PR 52 NORTHBOUND
PR 52 NORTHBOUND in 2.1 MI S W Of Rio Piedras, San Juan Municipio County, Puerto Rico received a condition grade of B (70/100). Built in 1979, the bridge carries 153K vehicles daily on PR 52 NORTHBOUND over PR 177.
PR 52 NORTHBOUND carries a B on the BridgeSafety Condition Score with 70/100. 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 1979, making it 47 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. PR 52 NORTHBOUND carries an average daily traffic count of 153,300 vehicles, with 3 lane(s) crossing PR 177. The owning agency is State Toll Authority; 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 52 NORTHBOUND is a 47-year-old bridge located 2.1 MI S W Of Rio Piedras in San Juan Municipio County, Puerto Rico. The bridge carries PR 52 NORTHBOUND over PR 177 with 3 traffic lanes, handling approximately 153K vehicles per day. Built in 1979, the structure spans 62.4 meters.
The bridge received a Condition Grade of B (70/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 6/9 (fair).
This bridge is owned and maintained by State Toll Authority.
Location Map
Frequently Asked Questions
PR 52 NORTHBOUND has a Condition Score of 70/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
PR 52 NORTHBOUND was built in 1979, making it 47 years old. The average bridge age in the United States is 48 years.
PR 52 NORTHBOUND carries approximately 153K vehicles per day (average daily traffic). The bridge has 3 traffic lanes. It is 62.4 meters long and located on PR 52 NORTHBOUND in 2.1 MI S W Of Rio Piedras, San Juan Municipio County, Puerto Rico.
No, PR 52 NORTHBOUND 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 52 NORTHBOUND is located 2.1 MI S W Of Rio Piedras in San Juan Municipio County, Puerto Rico. The bridge carries PR 52 NORTHBOUND over PR 177. Its coordinates are 18.370858, -66.069975. It is maintained by State Toll Authority.
PR 52 NORTHBOUND carries PR 52 NORTHBOUND over PR 177. The bridge is 62.4 meters long and was built in 1979.
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.