I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R)
FairChatham County, Georgia · In Savannah City Limits · Structure no. 000000005100940
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected August 2024
- Type
- Tee Beam
- Concrete
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 60,800
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R) is a concrete tee beam carrying I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R) in Chatham County, Georgia. It was built in 1966, so it is 59 years old, older than the Georgia average of 47.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 60,800 vehicles a day, roughly 1% of them trucks, projected to reach 69,135 by 2031. The structure is 106 ft (32.3 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R) built?
It was built in 1966, making it 59 years old in 2025.
What condition is I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R) in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R) carry?
About 60,800 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R)?
The structure is 106 ft (32.3 m) long with a longest span of 37 ft (11.3 m) and a deck 52 ft wide.
Who owns I-16 (ebl) - US 17 over SR 421 Ramp D-1 (I-516R)?
It is owned by the State Highway Agency.