US Bridges

Left Turn Struct over M-10

Fair

Oakland County, Michigan · In Southfield · Structure no. 000000000007890

Built
1965
60 years old, rebuilt 2006
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
110 ft
2 main spans
Daily traffic
67,200
1987 count
Owner
State
State Highway Agency

About this bridge

Left Turn Struct over M-10 is a steel stringer/multi-beam or girder carrying Left Turn Struct over M-10 in Oakland County, Michigan. It was built in 1965 and reconstructed in 2006, so it is 60 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 67,200 vehicles a day, roughly 3% of them trucks, projected to reach 67,200 by 2027. The structure is 110 ft (33.6 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLeft Turn Struct
CrossesM-10
LocationIn Southfield
RouteCity Street 0
CountyOakland County
StateMichigan
Coordinates42.453, -83.21303
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment9: Superior to present desirable criteria
Operating rating82.5 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length110 ft (33.6 m)
Longest span54 ft (16.4 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,200 (1987)
Projected traffic67,200 by 2027
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Left Turn Struct over M-10 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2006.

What condition is Left Turn Struct over M-10 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 June 2023.

How much traffic does Left Turn Struct over M-10 carry?

About 67,200 vehicles per day (1987 count), of which roughly 3% are trucks.

How long is Left Turn Struct over M-10?

The structure is 110 ft (33.6 m) long with a longest span of 54 ft (16.4 m) and a deck 23 ft wide.

Who owns Left Turn Struct over M-10?

It is owned by the State Highway Agency.