US Bridges

M-5 NB Cd over 12 Mile RD

Good

Oakland County, Michigan · I-96 I-696 M-5 Intrchg · Structure no. 000000000008135

Built
1993
32 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
209 ft
2 main spans
Daily traffic
13,500
1992 count
Owner
State
State Highway Agency

About this bridge

M-5 NB Cd over 12 Mile RD is a prestressed concrete stringer/multi-beam or girder carrying M-5 NB Cd over 12 Mile RD in Oakland County, Michigan. It was built in 1993, so it is 32 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,500 vehicles a day, roughly 5% of them trucks, projected to reach 13,500 by 2010. The structure is 209 ft (63.6 m) long and 59 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesM-5 NB Cd
Crosses12 Mile RD
LocationI-96 I-696 M-5 Intrchg
RouteState Highway 5
CountyOakland County
StateMichigan
Coordinates42.49671, -83.44589
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length209 ft (63.6 m)
Longest span104 ft (31.7 m)
Deck width59 ft (18 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (1992)
Projected traffic13,500 by 2010
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M-5 NB Cd over 12 Mile RD built?

It was built in 1993, making it 32 years old in 2025.

What condition is M-5 NB Cd over 12 Mile RD 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 March 2023.

How much traffic does M-5 NB Cd over 12 Mile RD carry?

About 13,500 vehicles per day (1992 count), of which roughly 5% are trucks.

How long is M-5 NB Cd over 12 Mile RD?

The structure is 209 ft (63.6 m) long with a longest span of 104 ft (31.7 m) and a deck 59 ft wide.

Who owns M-5 NB Cd over 12 Mile RD?

It is owned by the State Highway Agency.