US Bridges

I-375 N W Turn RD over I-75 & Ramp

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011812

Built
1963
62 years old, rebuilt 1998
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
511 ft
2 main spans
Daily traffic
12,200
1982 count
Owner
State
State Highway Agency

About this bridge

I-375 N W Turn RD over I-75 & Ramp is a steel stringer/multi-beam or girder carrying I-375 N W Turn RD over I-75 & Ramp in Wayne County, Michigan. It was built in 1963 and reconstructed in 1998, so it is 62 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 12,200 vehicles a day, roughly 3% of them trucks, projected to reach 13,300 by 2026. The structure is 511 ft (155.8 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesI-375 N W Turn RD
CrossesI-75 & Ramp
LocationIn Detroit
RouteInterstate 375
CountyWayne County
StateMichigan
Coordinates42.34468, -83.04398
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+6 approach)
Design loadHS 20 + Mod
Structure length511 ft (155.8 m)
Longest span119 ft (36.2 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,200 (1982)
Projected traffic13,300 by 2026
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-375 N W Turn RD over I-75 & Ramp built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1998.

What condition is I-375 N W Turn RD over I-75 & Ramp 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 2024.

How much traffic does I-375 N W Turn RD over I-75 & Ramp carry?

About 12,200 vehicles per day (1982 count), of which roughly 3% are trucks.

How long is I-375 N W Turn RD over I-75 & Ramp?

The structure is 511 ft (155.8 m) long with a longest span of 119 ft (36.2 m) and a deck 31 ft wide.

Who owns I-375 N W Turn RD over I-75 & Ramp?

It is owned by the State Highway Agency.