SW 168th Street over Canal L-31 N
PoorMiami-Dade County, Florida · 130FT. E of SW 197th Ave · Structure no. 874003
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected June 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 825
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
SW 168th Street over Canal L-31 N is a prestressed concrete slab carrying SW 168th Street over Canal L-31 N in Miami-Dade County, Florida. It was built in 1979, so it is 46 years old, older than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 825 vehicles a day, roughly 5% of them trucks, projected to reach 1,317 by 2042. The structure is 50 ft (15.2 m) long and 40 ft wide. If it were closed, the detour would be 5.6 mi (9 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 168th Street over Canal L-31 N built?
It was built in 1979, making it 46 years old in 2025.
What condition is SW 168th Street over Canal L-31 N in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.
How much traffic does SW 168th Street over Canal L-31 N carry?
About 825 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is SW 168th Street over Canal L-31 N?
The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 40 ft wide.
Who owns SW 168th Street over Canal L-31 N?
It is owned by the County Highway Agency.