US Bridges

I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps

Good

DeKalb County, Georgia · 2.4 MI E of Chamblee · Structure no. 000000008902720

Built
1986
39 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
1,646 ft
13 main spans
Daily traffic
8,630
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps is a prestressed concrete continuous box beam or girders - single or spread carrying I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps in DeKalb County, Georgia. It was built in 1986, so it is 39 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 8,630 vehicles a day, roughly 1% of them trucks, projected to reach 26,535 by 2031. The structure is 1,646 ft (501.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-85 Sbl on Ramp F
Crosses3 I-85 RMPS-2 I-285 Rmps
Location2.4 MI E of Chamblee
RouteInterstate 85
StateGeorgia
Coordinates33.89316, -84.26067
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 rating50.9 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20 + Mod
Structure length1,646 ft (501.7 m)
Longest span165 ft (50.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,630 (2024)
Projected traffic26,535 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$7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps built?

It was built in 1986, making it 39 years old in 2025.

What condition is I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps 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 on Ramp F over 3 I-85 RMPS-2 I-285 Rmps carry?

About 8,630 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps?

The structure is 1,646 ft (501.7 m) long with a longest span of 165 ft (50.3 m) and a deck 33 ft wide.

Who owns I-85 Sbl on Ramp F over 3 I-85 RMPS-2 I-285 Rmps?

It is owned by the State Highway Agency.