US Bridges

Seven Mile Road over Tebo Drain

Good

Bay County, Michigan · 100 Ft N of Erickson RD · Structure no. 000000000000703

Built
2020
5 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
1,835
2019 count
Owner
County
County Highway Agency

About this bridge

Seven Mile Road over Tebo Drain is a concrete culvert carrying Seven Mile Road over Tebo Drain in Bay County, Michigan. It was built in 2020, so it is 5 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 1,835 vehicles a day, roughly 7% of them trucks, projected to reach 2,727 by 2039. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSeven Mile Road
CrossesTebo Drain
Location100 Ft N of Erickson RD
RouteCounty Highway 929
Coordinates43.79697, -84.02671
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.5 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,835 (2019)
Projected traffic2,727 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Seven Mile Road over Tebo Drain built?

It was built in 2020, making it 5 years old in 2025.

What condition is Seven Mile Road 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 May 2024.

How much traffic does Seven Mile Road over Tebo Drain carry?

About 1,835 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Seven Mile Road over Tebo Drain?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns Seven Mile Road over Tebo Drain?

It is owned by the County Highway Agency.