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Pr 178 0.8 Km over Nigua River

Arroyo Municipio, Puerto Rico · rated Fair in the 2025 National Bridge Inventory

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

Pr 178 0.8 Km over Nigua River in Arroyo Municipio, Puerto Rico, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1988, making it 37 years old at the 2025 inventory.
It carries about 7,500 vehicles a day (traffic count year 2017).
Its listed owner is the state highway agency.
It is one of 10 of the 13 inventoried bridges in Arroyo Municipio rated fair (76.9%); 1 (7.7%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 117 ft
Location	0.8 KM INT PR 3 & PR
NBI structure number	018941
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Pr 3 132.5 Km over Nigua River	1981	27,700	Fair
Pr 3 over Yaurel Creek	2003	19,800	Good
Pr 3 Km 132.0 over Nigua River	2005	17,600	Fair
Pr 54 over Patillas Channel	2000	17,500	Good
Pr 753 over Irrigation Channel	1948	10,300	Fair
Off Pr 178 Km 0.7 over Nigua River	2000	7,500	Fair