Puerto Rico Highway 20

Puerto Rico Highway 20 (PR-20) or Expreso Rafael Martínez Nadal is a short tollway located between the municipalities of Guaynabo and San Juan in Puerto Rico.^[2] With a length of 9.5 km (5.9 mi), it begins at PR-2 interchange in Pueblo Viejo barrio and ends at PR-1 junction in Río barrio.

Highway 20
Ruta 20
Expreso Rafael Martínez Nadal
Route information
Maintained by Metropistas
Length	9.5 km[1] (5.9 mi)
Major junctions
South end	PR-1 in Río
Major intersections	PR-169 in Río PR-199 in Guaynabo barrio-pueblo PR-177 in Frailes PR-21 in Monacillo Urbano–Gobernador Piñero PR-17 in Gobernador Piñero
North end	PR-2 in Pueblo Viejo
Location
Country	United States
Territory	Puerto Rico
Municipalities	Guaynabo, San Juan
Highway system
Roads in Puerto Rico List
← PR-19 → PR-21

Route description

It used to be divided highway with traffic signals, which even turned into a rural road near its south end, but due to the traffic congestion in parallel freeway PR-18, and also in PR-1 and PR-52, it had to be converted and is now 9.5 kilometers long.^[3] It has few exits; the first being to PR-169, a road to the rural area of Guaynabo and part of Aguas Buenas; PR-199 which connects it to PR-1 and PR-52; PR-177 which serves Bayamón and Cupey, and PR-17 (Avenida Jesús T. Piñero). It begins in the Muda sector of PR-1 and ends near San Patricio in Caparra, Guaynabo, at PR-2. It is tolled going north from PR-1, but not in the other direction.

• 
  PR-20 near its northern terminus in Guaynabo
• 
  Traffic on Expreso Rafael Martínez Nadal

Tolls

Location	Toll[4]	Direction	AutoExpreso acceptance	AutoExpreso replenishment (R) lane
Guaynabo	$0.55	Two-way		(northbound only)

Exit list

• 
  PR-20 north at its exit to PR-177 west in Frailes, Guaynabo
• 
  PR-20 south at its exit to Avenida Esmeralda in Frailes, Guaynabo
• 
  PR-199 east at PR-20 interchange between downtown Guaynabo and Frailes

Municipality	Location	km[1]	mi	Exit	Destinations	Notes
Guaynabo	Río	9.5	5.9	—	PR-1 south (Carretera Felipe "La Voz" Rodríguez) – Caguas	Southern terminus of PR-20
		9.1	5.7	—	PR-169 to PR-1 north (Carretera Felipe "La Voz" Rodríguez) – Río Piedras, La Muda, Camarones, Hato Nuevo
	Camarones	6.8– 6.7	4.2– 4.2	6	PR-Avenida David Urbina – Guaynabo
	Frailes–Guaynabo barrio-pueblo line	6.4	4.0	Guaynabo Toll Plaza
	Guaynabo barrio-pueblo	5.4– 5.3	3.4– 3.3	5	PR-199 (Avenida Las Cumbres) – Guaynabo, Bayamón, Río Piedras, Caguas
	Frailes	4.2– 4.1	2.6– 2.5	—	PR-Avenida Esmeralda – Guaynabo
		3.1	1.9	—	PR-177 (Avenida Lomas Verdes) – Bayamón, Caguas
San Juan	Monacillo Urbano–Gobernador Piñero line	2.2	1.4	—	PR-21 (Carretera Roberto Clemente Walker) to PR-19 (Avenida Luis Vigoreaux) – Río Piedras
	Gobernador Piñero	1.6	0.99	—	PR-17 (Avenida Jesús T. Piñero) – San Juan, Puerto Nuevo, Río Piedras
Guaynabo	Pueblo Viejo	0.4	0.25	—	PR-Avenida González Giusti / PR-Avenida San Patricio – Guaynabo
		0.0	0.0	4	PR-2 – Bayamón, Arecibo, San Juan, Santurce, Hato Rey, Río Piedras	Northern terminus of PR-20
1.000 mi = 1.609 km; 1.000 km = 0.621 mi        Tolled

See also

• Puerto Rico portal
• U.S. Roads portal

• Rafael Martínez Nadal