US Bridges

Filion Road over Philp Drain

Good

Huron County, Michigan · Sec. 18-19 Bloomfield Twp · Structure no. 000000000003524

Built
1969
56 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
640
2009 count
Owner
County
County Highway Agency

About this bridge

Filion Road over Philp Drain is a steel stringer/multi-beam or girder carrying Filion Road over Philp Drain in Huron County, Michigan. It was built in 1969, so it is 56 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 640 vehicles a day, projected to reach 1,155 by 2029. The structure is 57 ft (17.3 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFilion Road
CrossesPhilp Drain
LocationSec. 18-19 Bloomfield Twp
RouteCounty Highway 3258
CountyHuron County
StateMichigan
Coordinates43.89937, -82.8732
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length57 ft (17.3 m)
Longest span54 ft (16.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2009)
Projected traffic1,155 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 Filion Road over Philp Drain built?

It was built in 1969, making it 56 years old in 2025.

What condition is Filion Road over Philp Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Filion Road over Philp Drain carry?

About 640 vehicles per day (2009 count).

How long is Filion Road over Philp Drain?

The structure is 57 ft (17.3 m) long with a longest span of 54 ft (16.4 m) and a deck 32 ft wide.

Who owns Filion Road over Philp Drain?

It is owned by the County Highway Agency.