SW 122nd Avenue over Tamiami Canal C-4
GoodMiami-Dade County, Florida · 75FT. N of US-41 · Structure no. 874213
- Built
- 1971
- 54 years old, rebuilt 1993
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 82 ft
- 3 main spans
- Daily traffic
- 14,566
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
SW 122nd Avenue over Tamiami Canal C-4 is a prestressed concrete slab carrying SW 122nd Avenue over Tamiami Canal C-4 in Miami-Dade County, Florida. It was built in 1971 and reconstructed in 1993, so it is 54 years old, older 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 14,566 vehicles a day, roughly 2% of them trucks, projected to reach 20,808 by 2042. The structure is 82 ft (25.1 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SW 122nd Avenue over Tamiami Canal C-4 built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1993.
What condition is SW 122nd Avenue over Tamiami Canal C-4 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 March 2024.
How much traffic does SW 122nd Avenue over Tamiami Canal C-4 carry?
About 14,566 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is SW 122nd Avenue over Tamiami Canal C-4?
The structure is 82 ft (25.1 m) long with a longest span of 30 ft (9.1 m) and a deck 95 ft wide.
Who owns SW 122nd Avenue over Tamiami Canal C-4?
It is owned by the County Highway Agency.