US Bridges

Sebewaing Road over Sebewaing River

Fair

Huron County, Michigan · Sec. 8-17 Sebewaing Twp. · Structure no. 000000000003514

Built
1990
35 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
2,260
2009 count
Owner
County
County Highway Agency

About this bridge

Sebewaing Road over Sebewaing River is a prestressed concrete tee beam carrying Sebewaing Road over Sebewaing River 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 2,260 vehicles a day, roughly 7% of them trucks, projected to reach 4,080 by 2029. The structure is 50 ft (15.2 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSebewaing Road
CrossesSebewaing River
LocationSec. 8-17 Sebewaing Twp.
RouteCounty Highway 3218
CountyHuron County
StateMichigan
Coordinates43.72621, -83.4369
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment7: Better than present minimum criteria
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,260 (2009)
Projected traffic4,080 by 2029
Trucks7%
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 Sebewaing River built?

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

What condition is Sebewaing Road over Sebewaing 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 Sebewaing River carry?

About 2,260 vehicles per day (2009 count), of which roughly 7% are trucks.

How long is Sebewaing Road over Sebewaing River?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 42 ft wide.

Who owns Sebewaing Road over Sebewaing River?

It is owned by the County Highway Agency.