Pr-66 over Dirt Road
Río Grande Municipio, Puerto Rico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Pr-66 over Dirt Road in Río Grande Municipio, Puerto Rico, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2013, making it 12 years old at the 2025 inventory.
- It carries about 10,500 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 13 of the 48 inventoried bridges in Río Grande Municipio rated good (27.1%); 7 (14.6%) 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 August 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 → (18.36844, -65.84317)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 78 ft |
| Location | PR-66 Km.17.5 |
| NBI structure number | 029782 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
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.