US Bridges

Duluth Highway over I-85 2 Ramps

Good

Gwinnett County, Georgia · 2.5 MI E of Duluth · Structure no. 000000013551930

Built
2001
24 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
4 main spans
Daily traffic
18,106
2024 count
Owner
State
State Highway Agency

About this bridge

Duluth Highway over I-85 2 Ramps is a prestressed concrete stringer/multi-beam or girder carrying Duluth Highway over I-85 2 Ramps in Gwinnett County, Georgia. It was built in 2001, so it is 24 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 18,106 vehicles a day, roughly 1% of them trucks, projected to reach 31,305 by 2032. The structure is 420 ft (128 m) long and 151 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDuluth Highway
CrossesI-85 2 Ramps
Location2.5 MI E of Duluth
RouteState Highway 120
StateGeorgia
Coordinates33.9768, -84.08955
Functional classUrban Minor Arterial

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.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.9 US tons
Inventory rating33 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length420 ft (128 m)
Longest span130 ft (39.6 m)
Deck width151 ft (46.1 m)
Roadway width132 ft (40.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,106 (2024)
Projected traffic31,305 by 2032
Trucks1%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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$7.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Duluth Highway over I-85 2 Ramps built?

It was built in 2001, making it 24 years old in 2025.

What condition is Duluth Highway over I-85 2 Ramps 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 2023.

How much traffic does Duluth Highway over I-85 2 Ramps carry?

About 18,106 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Duluth Highway over I-85 2 Ramps?

The structure is 420 ft (128 m) long with a longest span of 130 ft (39.6 m) and a deck 151 ft wide.

Who owns Duluth Highway over I-85 2 Ramps?

It is owned by the State Highway Agency.