SR934 EB (870083) over West Biscayne Bay
PoorMiami-Dade County, Florida · W of North Bay Island · Structure no. 870549
- Built
- 1973
- 52 years old
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 510 ft
- 17 main spans
- Daily traffic
- 22,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR934 EB (870083) over West Biscayne Bay is a prestressed concrete slab carrying SR934 EB (870083) over West Biscayne Bay in Miami-Dade County, Florida. It was built in 1973, so it is 52 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 22,500 vehicles a day, roughly 3% of them trucks, projected to reach 39,038 by 2044. The structure is 510 ft (155.4 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR934 EB (870083) over West Biscayne Bay built?
It was built in 1973, making it 52 years old in 2025.
What condition is SR934 EB (870083) over West Biscayne Bay 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 October 2024.
How much traffic does SR934 EB (870083) over West Biscayne Bay carry?
About 22,500 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is SR934 EB (870083) over West Biscayne Bay?
The structure is 510 ft (155.4 m) long with a longest span of 30 ft (9.1 m) and a deck 55 ft wide.
Who owns SR934 EB (870083) over West Biscayne Bay?
It is owned by the State Highway Agency.