FHWA NBI 2024 Inspection record Public-domain dataset

TROON DR

Carrying TROON DR over ATLANTIS WATERWAY

150FT S OF N CNTRY CLBDR, Palm Beach, Florida

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
27 t Inventory load rating

Bridge Snapshot: TROON DR

The TROON DR bridge in Palm Beach, Florida carries TROON DR over ATLANTIS WATERWAY. It was built in 1962, making it 64 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 14.3 meters (47 feet) end to end. Daily traffic averages 1,040 vehicles, placing it in the moderately-trafficked tier of Florida bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. 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 27.4 metric tons.

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

How TROON DR compares

▼ 11.5
Load rating vs Florida average (38.9 t)
Bottom 20%
Lower load rating than 80% of Florida bridges
610
Bridges in Palm Beach · 2 in Poor condition
TROON DR 27.4 t
Florida average 38.9 t

Live comparison across Florida.

Historical Sufficiency Rating

PlainBridge-computed
84.0 / 100 - historical 80–100 band
Structural adequacy /55
51.4
Serviceability /30
20.9
Essentiality /15
14.7
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
27.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1962
Material
Concrete
Number of Spans
3
Structure Length
14.3 m (47 ft)
Deck Width
11.3 m (37 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,040 vehicles/day
Structure Number
935002

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether TROON DR 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 TROON DR 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 TROON DR?

TROON DR in Palm Beach, Florida has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is TROON DR inspected?

TROON DR'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 1,040 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. TROON DR 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 TROON DR?

TROON DR has an NBI inventory load rating of 27.4 metric tons.

Who is responsible for maintaining TROON DR?

TROON DR is owned and maintained by City/Municipal Highway Agency.

How old is TROON DR and does age affect safety?

TROON DR was built in 1962, making it 64 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.