US Bridges

I-75 NB over Tebo Drain

Good

Bay County, Michigan · 7.0 MI S of Pinconning · Structure no. 000000000000614

Built
1968
57 years old, rebuilt 2011
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
15,522
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Tebo Drain is a prestressed concrete stringer/multi-beam or girder carrying I-75 NB over Tebo Drain in Bay County, Michigan. It was built in 1968 and reconstructed in 2011, so it is 57 years old, older 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 15,522 vehicles a day, roughly 8% of them trucks, projected to reach 16,605 by 2030. The structure is 24 ft (7.3 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75 NB
CrossesTebo Drain
Location7.0 MI S of Pinconning
RouteInterstate 75
Coordinates43.79735, -84.02107
Functional classRural Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span21 ft (6.5 m)
Deck width49 ft (15 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,522 (2007)
Projected traffic16,605 by 2030
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 NB over Tebo Drain built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2011.

What condition is I-75 NB over Tebo Drain 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 August 2023.

How much traffic does I-75 NB over Tebo Drain carry?

About 15,522 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is I-75 NB over Tebo Drain?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.5 m) and a deck 49 ft wide.

Who owns I-75 NB over Tebo Drain?

It is owned by the State Highway Agency.