|La Plata River|
La Plata River in 2007
|Native name||Río de la Plata|
|⁃ location||Guayama, Puerto Rico|
|Atlantic Ocean, at Dorado|
|Length||46 mi (74 km)|
The La Plata River (Spanish: Río de la Plata) is the longest river in the island of Puerto Rico. It is located in the north coast of the island. It flows from south to north, and drains into the Atlantic Ocean about 11 miles (18 km) west of San Juan. The mouth of the river is a resort area with white sandy beaches.
La Plata has a length of approximately 46 miles with its origin in the municipality of Guayama, Puerto Rico, at an altitude of approximately 2,625 feet (800 meters) above sea level. It crosses the municipalities of Guayama, Cayey, Comerío, Naranjito, Toa Alta, Toa Baja, and Dorado forming two lakes in its path: Carite Lake and La Plata Lake.
There are many crossings of the river. The Arenas Bridge, in Cayey, is one of the most notable. It is a steel bridge built in 1894 and is still in use. It was the longest bridge built in Puerto Rico by the Spanish.:E-12
The river is referenced on the anthem of the town of Toa Baja.
Flood control project
In mid 2018, the United States Army Corps of Engineers announced it would be undertaking a major flood control project of the river basin, with a $500 million budget. By mid 2019, a project by the USACE to mitigate the flooding risk to Toa Baja by The Plata River had not yet begun.
- U.S. Geological Survey Geographic Names Information System:
- Soler-López, Luis R. "Sedimentation Survey of Lago La Plata, Puerto Rico, July 2006". USGS National Geologic Map Database. Retrieved 23 February 2019.
- "La Plata River". britannica. Retrieved 24 February 2019.
- Suarez, Victor. "Inventario de los ríos más importantes de Puerto Rico" (in Spanish). Archived from the original (PDF) on October 23, 2008.
- "Jacksonville District Navigable Waters Lists" (PDF). saj.usace.army.mil. SAJ. Archived (PDF) from the original on 2017-01-26. Retrieved 18 February 2019.
- "Los Ríos" (PDF). Hojas de Nuestro Ambiente. Puerto Rico: DRNA. February 1, 2007. Archived from the original (PDF) on April 1, 2012. Retrieved February 22, 2019.
- "Cayey Bridges". National Bridge Inventory Data. US Dept. of Transportation. Retrieved 20 February 2019.
- Luis F. Pumarada O'Neill (July 31, 1994). National Register of Historic Places Multiple Property Documentation: Historic Bridges of Puerto Rico, c. 1840-1950 (pdf). National Park Service.
- Almukhtar, Sarah; Bloch, Matthew; Fessenden, Ford; Patel, Jugal K. (18 September 2017). "Maps: Hurricane Maria's Path Across Puerto Rico" – via NYTimes.com.
- "USACE: $3.348 billion go toward reducing flood risk in Florida, Puerto Rico and USVI". Caribbean Business. 6 July 2018.
- "Moving Forward from Hurricane Maria in Puerto Rico". Urban Land Magazine. 14 April 2019.
- USGS Hydrologic Unit Map – Caribbean Region (1974)
- Rio de la Plata, Puerto Rico Flood Control Project - U.S. Army Corps of Engineers