US Bridges

M-13 over Tebo Drain

Fair

Bay County, Michigan · 3.8 MI S of Pinconning · Structure no. 000000000000590

Built
1937
88 years old, rebuilt 1951
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
10,813
2007 count
Owner
State
State Highway Agency

About this bridge

M-13 over Tebo Drain is a concrete tee beam carrying M-13 over Tebo Drain in Bay County, Michigan. It was built in 1937 and reconstructed in 1951, so it is 88 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 5 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 10,813 vehicles a day, roughly 5% of them trucks, projected to reach 11,064 by 2018. The structure is 27 ft (8.2 m) long and 80 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesM-13
CrossesTebo Drain
Location3.8 MI S of Pinconning
RouteState Highway 13
Coordinates43.80167, -83.96726
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width80 ft (24.4 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,813 (2007)
Projected traffic11,064 by 2018
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-13 over Tebo Drain built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1951.

What condition is M-13 over Tebo Drain 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 August 2023.

How much traffic does M-13 over Tebo Drain carry?

About 10,813 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is M-13 over Tebo Drain?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 80 ft wide.

Who owns M-13 over Tebo Drain?

It is owned by the State Highway Agency.