Pr 186 Km 19.9 over Sonadora Creek
Río Grande Municipio, Puerto Rico · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Pr 186 Km 19.9 over Sonadora Creek in Río Grande 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 1939 and reconstructed in 1960, making it 86 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 7 of the 48 inventoried bridges in Río Grande Municipio rated poor (14.6%); 7 (14.6%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: superstructure 5 to 4.
- Status change: reopened since 2024, when it was closed.
- Its most recent inspection on record is dated February 2024, on a 12-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 → (18.3235, -65.81993)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 5 | 4 | Poor condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 99 ft |
| Location | 5 Km South of Rio Grande |
| NBI structure number | 004491 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 12 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 Río Grande Municipio
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Pr 3 over Espiritu Santo River | 1976 | 48,100 | Fair |
| Pr 3 over Juan Gonzalez Creek | 1976 | 48,100 | Fair |
| Pr 3 25.5 Km over Grande River | 1976 | 47,900 | Fair |
| Pr 3 over Dirt Road | 1978 | 37,000 | Fair |
| Pr 3 30.7 Km over Cattle Pass | 1978 | 37,000 | Fair |
| Pr 3 21.45 Km over Angela Creek | 1956 | 36,700 | Fair |
All bridges nearby: Río Grande Municipio, PR bridge conditions · every bridge in Río Grande Municipio · Puerto Rico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.