Calle Concordia (Concordia Street) is a short but important thoroughfare running northâÂÂsouth through the Mayagüez, Puerto Rico neighborhood of El Seco. The street runs for 0.72 miles and is signed as Puerto Rico Highway 3342 (PR-3342) and begins at the intersection of PR-102 and PR-64 and ends as a dead end at the Yagüez River, just south of Calle San Pablo (San Pablo Street). Calle Concordia also forms the western boundary of the Concordia Public Housing Complex.