US Bridges

Columbiaville Road over South Br. Flint River

Good

Lapeer County, Michigan · Sec. 25-36 Marathon Twp. · Structure no. 000000000005376

Built
1996
29 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
135 ft
3 main spans
Daily traffic
2,245
2022 count
Owner
County
County Highway Agency

About this bridge

Columbiaville Road over South Br. Flint River is a prestressed concrete tee beam carrying Columbiaville Road over South Br. Flint River in Lapeer County, Michigan. It was built in 1996, so it is 29 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 2,245 vehicles a day, projected to reach 3,336 by 2042. The structure is 135 ft (41.1 m) long and 43 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesColumbiaville Road
CrossesSouth Br. Flint River
LocationSec. 25-36 Marathon Twp.
RouteCounty Highway 4464
Coordinates43.15978, -83.35092
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span45 ft (13.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,245 (2022)
Projected traffic3,336 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Columbiaville Road over South Br. Flint River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Columbiaville Road over South Br. 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 July 2023.

How much traffic does Columbiaville Road over South Br. Flint River carry?

About 2,245 vehicles per day (2022 count).

How long is Columbiaville Road over South Br. Flint River?

The structure is 135 ft (41.1 m) long with a longest span of 45 ft (13.7 m) and a deck 43 ft wide.

Who owns Columbiaville Road over South Br. Flint River?

It is owned by the County Highway Agency.