US Bridges

I-75 NB over M-10

Fair

Wayne County, Michigan · In Detroit over US-10 · Structure no. 000000000011768

Built
1970
55 years old, rebuilt 1999
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
240 ft
2 main spans
Daily traffic
43,891
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over M-10 is a steel stringer/multi-beam or girder carrying I-75 NB over M-10 in Wayne County, Michigan. It was built in 1970 and reconstructed in 1999, 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 43,891 vehicles a day, roughly 10% of them trucks, projected to reach 131,120 by 2025. The structure is 240 ft (73.1 m) long and 61 ft wide.

Location

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CarriesI-75 NB
CrossesM-10
LocationIn Detroit over US-10
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.33531, -83.064
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.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length240 ft (73.1 m)
Longest span124 ft (37.8 m)
Deck width61 ft (18.7 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,891 (2007)
Projected traffic131,120 by 2025
Trucks10%
Lanes on structure3
Traffic directionOne-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 NB over M-10 built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1999.

What condition is I-75 NB over M-10 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 NB over M-10 carry?

About 43,891 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is I-75 NB over M-10?

The structure is 240 ft (73.1 m) long with a longest span of 124 ft (37.8 m) and a deck 61 ft wide.

Who owns I-75 NB over M-10?

It is owned by the State Highway Agency.