Sr821 NB Heft 3.1 over SW 312 ST Campbell DR
Good Condition53 years old37,800 vehicles/day
Location
| State | Florida |
| County | Miami-Dade |
| Location | 9.7 Miles South Of Us-1 |
| Carries | Sr821 NB Heft 3.1 |
| Crosses | SW 312 ST Campbell DR |
| Coordinates | 25.47746, -80.43937 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 331.0 ft (100.9 m) |
| Max Span | 89.9 ft (27.4 m) |
| Deck Width | 71.5 ft (21.8 m) |
| Deck Area | 2199.6 sq m |
| Main Spans | 4 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 37,800 (2024) |
| Truck Traffic | 6% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 870390 |