LOOP ROAD
Carrying LOOP ROAD over SLOUGH
2.7 MILES FROM PARK BORDE, Collier, Florida
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: LOOP ROAD
The LOOP ROAD bridge in Collier, Florida carries LOOP ROAD over SLOUGH. It was built in 1960, making it 66 years old today. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 5 vehicles, placing it in the lower-traffic tier of Florida bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How LOOP ROAD compares
Live comparison across Florida.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1960
- Material
- Prestressed Concrete
- Number of Spans
- 4
- Structure Length
- 18.3 m (60 ft)
- Deck Width
- 7.8 m (26 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 5 vehicles/day
- Structure Number
- 5120034P0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • 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 fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether LOOP ROAD 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 LOOP ROAD against other structures in Collier 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 LOOP ROAD?
LOOP ROAD in Collier, Florida has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is LOOP ROAD inspected?
LOOP ROAD'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 5 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LOOP ROAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for LOOP ROAD?
LOOP ROAD has an NBI inventory load rating of 24.5 metric tons.
Who is responsible for maintaining LOOP ROAD?
LOOP ROAD is owned and maintained by National Park Service.
How old is LOOP ROAD and does age affect safety?
LOOP ROAD was built in 1960, making it 66 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.
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.