SR821 SB Heft 18.4 over SW 120 ST
GoodMiami-Dade County, Florida · 1.0 Mi. S of Killian Pkwy · Structure no. 870734
- Built
- 1991
- 34 years old, rebuilt 2019
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 187 ft
- 2 main spans
- Daily traffic
- 63,450
- 2024 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
SR821 SB Heft 18.4 over SW 120 ST is a prestressed concrete stringer/multi-beam or girder carrying SR821 SB Heft 18.4 over SW 120 ST in Miami-Dade County, Florida. It was built in 1991 and reconstructed in 2019, so it is 34 years old, younger than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 63,450 vehicles a day, roughly 6% of them trucks, projected to reach 110,086 by 2042. The structure is 187 ft (57 m) long and 73 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR821 SB Heft 18.4 over SW 120 ST built?
It was built in 1991, making it 34 years old in 2025. It was reconstructed in 2019.
What condition is SR821 SB Heft 18.4 over SW 120 ST in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.
How much traffic does SR821 SB Heft 18.4 over SW 120 ST carry?
About 63,450 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is SR821 SB Heft 18.4 over SW 120 ST?
The structure is 187 ft (57 m) long with a longest span of 97 ft (29.7 m) and a deck 73 ft wide.
Who owns SR821 SB Heft 18.4 over SW 120 ST?
It is owned by the State Toll Authority.