Pr-4494 over Depression
Isabela Municipio, Puerto Rico · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Pr-4494 over Depression in Isabela Municipio, Puerto Rico, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory 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 3 of the 5 inventoried bridges in Isabela Municipio rated fair (60.0%); 1 (20.0%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (18.47417, -67.02311)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 331 ft |
| Location | 2.94 K.m. S. of Isabela |
| NBI structure number | 028441 |
| Condition class | Fair |
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 Waterway | 2009 | 600 | Good |
| 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.