SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt
FairMiami-Dade County, Florida · 0.9 MI S of Quail Roost D · Structure no. 870398
- Built
- 1972
- 53 years old, rebuilt 2016
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 396 ft
- 4 main spans
- Daily traffic
- 86,000
- 2024 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt is a steel stringer/multi-beam or girder carrying SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt in Miami-Dade County, Florida. It was built in 1972 and reconstructed in 2016, so it is 53 years old, older than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 86,000 vehicles a day, roughly 6% of them trucks, projected to reach 149,210 by 2042. The structure is 396 ft (120.7 m) long and 83 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt built?
It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2016.
What condition is SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt 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 March 2024.
How much traffic does SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt carry?
About 86,000 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt?
The structure is 396 ft (120.7 m) long with a longest span of 150 ft (45.6 m) and a deck 83 ft wide.
Who owns SR821 Heft NB 12.8 over US 1 & Metro-Dade Bus Rt?
It is owned by the State Toll Authority.