{{Short description|River of Puerto Rico}} {{Use dmy dates|date=February 2018}} {{Infobox river | name = Cerrillos River | native_name = {{Native name|es|Río Cerrillos}} | name_other = Río Maragüez | name_etymology = Barrio Cerrillos | image = Rio Cerrillos.JPG | image_size = 260px | image_caption = Cerrillos River near the Lake Cerrillos Dam | pushpin_map = Puerto Rico | pushpin_map_size = | pushpin_map_caption = Location of mouth | source1_location = Barrio Anón | source1_coordinates = {{Coord|18.1319046|-66.5798949|region:US-PR_type:river_source:gnis|display=inline,title|notes=<ref>{{Gnis|1612463|Río Cerrillos}}</ref>}} | mouth_location = Río Bucaná | progression = Anón<br>Maragüez<br>Cerrillos | subdivision_type1 = Commonwealth | subdivision_name1 = Puerto Rico | subdivision_type2 = Municipality | subdivision_name2 = Ponce | length = {{convert|18.5|mi|km|sp=us}}<ref>[http://www.salonhogar.com/est_soc/pr/pueblos/ponce/index.htm Projecto Salon Hogar (Estudios Sociales, Puerto Rico, Ponce, Hidrografia).] Retrieved 8 August 2009.</ref> | source1_elevation = {{convert|1,200|ft|m|sp=us}}<ref>[http://www.gis.otg.gobierno.pr/maptest Maptest.] {{webarchive |url=https://web.archive.org/web/20100218155723/http://www.gis.otg.gobierno.pr/maptest |date=18 February 2010 }} 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.</ref> | mouth_elevation = {{convert|69|ft|m|sp=us}}<ref>[http://www.gis.otg.gobierno.pr/maptest Maptest.] {{webarchive |url=https://web.archive.org/web/20100218155723/http://www.gis.otg.gobierno.pr/maptest |date=18 February 2010 }} 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.</ref> | discharge1_avg = {{convert|24,000|cuft/s|m3/s|abbr=on}}<ref>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.</ref> | basin_size = {{convert|17.80|sqmi|abbr=on}}<ref>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.</ref> | river_system = Río Bucaná | tributaries_left = Río Bayagán<br>Quebrada Ausubo<br>Río San Patricio | tributaries_right = Río Prieto }}

thumb|right|265px|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

'''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,<ref>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.</ref> making it the second most affluent river in the municipality after Río Jacaguas.

==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 Maragüez. 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.<ref>[http://www.salonhogar.com/est_soc/pr/pueblos/ponce/index.htm Salon Hogar.com-Ponce, Hidrografia] Retrieved 18 November 2011.</ref><ref>[http://www.gis.otg.gobierno.pr/maptest Maptest.] {{webarchive |url=https://web.archive.org/web/20100218155723/http://www.gis.otg.gobierno.pr/maptest |date=February 18, 2010 }} 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.</ref>

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 Bayagán in Barrio Machuelo Arriba to form Río Bucaná (N/A = Data not available):

{| class="wikitable sortable" !No.|| Barrio || Road|| Road's<br />km marker || NBI ID<ref>[https://bridgereports.com/pr/ponce/ ''National Bridge Inventory Data: Puerto Rico, Ponce.''] {{Webarchive|url=https://web.archive.org/web/20190222042023/http://bridgereports.com/pr/ponce/ |date=22 February 2019 }} James Baughn. BridgeReports.com 2018. Accessed 26 November 2018.</ref>|| Bridge name <br/><small>(if any)</small> || Direction <br/><small>(of bridge traffic)</small>|| Coordinates || Notes |- |1||Maragüez || PR-139 || 10.5|| 22051 || Unnamed || Both || {{coord|18|6| 18.3954 |N|66|35| 16.1874|W|type:landmark}} || 1.6&nbsp;km N of entrance to Area Recreativa del Lago Cerrillos y Atracadero, Barrio Maragüez |- |2||Machuelo Arriba || PR-5139 || 2.5 || 29131|| Unnamed || Both || {{coord|18|3| 34.9554 |N|66|35| 10.464 |W|type:landmark}} || 0.5&nbsp;km E of INT of PR-139, PR-5139, and PR-139R (aka, Ave. Principal) |- |3||Machuelo Arriba || Camino Sector Wachin || not marked || 28741 || Unnamed|| Both || {{coord|18|3| 30.1674 |N|66|35| 2.4|W|type:landmark}} || 0.1&nbsp;km S of PR-5139 and Cam. Sector Wachin; Off PR-5139&nbsp;km 2.0 |- |-style="background: #DDDDDD;" class="sortbottom" |&nbsp;|| || || || || || || || |- bgcolor=#ffffff class="sortbottom" |}

==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== * List of rivers of Puerto Rico * List of rivers of Ponce

==References== {{Reflist}}

==External links== {{Commons category}} * USGS Hydrologic Unit Map – Caribbean Region (1974) * [http://www.prfrogui.com/geocities/rios.htm Rivers of Puerto Rico] * [https://pubs.usgs.gov/sim/2005/2818/pdf/sim_I2818.pdf USGS Maps of Municipality of Ponce Rivers, showing Rio Cerrillos and others]

{{DEFAULTSORT:Cerrillos, Rio}} Category:Rivers of Puerto Rico Category:Rivers of Ponce, Puerto Rico