US Bridges

I-85 over Flint River Trib

Good

Fulton County, Georgia · In College Park · Structure no. 000000012105960

Built
1979
46 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
148,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 over Flint River Trib is a concrete culvert carrying I-85 over Flint River Trib in Fulton County, Georgia. It was built in 1979, so it is 46 years old, younger than the Georgia average of 47.5 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 148,000 vehicles a day, roughly 1% of them trucks, projected to reach 191,880 by 2032. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI-85
CrossesFlint River Trib
LocationIn College Park
RouteInterstate 85
StateGeorgia
Coordinates33.65253, -84.43873
Functional classUrban Principal Arterial - Interstate

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.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic148,000 (2024)
Projected traffic191,880 by 2032
Trucks1%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I-85 over Flint River Trib built?

It was built in 1979, making it 46 years old in 2025.

What condition is I-85 over Flint River Trib 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 December 2023.

How much traffic does I-85 over Flint River Trib carry?

About 148,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-85 over Flint River Trib?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m).

Who owns I-85 over Flint River Trib?

It is owned by the State Highway Agency.