US Bridges

I-75 & Ramps C&d over M-8 Davison & Servic Rds

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011867

Built
1969
56 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
261 ft
4 main spans
Daily traffic
152,325
2020 count
Owner
State
State Highway Agency

About this bridge

I-75 & Ramps C&d over M-8 Davison & Servic Rds is a steel continuous stringer/multi-beam or girder carrying I-75 & Ramps C&d over M-8 Davison & Servic Rds 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 5 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 152,325 vehicles a day, roughly 7% of them trucks, projected to reach 161,725 by 2040. The structure is 261 ft (79.5 m) long and 213 ft wide.

Location

Open in Google Maps
CarriesI-75 & Ramps C&d
CrossesM-8 Davison & Servic Rds
LocationIn Detroit
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.40864, -83.07908
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length261 ft (79.5 m)
Longest span64 ft (19.5 m)
Deck width213 ft (64.9 m)
Roadway width210 ft (63.9 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic152,325 (2020)
Projected traffic161,725 by 2040
Trucks7%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 & Ramps C&d over M-8 Davison & Servic Rds built?

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

What condition is I-75 & Ramps C&d over M-8 Davison & Servic Rds 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 2023.

How much traffic does I-75 & Ramps C&d over M-8 Davison & Servic Rds carry?

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

How long is I-75 & Ramps C&d over M-8 Davison & Servic Rds?

The structure is 261 ft (79.5 m) long with a longest span of 64 ft (19.5 m) and a deck 213 ft wide.

Who owns I-75 & Ramps C&d over M-8 Davison & Servic Rds?

It is owned by the State Highway Agency.