US Bridges

Davisburg RD over Shiawassee River

Good

Oakland County, Michigan · 0.52 MI E of Dilley RD · Structure no. 000000000014612

Built
2023
2 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
5,600
2018 count
Owner
County
County Highway Agency

About this bridge

Davisburg RD over Shiawassee River is a concrete culvert carrying Davisburg RD over Shiawassee River in Oakland County, Michigan. It was built in 2023, so it is 2 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 5,600 vehicles a day, roughly 5% of them trucks, projected to reach 6,500 by 2040. The structure is 36 ft (11 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesDavisburg RD
CrossesShiawassee River
Location0.52 MI E of Dilley RD
RouteCounty Highway 6368
CountyOakland County
StateMichigan
Coordinates42.7524, -83.5384
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating78.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length36 ft (11 m)
Longest span36 ft (11 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2018)
Projected traffic6,500 by 2040
Trucks5%
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 Davisburg RD over Shiawassee River built?

It was built in 2023, making it 2 years old in 2025.

What condition is Davisburg RD over Shiawassee River 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 April 2024.

How much traffic does Davisburg RD over Shiawassee River carry?

About 5,600 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Davisburg RD over Shiawassee River?

The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m).

Who owns Davisburg RD over Shiawassee River?

It is owned by the County Highway Agency.