SW 312th Street over Canal C-103
GoodMiami-Dade County, Florida · 0.1 MI W of SW 157th Ave · Structure no. 874310
- Built
- 1966
- 59 years old, rebuilt 1976
- Condition
- Good
- inspected November 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 55 ft
- 2 main spans
- Daily traffic
- 20,850
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
SW 312th Street over Canal C-103 is a prestressed concrete slab carrying SW 312th Street over Canal C-103 in Miami-Dade County, Florida. It was built in 1966 and reconstructed in 1976, so it is 59 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 20,850 vehicles a day, roughly 3% of them trucks, projected to reach 35,800 by 2042. The structure is 55 ft (16.8 m) long and 74 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SW 312th Street over Canal C-103 built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1976.
What condition is SW 312th Street over Canal C-103 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 November 2023.
How much traffic does SW 312th Street over Canal C-103 carry?
About 20,850 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is SW 312th Street over Canal C-103?
The structure is 55 ft (16.8 m) long with a longest span of 28 ft (8.4 m) and a deck 74 ft wide.
Who owns SW 312th Street over Canal C-103?
It is owned by the County Highway Agency.