SR 21 Nbl over Saint Augustine Creek
FairChatham County, Georgia · In Port Wentworth City L · Structure no. 000000005100320
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Concrete
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 31,700
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 21 Nbl over Saint Augustine Creek is a concrete tee beam carrying SR 21 Nbl over Saint Augustine Creek in Chatham County, Georgia. It was built in 1980, so it is 45 years old, younger 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 5 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 31,700 vehicles a day, roughly 1% of them trucks, projected to reach 37,980 by 2031. The structure is 120 ft (36.6 m) long and 44 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 21 Nbl over Saint Augustine Creek built?
It was built in 1980, making it 45 years old in 2025.
What condition is SR 21 Nbl over Saint Augustine Creek 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 July 2024.
How much traffic does SR 21 Nbl over Saint Augustine Creek carry?
About 31,700 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is SR 21 Nbl over Saint Augustine Creek?
The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 44 ft wide.
Who owns SR 21 Nbl over Saint Augustine Creek?
It is owned by the State Highway Agency.