US Bridges

I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb

Good

DeKalb County, Georgia · 2.8 MI E of Chamblee · Structure no. 000000008902740

Built
1987
38 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
525 ft
4 main spans
Daily traffic
6,910
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb is a prestressed concrete continuous box beam or girders - single or spread carrying I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb 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 6,910 vehicles a day, roughly 1% of them trucks, projected to reach 3,303 by 2031. The structure is 525 ft (160 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-85 Sbl Off Ramp
CrossesI-85 Rmp SB to I-285 Ccb
Location2.8 MI E of Chamblee
RouteInterstate 85
CountyDeKalb County
StateGeorgia
Coordinates33.89419, -84.2568
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 rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length525 ft (160 m)
Longest span173 ft (52.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,910 (2024)
Projected traffic3,303 by 2031
Trucks1%
Lanes on structure1
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$2.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb built?

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

What condition is I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb 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 Ramp over I-85 Rmp SB to I-285 Ccb carry?

About 6,910 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb?

The structure is 525 ft (160 m) long with a longest span of 173 ft (52.7 m) and a deck 33 ft wide.

Who owns I-85 Sbl Off Ramp over I-85 Rmp SB to I-285 Ccb?

It is owned by the State Highway Agency.