SR91 NB Tpk 158.6 over Canal L-20
GoodSt. Lucie County, Florida · 2.5 MI North of CR-68 · Structure no. 940083
- Built
- 1963
- 62 years old, rebuilt 1992
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 291 ft
- 5 main spans
- Daily traffic
- 18,350
- 2022 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
SR91 NB Tpk 158.6 over Canal L-20 is a prestressed concrete stringer/multi-beam or girder carrying SR91 NB Tpk 158.6 over Canal L-20 in St. Lucie County, Florida. It was built in 1963 and reconstructed in 1992, so it is 62 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 18,350 vehicles a day, roughly 11% of them trucks, projected to reach 31,837 by 2044. The structure is 291 ft (88.7 m) long and 43 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR91 NB Tpk 158.6 over Canal L-20 built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1992.
What condition is SR91 NB Tpk 158.6 over Canal L-20 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 January 2024.
How much traffic does SR91 NB Tpk 158.6 over Canal L-20 carry?
About 18,350 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is SR91 NB Tpk 158.6 over Canal L-20?
The structure is 291 ft (88.7 m) long with a longest span of 66 ft (20.1 m) and a deck 43 ft wide.
Who owns SR91 NB Tpk 158.6 over Canal L-20?
It is owned by the State Toll Authority.