US Bridges

I-75 NB over Dixie HWY and Ramps

Fair

Oakland County, Michigan · 0.2 MI NW of M-10 · Structure no. 000000000008040

Built
1962
63 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
300 ft
4 main spans
Daily traffic
25,675
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Dixie HWY and Ramps is a steel stringer/multi-beam or girder carrying I-75 NB over Dixie HWY and Ramps in Oakland County, Michigan. It was built in 1962, so it is 63 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 25,675 vehicles a day, roughly 10% of them trucks, projected to reach 26,897 by 2018. The structure is 300 ft (91.3 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 NB
CrossesDixie HWY and Ramps
Location0.2 MI NW of M-10
RouteInterstate 75
CountyOakland County
StateMichigan
Coordinates42.86958, -83.59252
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating93.6 US tons
Inventory rating56.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length300 ft (91.3 m)
Longest span89 ft (27.2 m)
Deck width50 ft (15.1 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,675 (2007)
Projected traffic26,897 by 2018
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 Dixie HWY and Ramps built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-75 NB over Dixie HWY and 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 December 2024.

How much traffic does I-75 NB over Dixie HWY and Ramps carry?

About 25,675 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is I-75 NB over Dixie HWY and Ramps?

The structure is 300 ft (91.3 m) long with a longest span of 89 ft (27.2 m) and a deck 50 ft wide.

Who owns I-75 NB over Dixie HWY and Ramps?

It is owned by the State Highway Agency.