eliascquintana
Inducted into the National Register of Historic Places in 1995, Rio Piedras Bridge is the oldest structure among the historic bridges 
identified in Pumarada-O'Neill's 1989 islandwide bridge study. The oldest extant bridge of the Carretera Central, it is the best-preserved example of a Spanish technology masonry arch 
bridge in Puerto Rico and within the US jurisdiction. (OSM data version: 2017-01-19T15:17:02Z) #mapsme