Cerrillos River

Cerrillos River (Spanish: Río Cerrillos) is a river in the municipality of Ponce, Puerto Rico. Río Cerrillos has its origin in barrio Anón and runs south until it feeds into Bucaná River. Río Cerrillos is commonly known by the locals as Maragüez River, because most of its course runs through Barrio Maragüez. This river is one of the 14 rivers in the municipality. The river has a discharge of 24,000 cubic feet per second,[6] making it the second most affluent river in the municipality after Río Jacaguas.

Cerrillos River
Río Maragüez
Cerrillos River near the Lake Cerrillos Dam
EtymologyBarrio Cerrillos
Native nameRío Cerrillos
Location
CommonwealthPuerto Rico
MunicipalityPonce
Physical characteristics
Source 
 • locationBarrio Anón
 • elevation1,200 feet (370 m)[1]
Mouth 
 • location
Río Bucaná
 • elevation
69 feet (21 m)[2]
Length18.5 miles (29.8 km)[3]
Basin size17.80 sq mi (46.1 km2)[4]
Discharge 
 • average24,000 cu ft/s (680 m3/s)[5]
Basin features
ProgressionAnón
Maraguez
Cerrillos
River systemRío Bucaná
Tributaries 
 • leftRío Bayagán
Quebrada Ausubo
Río San Patricio
 • rightRío Prieto
Map showing the location of Río Cerrillos among the other rivers in the municipality. The area in pink represents the urban zone of the city

Course

From its origin about 1 kilometer south of the intersection of PR-139 and PR-143, Río Cerrillos runs south for 1.8 kilometers where it is fed by Río Prieto west of PR-139. From this point on, Rio Cerrillos runs parallel to PR-139 for 2 kilometers in barrio Anón before reaching barrio Maraguez. Continuing on its southernly course for about 1.2 kilometers, Río Cerrillos is fed by Río San Patricio. Five kilometers further downstream Río Cerrillos forms Lake Cerrillos, as a result of its dam. Flowing out of the Cerrillos dam, Río Cerrillos runs south for 1 kilometer until it enters barrios Machuelo Arriba and barrio Cerrillos, being the boundary between the two barrios. The river continues its southern course parallel to PR-139 for 5 kilometers until it reaches PR-5139. In another kilometer downstream it is fed by Quebrada Ausubo, and another kilometer further south it is fed by Río Bayagán. At this point it feeds into Río Bucaná where it terminates.[7][8]

The following table summarizes the course of Río Cerrillos in terms of roads crossed. Roads are listed as the river flows from its origin in the mountains of Barrio Anón, north of the city of Ponce, to its merging with Río Bayagan in Barrio Machuelo Arriba to form Río Bucaná (N/A = Data not available):

No.BarrioRoadRoad's
km marker		NBI ID[9]Bridge name
(if any)		Direction
(of bridge traffic)		CoordinatesNotes
1MaragüezPR-13910.522051UnnamedBoth18°6′18.3954″N 66°35′16.1874″W1.6 km N of entrance to Area Recreativa del Lago Cerrillos y Atracadero, Barrio Maragüez
2Machuelo ArribaPR-51392.529131UnnamedBoth18°3′34.9554″N 66°35′10.464″W0.5 km E of INT of PR-139, PR-5139, and PR-139R (aka, Ave. Principal)
3Machuelo ArribaCamino Sector Wachinnot marked28741UnnamedBoth18°3′30.1674″N 66°35′2.4″W0.1 km S of PR-5139 and Cam. Sector Wachin; Off PR-5139 km 2.0
 

Cerrillos Lake and Dam

Cerrillos is the feeder river for Lake Cerrillos Dam in Barrio Maragüez, in the municipality of Ponce. The lake is an artificial reservoir holding 47,900 acre-feet (59,100,000 m3) of water. The dam that made the lake possible was completed in 1992. The lake is surrounded by the Cerrillos State Forest north of the dam. The area immediately south of the dam is a park, the Luis A. Wito Morales Park.

See also

References
  1. Maptest. Archived 18 February 2010 at the Wayback Machine Government of the Commonwealth of Puerto Rico. General Purpose Population Data, Census 2000. Unidad de Sistemas de Información Geográfica, Área de Tecnología de Información Gubernamental, Oficina de Gerencia y Presupuesto. Gobierno de Puerto Rico. Retrieved 24 October 2011.
  2. Maptest. Archived 18 February 2010 at the Wayback Machine Government of the Commonwealth of Puerto Rico. General Purpose Population Data, Census 2000. Unidad de Sistemas de Información Geográfica, Área de Tecnología de Información Gubernamental, Oficina de Gerencia y Presupuesto. Gobierno de Puerto Rico. Retrieved 24 October 2011.
  3. Projecto Salon Hogar (Estudios Sociales, Puerto Rico, Ponce, Hidrografia). Retrieved 8 August 2009.
  4. Ferdinand Quiñones and Karl G. Johnson. The Floods of May 17–18, 1985 and October 6–7, 1985 in Puerto Rico. U.S. Geological Survey. Open File Report 87-123. Prepared in Conjunction with the Puerto Rico Department of Natural Resources, Puerto Rico Environmental Quality Board, and the Puerto Rico Highway Authority. San Juan, Puerto Rico. 1987. Page 15.
  5. Ferdinand Quiñones and Karl G. Johnson. The Floods of May 17–18, 1985 and October 6–7, 1985 in Puerto Rico. U.S. Geological Survey. Open File Report 87-123. Prepared in Conjunction with the Puerto Rico Department of Natural Resources, Puerto Rico Environmental Quality Board, and the Puerto Rico Highway Authority. San Juan, Puerto Rico. 1987. Page 15.
  6. Ferdinand Quiñones and Karl G. Johnson. The Floods of May 17–18, 1985 and October 6–7, 1985 in Puerto Rico. U.S. Geological Survey. Open File Report 87-123. Prepared in Conjunction with the Puerto Rico Department of Natural Resources, Puerto Rico Environmental Quality Board, and the Puerto Rico Highway Authority. San Juan, Puerto Rico. 1987. Page 15.
  7. Salon Hogar.com-Ponce, Hidrografia Retrieved 18 November 2011.
  8. Maptest. Archived February 18, 2010, at the Wayback Machine Government of the Commonwealth of Puerto Rico. General Purpose Population Data, Census 2000. Unidad de Sistemas de Información Geográfica, Área de Tecnología de Información Gubernamental, Oficina de Gerencia y Presupuesto. Gobierno de Puerto Rico. Retrieved 18 November 2011.
  9. National Bridge Inventory Data: Puerto Rico, Ponce. James Baughn. BridgeReports.com 2018. Accessed 26 November 2018.
  10. U.S. Geological Survey Geographic Names Information System: Río Cerrillos
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