US Bridges

Oak Road over Flint River

Good

Genesee County, Michigan · 1200 Ft North of Carr RD · Structure no. 000000000002806

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
170 ft
2 main spans
Daily traffic
368
2009 count
Owner
County
County Highway Agency

About this bridge

Oak Road over Flint River is a prestressed concrete box beam or girders - multiple carrying Oak Road over Flint River in Genesee County, Michigan. It was built in 2007, so it is 18 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 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 368 vehicles a day, roughly 2% of them trucks, projected to reach 665 by 2029. The structure is 170 ft (51.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesOak Road
CrossesFlint River
Location1200 Ft North of Carr RD
RouteCounty Highway 0
Coordinates43.11866, -83.49921
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating48.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length170 ft (51.9 m)
Longest span82 ft (24.9 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic368 (2009)
Projected traffic665 by 2029
Trucks2%
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 Oak Road over Flint River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Oak Road over Flint 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 November 2024.

How much traffic does Oak Road over Flint River carry?

About 368 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Oak Road over Flint River?

The structure is 170 ft (51.9 m) long with a longest span of 82 ft (24.9 m) and a deck 31 ft wide.

Who owns Oak Road over Flint River?

It is owned by the County Highway Agency.