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Pr 378 7.4 Km 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

Pr 378 7.4 Km 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 1958, making it 67 years old at the 2025 inventory.
It carries about 400 vehicles a day (traffic count year 2017).
Its listed owner is the state 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.
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.

Component ratings


Structure	Continuous concrete tee beam
Length	about 98 ft
Location	9 Km North of Guayanilla
NBI structure number	006231
Condition class	Poor

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

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