US Bridges

I-75 N to M-10 Rmp over M-10 to I-75N Ramp

Poor

Wayne County, Michigan · In Detroit · Structure no. 000000000011773

Built
1970
55 years old, rebuilt 1998
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
192 ft
3 main spans
Daily traffic
17,500
1988 count
Owner
State
State Highway Agency

About this bridge

I-75 N to M-10 Rmp over M-10 to I-75N Ramp is a steel stringer/multi-beam or girder carrying I-75 N to M-10 Rmp over M-10 to I-75N Ramp 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 17,500 vehicles a day, roughly 3% of them trucks, projected to reach 20,125 by 2008. The structure is 192 ft (58.5 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesI-75 N to M-10 Rmp
CrossesM-10 to I-75N Ramp
LocationIn Detroit
RouteInterstate 75
CountyWayne County
StateMichigan
Coordinates42.33564, -83.06132
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 19 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating76.1 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span92 ft (28 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,500 (1988)
Projected traffic20,125 by 2008
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 I-75 N to M-10 Rmp over M-10 to I-75N Ramp built?

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

What condition is I-75 N to M-10 Rmp over M-10 to I-75N Ramp in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does I-75 N to M-10 Rmp over M-10 to I-75N Ramp carry?

About 17,500 vehicles per day (1988 count), of which roughly 3% are trucks.

How long is I-75 N to M-10 Rmp over M-10 to I-75N Ramp?

The structure is 192 ft (58.5 m) long with a longest span of 92 ft (28 m) and a deck 28 ft wide.

Who owns I-75 N to M-10 Rmp over M-10 to I-75N Ramp?

It is owned by the State Highway Agency.