US Bridges

Sebewaing Road over Little Pigeon River

Fair

Huron County, Michigan · Sec 10-15 Grant Twp · Structure no. 000000000003517

Built
1988
37 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
48 ft
2 main spans
Daily traffic
3,030
2009 count
Owner
County
County Highway Agency

About this bridge

Sebewaing Road over Little Pigeon River is a prestressed concrete tee beam carrying Sebewaing Road over Little Pigeon River in Huron County, Michigan. It was built in 1988, so it is 37 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 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 3,030 vehicles a day, projected to reach 5,470 by 2029. The structure is 48 ft (14.6 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSebewaing Road
CrossesLittle Pigeon River
LocationSec 10-15 Grant Twp
RouteCounty Highway 3218
CountyHuron County
StateMichigan
Coordinates43.73151, -83.17239
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span23 ft (7 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,030 (2009)
Projected traffic5,470 by 2029
Trucks0%
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 Little Pigeon River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Sebewaing Road over Little Pigeon River 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 September 2023.

How much traffic does Sebewaing Road over Little Pigeon River carry?

About 3,030 vehicles per day (2009 count).

How long is Sebewaing Road over Little Pigeon River?

The structure is 48 ft (14.6 m) long with a longest span of 23 ft (7 m) and a deck 36 ft wide.

Who owns Sebewaing Road over Little Pigeon River?

It is owned by the County Highway Agency.