US Bridges

I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps

Good

DeKalb County, Georgia · 2.3 MI E of Chamblee · Structure no. 000000008902730

Built
1987
38 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
1,572 ft
9 main spans
Daily traffic
6,805
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps is a prestressed concrete continuous box beam or girders - single or spread carrying I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps in DeKalb County, Georgia. It was built in 1987, so it is 38 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 6,805 vehicles a day, roughly 1% of them trucks, projected to reach 44,625 by 2031. The structure is 1,572 ft (479.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-85 Sbl Off Ramps
CrossesI-85- I-285- 2 Ramps
Location2.3 MI E of Chamblee
RouteInterstate 85
CountyDeKalb County
StateGeorgia
Coordinates33.89145, -84.2582
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
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 alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20 + Mod
Structure length1,572 ft (479.1 m)
Longest span215 ft (65.5 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic6,805 (2024)
Projected traffic44,625 by 2031
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$9.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-85 Sbl Off Ramps over I-85- I-285- 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 August 2024.

How much traffic does I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps carry?

About 6,805 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps?

The structure is 1,572 ft (479.1 m) long with a longest span of 215 ft (65.5 m) and a deck 45 ft wide.

Who owns I-85 Sbl Off Ramps over I-85- I-285- 2 Ramps?

It is owned by the State Highway Agency.