WB SR 70 over Header Canal
GoodSt. Lucie County, Florida · 7.0 Mi. W of Fl Turnpike · Structure no. 940119
- Built
- 1986
- 39 years old, rebuilt 2009
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 119 ft
- 3 main spans
- Daily traffic
- 5,500
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
WB SR 70 over Header Canal is a prestressed concrete stringer/multi-beam or girder carrying WB SR 70 over Header Canal in St. Lucie County, Florida. It was built in 1986 and reconstructed in 2009, so it is 39 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 5,500 vehicles a day, roughly 16% of them trucks, projected to reach 9,542 by 2044. The structure is 119 ft (36.3 m) long and 71 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 | 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 WB SR 70 over Header Canal built?
It was built in 1986, making it 39 years old in 2025. It was reconstructed in 2009.
What condition is WB SR 70 over Header 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 WB SR 70 over Header Canal carry?
About 5,500 vehicles per day (2024 count), of which roughly 16% are trucks.
How long is WB SR 70 over Header Canal?
The structure is 119 ft (36.3 m) long with a longest span of 40 ft (12.1 m) and a deck 71 ft wide.
Who owns WB SR 70 over Header Canal?
It is owned by the State Highway Agency.