SW 120 ST 18.4 over C-100 Canal
GoodMiami-Dade County, Florida · 0.5 Mile West of SR-874 · Structure no. 870737
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Concrete
- Length
- 84 ft
- 3 main spans
- Daily traffic
- 36,500
- 2024 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
SW 120 ST 18.4 over C-100 Canal is a concrete slab carrying SW 120 ST 18.4 over C-100 Canal in Miami-Dade County, Florida. It was built in 1991, 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 36,500 vehicles a day, roughly 14% of them trucks, projected to reach 63,328 by 2042. The structure is 84 ft (25.5 m) long and 107 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SW 120 ST 18.4 over C-100 Canal built?
It was built in 1991, making it 34 years old in 2025.
What condition is SW 120 ST 18.4 over C-100 Canal 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 120 ST 18.4 over C-100 Canal carry?
About 36,500 vehicles per day (2024 count), of which roughly 14% are trucks.
How long is SW 120 ST 18.4 over C-100 Canal?
The structure is 84 ft (25.5 m) long with a longest span of 28 ft (8.5 m) and a deck 107 ft wide.
Who owns SW 120 ST 18.4 over C-100 Canal?
It is owned by the State Toll Authority.