Rmp I-85N to I-285 over I-85- I-285- 4 Ramps
GoodDeKalb County, Georgia · 2.4 MI E of Chamblee · Structure no. 000000008902690
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 1,734 ft
- 9 main spans
- Daily traffic
- 6,805
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rmp I-85N to I-285 over I-85- I-285- 4 Ramps is a prestressed concrete continuous box beam or girders - single or spread carrying Rmp I-85N to I-285 over I-85- I-285- 4 Ramps in DeKalb County, Georgia. It was built in 1985, so it is 40 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 3,303 by 2031. The structure is 1,734 ft (528.5 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rmp I-85N to I-285 over I-85- I-285- 4 Ramps built?
It was built in 1985, making it 40 years old in 2025.
What condition is Rmp I-85N to I-285 over I-85- I-285- 4 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 Rmp I-85N to I-285 over I-85- I-285- 4 Ramps carry?
About 6,805 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is Rmp I-85N to I-285 over I-85- I-285- 4 Ramps?
The structure is 1,734 ft (528.5 m) long with a longest span of 226 ft (68.9 m) and a deck 45 ft wide.
Who owns Rmp I-85N to I-285 over I-85- I-285- 4 Ramps?
It is owned by the State Highway Agency.