Off Pr 378 Km 3.8 over Guayanilla River

Guayanilla Municipio, Puerto Rico · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Off Pr 378 Km 3.8 over Guayanilla River in Guayanilla Municipio, Puerto Rico, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the substructure, rated 2 (critical condition) on the 0-9 scale.
• It was built in 1977, making it 48 years old at the 2025 inventory.
• It carries about 400 vehicles a day (traffic count year 2017).
• 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 open, no restriction (NBI item 41).
• Its class is unchanged from 2024 (poor), but component ratings moved: substructure 4 to 2, superstructure 2 to 5.
• Its most recent inspection on record is dated November 2024, on a 12-month routine inspection cycle.
• It is coded scour critical (NBI item 113 = 2): scour critical: extensive scour observed, foundations unstable.
• 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 → (18.07428, -66.79392)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the Puerto Rico department of transportation.

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