US Bridges

Sebewaing Road over Columbia Drain

Fair

Huron County, Michigan · Sec. 11-14 Sebewaing Twp. · Structure no. 000000000003515

Built
1990
35 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
77 ft
2 main spans
Daily traffic
2,100
2009 count
Owner
County
County Highway Agency

About this bridge

Sebewaing Road over Columbia Drain is a prestressed concrete tee beam carrying Sebewaing Road over Columbia Drain in Huron County, Michigan. It was built in 1990, so it is 35 years old, younger 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 2,100 vehicles a day, roughly 9% of them trucks, projected to reach 3,790 by 2029. The structure is 77 ft (23.5 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSebewaing Road
CrossesColumbia Drain
LocationSec. 11-14 Sebewaing Twp.
RouteCounty Highway 3218
CountyHuron County
StateMichigan
Coordinates43.727, -83.39255
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span37 ft (11.2 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2009)
Projected traffic3,790 by 2029
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sebewaing Road over Columbia Drain built?

It was built in 1990, making it 35 years old in 2025.

What condition is Sebewaing Road over Columbia 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 October 2023.

How much traffic does Sebewaing Road over Columbia Drain carry?

About 2,100 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is Sebewaing Road over Columbia Drain?

The structure is 77 ft (23.5 m) long with a longest span of 37 ft (11.2 m) and a deck 43 ft wide.

Who owns Sebewaing Road over Columbia Drain?

It is owned by the County Highway Agency.