Puerto Rico Highway 901

Puerto Rico Highway 901 is a temporary primary highway in the southeast of Puerto Rico, beginning in PR-3 in Yabucoa, Puerto Rico and ending in PR-760 in Maunabo, Puerto Rico. PR-3, in Yabucoa, enters downtown and continues uphill into the mountains. Therefore, the Department of Transportation designed PR-901 as a primary route (this having the blue-white designation in the boards) while PR-53 is being constructed, because it is more direct to the area of Maunabo than PR-3, as the latter has more curves. It goes parallel to the coastline for several kilometers, but due to the mountains ending up in the very shore, PR-901 is a high road (thus, a dangerous road) and the Caribbean Sea is about several hundreds of feet below the road's level, making PR-901 a scenic route. People have to very extremely cautious in this road. People who go from Humacao to the area of Guayama are recommended to take PR-30, PR-52 and then PR-53 (Salinas-Guayama) than the PR-3/PR-901 route, because it is more safe and takes the same time. This will end when PR-53 is finished.

When PR-53 is finished, PR-901 will become a normal rural road, and PR-53 will become the primary route to Maunabo.