State Bridge Road over Big Creek Tributary
Good Condition71 years old48,400 vehicles/day
Location
| State | Georgia |
| County | Fulton |
| Location | In Alpharetta @ SR 400 |
| Carries | State Bridge Road |
| Crosses | Big Creek Tributary |
| Coordinates | 34.06868, -84.26994 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 202.9 sq m |
| Main Spans | 2 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 48,400 (2024) |
| Truck Traffic | 1% |
| Lanes On Bridge | 8 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000012100760 |