US Bridges

Filion Road over E Branch Pinnebog River

Fair

Huron County, Michigan · Sec. 13-24 Chandler Twp. · Structure no. 000000000003522

Built
1923
102 years old, rebuilt 1971
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
34 ft
1 main span
Daily traffic
820
2009 count
Owner
County
County Highway Agency

About this bridge

Filion Road over E Branch Pinnebog River is a concrete tee beam carrying Filion Road over E Branch Pinnebog River in Huron County, Michigan. It was built in 1923 and reconstructed in 1971, so it is 102 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 820 vehicles a day, roughly 3% of them trucks, projected to reach 1,480 by 2029. The structure is 34 ft (10.4 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFilion Road
CrossesE Branch Pinnebog River
LocationSec. 13-24 Chandler Twp.
RouteCounty Highway 3258
CountyHuron County
StateMichigan
Coordinates43.89144, -83.14138
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.4 m)
Longest span33 ft (10.2 m)
Deck width34 ft (10.3 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic820 (2009)
Projected traffic1,480 by 2029
Trucks3%
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 Filion Road over E Branch Pinnebog River built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1971.

What condition is Filion Road over E Branch Pinnebog 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 August 2023.

How much traffic does Filion Road over E Branch Pinnebog River carry?

About 820 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Filion Road over E Branch Pinnebog River?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.2 m) and a deck 34 ft wide.

Who owns Filion Road over E Branch Pinnebog River?

It is owned by the County Highway Agency.