Puerto Rico Highway 172

Puerto Rico Highway 172 (PR-172) is a secondary highway that connects Caguas, Puerto Rico at PR-1 to downtown Cidra, Puerto Rico and continues its way to its end at Puerto Rico Road 156 in Comerio, Puerto Rico. It is a two-lane per direction road from Caguas to its border point to Cidra and rural all the way to Comerío.[3][4]

Highway 172
Route information
Maintained by Puerto Rico DTPW
Length28.3 km[1] (17.6 mi)
Existed1953[2]–present
Major junctions
West end PR-156 in Naranjo
 
East end PR-1 in Caguas barrio-pueblo
Location
MunicipalitiesComerío, Cidra, Caguas
Highway system
← PR-171→ PR-173

Dangerous highway

Puerto Rico Highway 172 has about 4 kilometers going uphill. One side of the road is extremely close to the blasted mountain (See Blasting), meaning that landslides would fall in the right lane of the direction close to it; the other side is near a precipice, with barriers that are not safe. The two directions are not divided, and cars can easily collide head-on. Several people have died on this highway, including cars which have been hit by heavy-weight trucks coming down the hill, with brakes that malfunction or in the case of not having enough time to stop. A death occurred on August 16, 2014. There is one emergency ramp which was built to provide safety for the lane going down the mountain.

Rural road in Cidra

Similar to other highways in Puerto Rico which become rural after entering another town from the town of origin, PR-172 becomes rural and enters downtown Cidra before continuing to its end at PR-156 in Comerío. It is mainly flat, and there are no precipices found on the rest of the highway.

Major intersections
MunicipalityLocationkm[1]miDestinationsNotes
ComeríoNaranjo0.00.0 PR-156 – Comerío, Aguas BuenasWestern terminus of PR-172
Vega Redonda3.6–
3.7		2.2–
2.3		 PR-791 – Cejas
5.43.4 PR-7774 west – Comerío
CidraRío Abajo9.45.8 PR-7775 – Rabanal
Río Abajo–Ceiba–
Rabanal tripoint		11.57.1 PR-7733 east (Avenida de la Eterna Primavera) – Aibonito, Cayey
Cidra barrio-pueblo12.27.6 PR-173 south (Calle José Gautier Benítez) – AibonitoWestern terminus of PR-173 concurrency; one-way street
12.37.6 PR-173 north (Calle Román Baldorioty de Castro) – Aguas BuenasEastern terminus of PR-173 concurrency; one-way street; northbound access via Calle José Gautier Benítez or Calle Santiago R. Palmer
12.4–
12.5		7.7–
7.8		 PR-171 (Calle Luis Muñoz Rivera) / PR-734 south (Calle José de Diego) – CayeyOne-way streets; PR-734 access via Calle Miguel Planellas or Calle Vicente Muñoz Barrios
Bayamón–Arenas line13.68.5 PR-7733 west (Avenida de la Eterna Primavera) – Cayey, Aibonito
13.98.6 PR-787 – Las Cruces
CaguasCañaboncito20.913.0 PR-785 – Hormigas
22.213.8 PR-784 – Cañaboncito
Turabo–Cañaboncito line26.416.4 PR-7784 – Caguas
27.517.1 PR-52 (Autopista Luis A. Ferré) – San Juan, PoncePR-52 exit 21; diamond interchange
27.717.2 PR-32 north (Avenida Luis Muñoz Marín) – Caguas
Caguas barrio-pueblo28.317.6 PR-1 (Avenida José Gautier Benítez) – Caguas, CayeyEastern terminus of PR-172
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

    See also

    References
    1. Google (10 March 2020). "PR-172" (Map). Google Maps. Google. Retrieved 10 March 2020.
    2. "Comerío, Memoria Núm. 41" (PDF). Puerto Rico Planning Board (in Spanish). 1955. Retrieved 4 August 2020.
    3. National Geographic Maps (2011). Puerto Rico (Map). 1:125,000. Adventure Map. Evergreen, CO: National Geographic Maps. ISBN 978-1566955188. OCLC 756511572.
    4. "Tránsito Promedio Diario (AADT)". Transit Data (Datos de Transito) (in Spanish). DTOP PR. p. 90.


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