Off Pr 378 Km 4.8 over Guayanilla River
Guayanilla Municipio, Puerto Rico · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Off Pr 378 Km 4.8 over Guayanilla River in Guayanilla Municipio, Puerto Rico, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1979, making it 46 years old at the 2025 inventory.
- It carries about 150 vehicles a day (traffic count year 2005).
- Its listed owner is a city or municipal highway agency.
- It is one of 8 of the 36 inventoried bridges in Guayanilla Municipio rated poor (22.2%); 8 (22.2%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2025, on a 6-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (18.08158, -66.79636)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 55 ft |
| Location | 40 Mt Off PR378 at Km 4.8 |
| NBI structure number | 016261 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | March 2025 |
| Inspection interval (item 91) | 6 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Puerto Rico department of transportation.
Busiest bridges in Guayanilla Municipio
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Pr 2 over Waterway | 1970 | 36,900 | Fair |
| Pr 2 over Pr 377 | 2003 | 36,900 | Fair |
| Pr 2 Esbd Km 204.4 over Guayanilla River L Road | 1970 | 18,450 | Poor |
| Pr 2 Westbound over Guayanilla River L Road | 1970 | 18,450 | Fair |
| Pr 2 Eastbound over Waterway | 1968 | 16,650 | Fair |
| Pr 2 Wbd Km 209.1 over Waterway | 1968 | 16,650 | Fair |
All bridges nearby: Guayanilla Municipio, PR bridge conditions · every bridge in Guayanilla Municipio · Puerto Rico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.