US Bridges

10.5 MI Road over I-75

Good

Oakland County, Michigan · @ City of Royal Oak · Structure no. 000000000008098

Built
2022
3 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
222 ft
2 main spans
Daily traffic
8,530
1974 count
Owner
State
State Highway Agency

About this bridge

10.5 MI Road over I-75 is a prestressed concrete stringer/multi-beam or girder carrying 10.5 MI Road over I-75 in Oakland County, Michigan. It was built in 2022, so it is 3 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,530 vehicles a day, roughly 3% of them trucks, projected to reach 8,530 by 1977. The structure is 222 ft (67.8 m) long and 67 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries10.5 MI Road
CrossesI-75
Location@ City of Royal Oak
RouteCity Street 0
CountyOakland County
StateMichigan
Coordinates42.48329, -83.11354
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length222 ft (67.8 m)
Longest span131 ft (39.9 m)
Deck width67 ft (20.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,530 (1974)
Projected traffic8,530 by 1977
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$189,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 10.5 MI Road over I-75 built?

It was built in 2022, making it 3 years old in 2025.

What condition is 10.5 MI Road over I-75 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does 10.5 MI Road over I-75 carry?

About 8,530 vehicles per day (1974 count), of which roughly 3% are trucks.

How long is 10.5 MI Road over I-75?

The structure is 222 ft (67.8 m) long with a longest span of 131 ft (39.9 m) and a deck 67 ft wide.

Who owns 10.5 MI Road over I-75?

It is owned by the State Highway Agency.