Pr-4494 over Waterway
Isabela Municipio, Puerto Rico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Pr-4494 over Waterway in Isabela Municipio, Puerto Rico, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2009, making it 16 years old at the 2025 inventory.
- It carries about 600 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 1 of the 5 inventoried bridges in Isabela Municipio rated good (20.0%); 1 (20.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (18.47778, -67.02389)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 166 ft |
| Location | 2.53 Km. S. of Isabela T. |
| NBI structure number | 028451 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Puerto Rico department of transportation.
Busiest bridges in Isabela Municipio
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Pr 112 3.7 Km over Irrigation Channel | 1982 | 5,700 | Poor |
| Pr-4494 over Depression | 2009 | 600 | Fair |
| Pr-4494 over Waterway | 2009 | 600 | Fair |
| Pr 4466 1.8 Km over Creek | 1960 | 500 | Fair |
All bridges nearby: Isabela Municipio, PR bridge conditions · every bridge in Isabela Municipio · Puerto Rico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.