PR 18
PR 18 in North Plaza Las Americas, San Juan Municipio County, Puerto Rico received a condition grade of B (61/100). Built in 1972, the bridge carries 184K vehicles daily on PR 18 over Kalaf Street.
PR 18 carries a B on the BridgeSafety Condition Score with 61/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1972 and is now 54 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. PR 18 carries an average daily traffic count of 183,900 vehicles, with 9 lane(s) crossing Kalaf Street. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
PR 18 is a 54-year-old bridge located North Plaza Las Americas in San Juan Municipio County, Puerto Rico. The bridge carries PR 18 over Kalaf Street with 9 traffic lanes, handling approximately 184K vehicles per day. Built in 1972 and reconstructed in 1983, the structure spans 47.5 meters.
The bridge received a Condition Grade of B (61/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 5/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
PR 18 has a Condition Score of 61/100 (Grade B). Its deck is rated 6/9, superstructure 5/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
PR 18 was built in 1972 and reconstructed in 1983, making it 54 years old. The average bridge age in the United States is 48 years.
PR 18 carries approximately 184K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 47.5 meters long and located on PR 18 in North Plaza Las Americas, San Juan Municipio County, Puerto Rico.
No, PR 18 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
PR 18 is located North Plaza Las Americas in San Juan Municipio County, Puerto Rico. The bridge carries PR 18 over Kalaf Street. Its coordinates are 18.425978, -66.073067. It is maintained by State Highway Agency.
PR 18 carries PR 18 over Kalaf Street. The bridge is 47.5 meters long and was built in 1972, with reconstruction in 1983.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.