Puerto Rico bridge conditions
2,434 inventoried bridges · 344 rated poor · county by county
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 344 of Puerto Rico's 2,434 inventoried bridges are rated in poor condition (14.1%) in the 2025 National Bridge Inventory, as of .
- 414 bridges (17.0%) are rated good and 1,676 (68.9%) fair.
- The national poor rate is about 6.7%; Puerto Rico is above it (see all states ranked).
- The busiest poor-rated bridge in the state is Pr 18 3.35 Km over Ave. Amer Miranda 1.4 Km in San Juan Municipio, carrying about 261,400 vehicles a day.
By the measure that matters most - the most traffic on a poor rating - it is Pr 18 3.35 Km over Ave. Amer Miranda 1.4 Km in San Juan Municipio, built 1967, carrying about 261,400 vehicles a day. That is a repair-priority flag, not a collapse warning: what a poor rating does and does not mean. See the worst bridge in every state.
Good 17.0% · Fair 68.9% · Poor 14.1% of 2,434 bridges
Bridge conditions by county
Sorted by the number of poor-rated bridges. Click any county for its full bridge list.
The 25 busiest poor-rated bridges in Puerto Rico
Frequently asked questions
How many bridges in Puerto Rico are in poor condition?
344 of Puerto Rico's 2,434 inventoried highway bridges are rated in poor condition (14.1%) in the 2025 National Bridge Inventory. 'Poor' is FHWA's classification for a bridge whose deck, superstructure, or substructure is rated 4 or lower on the 0-9 scale; it was formerly called 'structurally deficient'.
Are the poor-rated bridges in Puerto Rico safe to drive on?
A poor rating flags advanced deterioration that needs repair or close monitoring; it does not by itself mean a bridge is unsafe. Bridges judged unsafe are closed or restricted to lighter loads by the owner. Inspections continue on all open bridges, generally at least every 24 months under the National Bridge Inspection Standards.
Source: FHWA National Bridge Inventory, 2025 vintage, reported by the Puerto Rico DOT.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.