US Bridges

I-85 Southbound over SR 419 NB (I-985)

Good

Gwinnett County, Georgia · 2.4 MI E of Suwanee · Structure no. 000000013552640

Built
2018
7 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
344 ft
3 main spans
Daily traffic
162,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 Southbound over SR 419 NB (I-985) is a concrete stringer/multi-beam or girder carrying I-85 Southbound over SR 419 NB (I-985) in Gwinnett County, Georgia. It was built in 2018, so it is 7 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 162,000 vehicles a day, roughly 14% of them trucks, projected to reach 61,400 by 2038. The structure is 344 ft (104.9 m) long and 71 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-85 Southbound
CrossesSR 419 NB (I-985)
Location2.4 MI E of Suwanee
RouteInterstate 85
CountyGwinnett County
StateGeorgia
Coordinates34.0456, -84.02938
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length344 ft (104.9 m)
Longest span163 ft (49.7 m)
Deck width71 ft (21.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic162,000 (2024)
Projected traffic61,400 by 2038
Trucks14%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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$45.8 million (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 Southbound over SR 419 NB (I-985) built?

It was built in 2018, making it 7 years old in 2025.

What condition is I-85 Southbound over SR 419 NB (I-985) 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 August 2023.

How much traffic does I-85 Southbound over SR 419 NB (I-985) carry?

About 162,000 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is I-85 Southbound over SR 419 NB (I-985)?

The structure is 344 ft (104.9 m) long with a longest span of 163 ft (49.7 m) and a deck 71 ft wide.

Who owns I-85 Southbound over SR 419 NB (I-985)?

It is owned by the State Highway Agency.