US Bridges

11 Mile Road over Novi-Lyon Drain

Good

Oakland County, Michigan · Lyon Twp Sec 15/22 · Structure no. 000000000013648

Built
2024
1 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
442
2024 count
Owner
County
County Highway Agency

About this bridge

11 Mile Road over Novi-Lyon Drain is a concrete culvert carrying 11 Mile Road over Novi-Lyon Drain in Oakland County, Michigan. It was built in 2024, so it is 1 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 442 vehicles a day, roughly 5% of them trucks, projected to reach 799 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries11 Mile Road
CrossesNovi-Lyon Drain
LocationLyon Twp Sec 15/22
RouteCounty Highway 0
CountyOakland County
StateMichigan
Coordinates42.47681, -83.60692
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert9 ExcellentNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating63.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length22 ft (6.7 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic442 (2024)
Projected traffic799 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 11 Mile Road over Novi-Lyon Drain built?

It was built in 2024, making it 1 years old in 2025.

What condition is 11 Mile Road over Novi-Lyon 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 January 2025.

How much traffic does 11 Mile Road over Novi-Lyon Drain carry?

About 442 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 11 Mile Road over Novi-Lyon Drain?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.2 m).

Who owns 11 Mile Road over Novi-Lyon Drain?

It is owned by the County Highway Agency.