SR-A1A over Sebastian Inlet
PoorIndian River County, Florida · 6.2 Miles N of SR-510 · Structure no. 880005
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 1,548 ft
- 19 main spans
- Daily traffic
- 3,214
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR-A1A over Sebastian Inlet is a prestressed concrete stringer/multi-beam or girder carrying SR-A1A over Sebastian Inlet in Indian River County, Florida. It was built in 1964, so it is 61 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 3,214 vehicles a day, roughly 8% of them trucks, projected to reach 5,576 by 2042. The structure is 1,548 ft (471.8 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR-A1A over Sebastian Inlet built?
It was built in 1964, making it 61 years old in 2025.
What condition is SR-A1A over Sebastian Inlet 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 November 2024.
How much traffic does SR-A1A over Sebastian Inlet carry?
About 3,214 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is SR-A1A over Sebastian Inlet?
The structure is 1,548 ft (471.8 m) long with a longest span of 180 ft (54.9 m) and a deck 34 ft wide.
Who owns SR-A1A over Sebastian Inlet?
It is owned by the State Highway Agency.