FHWA NBI 2024 Inspection record Public-domain dataset

Island Drive

Carrying Island Drive over Canal

0.1 Mile W of US-A1A, Palm Beach, Florida

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
33 t Inventory load rating

Bridge Snapshot: Island Drive

The Island Drive bridge in Palm Beach, Florida carries Island Drive over Canal. It was built in 2010, making it 16 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 12.2 meters (40 feet) end to end. Daily traffic averages 1,000 vehicles, placing it in the lower-traffic tier of Florida bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 33.0 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How Island Drive compares

▼ 5.9
Load rating vs Florida average (38.9 t)
Bottom 36%
Lower load rating than 64% of Florida bridges
610
Bridges in Palm Beach · 2 in Poor condition
Island Drive 33.0 t
Florida average 38.9 t

Live comparison across Florida.

Historical Sufficiency Rating

PlainBridge-computed
85.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
5.7
Special reductions
−5.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
33.0 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
2010
Material
Prestressed Concrete
Number of Spans
2
Structure Length
12.2 m (40 ft)
Deck Width
11.2 m (37 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,000 vehicles/day
Structure Number
936656

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether Island Drive is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare Island Drive against other structures in Palm Beach and across Florida. Florida bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for Island Drive?

Island Drive in Palm Beach, Florida has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is Island Drive inspected?

Island Drive's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 1,000 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. Island Drive is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for Island Drive?

Island Drive has an NBI inventory load rating of 33.0 metric tons.

Who is responsible for maintaining Island Drive?

Island Drive is owned and maintained by City/Municipal Highway Agency.

How old is Island Drive and does age affect safety?

Island Drive was built in 2010, making it 16 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.