US Bridges

I-75 SB to I-696EB over I-696&RAMPS from I-75 SB

Fair

Oakland County, Michigan · @ I-75 · Structure no. 000000000007978

Built
1971
54 years old, rebuilt 2007
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
408 ft
4 main spans
Daily traffic
17,000
1982 count
Owner
State
State Highway Agency

About this bridge

I-75 SB to I-696EB over I-696&RAMPS from I-75 SB is a steel stringer/multi-beam or girder carrying I-75 SB to I-696EB over I-696&RAMPS from I-75 SB in Oakland County, Michigan. It was built in 1971 and reconstructed in 2007, so it is 54 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 17,000 vehicles a day, roughly 5% of them trucks, projected to reach 17,000 by 1977. The structure is 408 ft (124.4 m) long and 44 ft wide.

Location

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CarriesI-75 SB to I-696EB
CrossesI-696&RAMPS from I-75 SB
Location@ I-75
RouteInterstate 696
CountyOakland County
StateMichigan
Coordinates42.47669, -83.11172
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
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 alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length408 ft (124.4 m)
Longest span122 ft (37.3 m)
Deck width44 ft (13.5 m)
Roadway width39 ft (12 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic17,000 (1982)
Projected traffic17,000 by 1977
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesThird level (interchange)
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 SB to I-696EB over I-696&RAMPS from I-75 SB built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2007.

What condition is I-75 SB to I-696EB over I-696&RAMPS from I-75 SB 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 July 2023.

How much traffic does I-75 SB to I-696EB over I-696&RAMPS from I-75 SB carry?

About 17,000 vehicles per day (1982 count), of which roughly 5% are trucks.

How long is I-75 SB to I-696EB over I-696&RAMPS from I-75 SB?

The structure is 408 ft (124.4 m) long with a longest span of 122 ft (37.3 m) and a deck 44 ft wide.

Who owns I-75 SB to I-696EB over I-696&RAMPS from I-75 SB?

It is owned by the State Highway Agency.