S.W. Bypass Nbl over SR 421 (I-516)
GoodChatham County, Georgia · 1 MI W of Savannah · Structure no. 000000005101770
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 331 ft
- 4 main spans
- Daily traffic
- 6,200
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
S.W. Bypass Nbl over SR 421 (I-516) is a prestressed concrete stringer/multi-beam or girder carrying S.W. Bypass Nbl over SR 421 (I-516) in Chatham County, Georgia. It was built in 1995, so it is 30 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 6,200 vehicles a day, roughly 1% of them trucks, projected to reach 33,218 by 2031. The structure is 331 ft (100.9 m) long and 41 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 S.W. Bypass Nbl over SR 421 (I-516) built?
It was built in 1995, making it 30 years old in 2025.
What condition is S.W. Bypass Nbl over SR 421 (I-516) 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 May 2024.
How much traffic does S.W. Bypass Nbl over SR 421 (I-516) carry?
About 6,200 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is S.W. Bypass Nbl over SR 421 (I-516)?
The structure is 331 ft (100.9 m) long with a longest span of 110 ft (33.5 m) and a deck 41 ft wide.
Who owns S.W. Bypass Nbl over SR 421 (I-516)?
It is owned by the State Highway Agency.