SW 18th ST WB over SR-91 Tpk-Drainage Canal
GoodPalm Beach County, Florida · 0.9MI W of Powerline RD · Structure no. 934925
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 460 ft
- 5 main spans
- Daily traffic
- 13,500
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
SW 18th ST WB over SR-91 Tpk-Drainage Canal is a prestressed concrete stringer/multi-beam or girder carrying SW 18th ST WB over SR-91 Tpk-Drainage Canal in Palm Beach County, Florida. It was built in 1990, so it is 35 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 13,500 vehicles a day, roughly 9% of them trucks, projected to reach 23,423 by 2045. The structure is 460 ft (140.2 m) long and 54 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SW 18th ST WB over SR-91 Tpk-Drainage Canal built?
It was built in 1990, making it 35 years old in 2025.
What condition is SW 18th ST WB over SR-91 Tpk-Drainage 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 August 2024.
How much traffic does SW 18th ST WB over SR-91 Tpk-Drainage Canal carry?
About 13,500 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SW 18th ST WB over SR-91 Tpk-Drainage Canal?
The structure is 460 ft (140.2 m) long with a longest span of 94 ft (28.5 m) and a deck 54 ft wide.
Who owns SW 18th ST WB over SR-91 Tpk-Drainage Canal?
It is owned by the County Highway Agency.