US Bridges

M-10 N-W Ramp over I-75 & Exit Ramps

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011772

Built
1970
55 years old, rebuilt 1998
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
402 ft
6 main spans
Daily traffic
11,370
1982 count
Owner
State
State Highway Agency

About this bridge

M-10 N-W Ramp over I-75 & Exit Ramps is a steel stringer/multi-beam or girder carrying M-10 N-W Ramp over I-75 & Exit Ramps 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 11,370 vehicles a day, roughly 3% of them trucks, projected to reach 13,076 by 2002. The structure is 402 ft (122.5 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesM-10 N-W Ramp
CrossesI-75 & Exit Ramps
LocationIn Detroit
RouteState Highway 10
CountyWayne County
StateMichigan
Coordinates42.33517, -83.06238
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating100 US tons
Inventory rating59.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length402 ft (122.5 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,370 (1982)
Projected traffic13,076 by 2002
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 M-10 N-W Ramp over I-75 & Exit Ramps built?

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

What condition is M-10 N-W Ramp over I-75 & Exit Ramps 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 M-10 N-W Ramp over I-75 & Exit Ramps carry?

About 11,370 vehicles per day (1982 count), of which roughly 3% are trucks.

How long is M-10 N-W Ramp over I-75 & Exit Ramps?

The structure is 402 ft (122.5 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns M-10 N-W Ramp over I-75 & Exit Ramps?

It is owned by the State Highway Agency.