75 over Ramp to DAVISON(M-8) in Wayne County, Michigan. It was built in 1969, 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 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 166,750 vehicles a day, roughly 6% of them trucks, projected to reach 178,100 by 2040. The structure is 50 ft (15.2 m) long and 148 ft wide.

Location

Open in Google Maps
CarriesI-75
CrossesRamp to DAVISON(M-8)
LocationIn Detroit over Ramp C to
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.40758, -83.07794
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 rating75.7 US tons
Inventory rating45.3 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 span48 ft (14.6 m)
Deck width148 ft (45.1 m)
Roadway width140 ft (42.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166,750 (2020)
Projected traffic178,100 by 2040
Trucks6%
Lanes on structure8
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 to DAVISON(M-8) built?

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

What condition is I-75 over Ramp to DAVISON(M-8) 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 October 2023.

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

About 166,750 vehicles per day (2020 count), of which roughly 6% are trucks.

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

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 148 ft wide.

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

It is owned by the State Highway Agency.