Ramp From Pr 20 NB over Pr 21 Km 1.8 Km 4.8
San Juan Municipio, Puerto Rico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ramp From Pr 20 NB over Pr 21 Km 1.8 Km 4.8 in San Juan 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 1997, making it 28 years old at the 2025 inventory.
- It carries about 40,400 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 42 of the 201 inventoried bridges in San Juan Municipio rated good (20.9%); 21 (10.4%) 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 February 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 → (18.38951, -66.10415)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 93 ft |
| Location | 2.3 Km North of Guaynabo |
| NBI structure number | 023761 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 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 San Juan Municipio
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Pr 18 3.35 Km over Ave. Amer Miranda 1.4 Km | 1967 | 261,400 | Poor |
| Pr 18 2.1 Km over Piedras River | 1967 | 261,000 | Fair |
| Ramp PR18 0.02 Km over Pr 18 NB Pr 22 WB Km 2 | 2007 | 239,000 | Fair |
| Rmp 18 SB 21 WB over Ramp Pr-21 Centro Medico | 2018 | 239,000 | Good |
| Pr-18 over Pr-21 | 2020 | 239,000 | Good |
| Pr 22 0.7 Km over Pr 35 2.4 Km | 1976 | 201,100 | Fair |
All bridges nearby: San Juan Municipio, PR bridge conditions · every bridge in San Juan Municipio · Puerto Rico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.