PR 861
Carrying PR 861 over LA PLATA RIVER
1 KM SOUTH OF TOA ALTA, Toa Alta, Puerto Rico
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: PR 861
The PR 861 bridge in Toa Alta, Puerto Rico carries PR 861 over LA PLATA RIVER. It was built in 1979, making it 47 years old today. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 118.3 meters (388 feet) end to end. Daily traffic averages 14,400 vehicles, placing it in the heavily-trafficked tier of Puerto Rico bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 20.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How PR 861 compares
Live comparison across Puerto Rico.
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 How the historical reference is calculated.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
- 1979
- Material
- Prestressed Concrete
- Number of Spans
- 4
- Structure Length
- 118.3 m (388 ft)
- Deck Width
- 15.1 m (50 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 14,400 vehicles/day
- Structure Number
- 016571
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
PR 861 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare PR 861 against other structures in Toa Alta and across Puerto Rico. Puerto Rico 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 PR 861?
PR 861 in Toa Alta, Puerto Rico has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is PR 861 inspected?
PR 861'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 14,400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. PR 861 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for PR 861?
PR 861 has an NBI inventory load rating of 20.5 metric tons.
Who is responsible for maintaining PR 861?
PR 861 is owned and maintained by State Highway Agency.
How old is PR 861 and does age affect safety?
PR 861 was built in 1979, making it 47 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.