Puerto Rico Highway 3
Puerto Rico Highway 3 '' at nearly 100 miles long, is the second-longest highway on Puerto Rico. It connects the San Juan neighborhood of Río Piedras to downtown Salinas indirectly around the eastern coast of the island. Highway 3 ranges from a three lane urban avenue in San Juan to a one lane rural road past Fajardo. While other roads connect San Juan, it runs the coastline of Puerto Rico east of San Juan, beginning in Río Piedras near Santurce and goes to Fajardo where it goes south paralleling the coastline to Humacao and Maunabo. It goes up to a mountain-scenic route and goes west to Salinas, where it meets PR-1.
Route description
San Juan to Río Grande
PR-3 begins at an intersection with PR-1 in San Juan as the three lane 65th [Infantry Regiment (United States)|65th Infantry Regiment] Avenue. Heading east through San Juan, Highway 3 functions as an urban boulevard with both at-grade and grade-separated intersections becoming decidedly suburban in character past the PR-26/66 overpass near downtown Carolina. Recently, PR-66 was opened and it has controlled the high traffic on PR-3.Río Grande to Fajardo
It is a divided highway to Fajardo, and the only main highway connecting Fajardo to Río Grande. In Fajardo, PR-53 begins and PR-3 becomes a one-lane per direction rural road, and keeps that way for the rest of its length, though there are some minor divided segments in Humacao near Junquito, a very small segment near Patagonia and another segment in Arroyo and Guayama for about nearly 10 kilometers.Municipalities served
The following are the municipalities through which PR-3 passes:- San Juan
- Carolina
- Canóvanas
- Loíza
- Río Grande
- Luquillo
- Fajardo
- Ceiba
- Naguabo
- Humacao
- Yabucoa
- Maunabo
- Patillas
- Arroyo
- Guayama
- Salinas