SR 120 Wbl over Big Creek
FairFulton County, Georgia · In Alpharetta · Structure no. 000000012100770
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 190 ft
- 5 main spans
- Daily traffic
- 3,960
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 120 Wbl over Big Creek is a prestressed concrete box beam or girders - multiple carrying SR 120 Wbl over Big Creek in Fulton County, Georgia. It was built in 1979, so it is 46 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 3,960 vehicles a day, roughly 1% of them trucks, projected to reach 80,160 by 2031. The structure is 190 ft (57.9 m) long and 48 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 120 Wbl over Big Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is SR 120 Wbl over Big 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 September 2023.
How much traffic does SR 120 Wbl over Big Creek carry?
About 3,960 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is SR 120 Wbl over Big Creek?
The structure is 190 ft (57.9 m) long with a longest span of 38 ft (11.6 m) and a deck 48 ft wide.
Who owns SR 120 Wbl over Big Creek?
It is owned by the State Highway Agency.