RÃÂo Piedras () (Spanish for <nowiki>stones river</nowiki>) is a highly urbanized commercial and residential district in San Juan, the capital municipality of Puerto Rico. Adjacent to the Hato Rey business center and concentrated in the barrios of Pueblo, Universidad, Hato Rey Sur, El Cinco, and Monacillo Urbano, it is about from the Old San Juan historic quarter, Condado and Isla Verde resort areas, and SJU airport. It has been the home of the main campus of the University of Puerto Rico since 1903, earning the popular name of Ciudad Universitaria (college town). The largest health institution in the archipelago, the Centro Médico de Puerto Rico (Puerto Rico Medical Center), is also located within its limits. Named after the river that flows through it, the RÃÂo Piedras (<nowiki>stones river</nowiki>), the district was the downtown center of a former municipality with the same name that was merged into San Juan in 1951.
The district is named RÃÂo Piedras (<nowiki>stones river</nowiki>) after the Piedras River, which is within its territorial limits. RÃÂo Piedras was also the name of the former municipality (1823âÂÂ1950) for which the district was the downtown and historic center before it was merged with the adjacent municipality of San Juan in 1951.
The area where RÃÂo Piedras is located today was previously settled by the TaÃÂno, and archaeological sites have been uncovered nearby in Carolina. The town was founded as El Roble and was officially recognized by Spanish Governor Juan de Rivera in 1714. It was settled on the intersection of the Piedras River and the Juan Méndez Creek (part of the Puerto Nuevo River basin). The town eventually adopted the name of that river, Pueblo de Nuestra Señora del Pilar de RÃÂo Piedras, and was proclaimed a municipality in 1823, when the city hall and plaza (main town square) were built.
During the nineteenth century, most of its territory was used for agricultural and livestock-raising purposes. Sugar cane, cotton and coffee were some of the goods produced during this era at the municipality. A road connecting RÃÂo Piedras to San Juan was built during this time, along with the first church, Iglesia Nuestra Señora del Pilar, at the site of the modern town plaza. The Camino Real, precursor to the Carretera Central, connected RÃÂo Piedras with Caguas and to southern Puerto Rico, was also built before the end of the century. Its location along the Camino Real between the walled city of San Juan and the rest of the island turned RÃÂo Piedras into a commercial hub and junction between the Spanish colonial government and the rest of Puerto Rico.
The University of Puerto Rico was founded in RÃÂo Piedras on May 12, 1903 with funds diverted from the former Escuela Normal Industrial (Normal Industrial School). The University of Puerto Rico, RÃÂo Piedras Campus, today one of the largest universities in Puerto Rico. The university was a central part of the commercial and residential development of RÃÂo Piedras. The University Botanical Gardens are also located in RÃÂo Piedras.
The municipality of RÃÂo Piedras became part of the capital city of San Juan on July 1, 1951, after the approval of Project 177 by the House of Representatives of Puerto Rico. Following the annexation of RÃÂo Piedras, the city of San Juan, quadrupled its former size, becoming the largest city in Puerto Rico. With a population of 143,989 in 1950, RÃÂo Piedras was the most populous municipality in Puerto Rico before its consolidation with San Juan. The last mayor of the municipality of RÃÂo Piedras was ÃÂngeles Méndez de López Corver. The former downtown area of the municipality is today part of the barrio (district) of Pueblo in San Juan, more popularly known as RÃÂo Piedras Antiguo (Old RÃÂo Piedras) and RÃÂo Piedras Pueblo (downtown RÃÂo Piedras), and it still preserves its former city hall, town square or plaza, and its cathedral, Catedral de San Juan Bautista.
In July 1980, it was revealed by then Mayor Hernán Padilla, that Calle De Diego, one of the roads with the greatest commercial movement and traffic congestion in RÃÂo Piedras, would be converted into a Pedestrian Walkway in the following year. Padilla indicated that the construction of the Pedestrian Walkway, which would extend from the street Ferrocarril to Ponce de Leon Avenue, including a portion of Calle del Carmen, would cost around $1.5 million.
On December 5, 1981, the first phase of Paseo De Diego, built by Redondo Construction at a cost of $1,100,000, would be delivered to the Mayor of San Juan before December 18, the date of its official inauguration, four months before the original expected completion time. This would be possible despite the fact that the project had been carried out with the public passing through and shops open. It would have two ornamental fountains, four clocks, attractive light fixtures, and 42 trees that would complement the appearance of Paseo De Diego, which had all the details of a mall, but outdoors. It would officially inaugurate on December 18, of that year.
On November 5, 1983, located on the Paseo de Diego, a 90,000 square foot shopping center Plaza de Diego Mall, would inaugurate with three levels. The first two levels would count with 13 stores, and the third would count with 13 food establishments. It would be developed by Plaza de Diego Shopping Center, Inc., and designed by Huyke, Colón y Asociados.
The flag of RÃÂo Piedras consists of a yellow cloth with a wavy blue stripe. The stripe has small white stones crossing it, and symbolizes the river that gave its name to the former town. The yellow background represents the sun, progress, and the future.
The region is mostly flat due to its location in the Northern Coastal Plains of the island. The highest regions are located at the south, mainly in the Caimito and Cupey barrios. The RÃÂo Piedras (or Piedras River) which gives name to the area crosses the region.
By 1948, RÃÂo Piedras had the following 12 urban barrios:
Buen Consejo, Capetillo, and RÃÂo Piedras Antiguo made up the original urban area of the municipality of RÃÂo Piedras.
The rural zone, 42% of RÃÂo Piedras in 1948, were the following six barrios:
Tourism spots in RÃÂo Piedras include:
RÃÂo Piedras first mayor was Juan de la Cruz in 1814. The last mayor of the municipality of RÃÂo Piedras was ÃÂngeles Méndez de López Corver.
The Puerto Rico Department of Corrections and Rehabilitation operates the Hogar Intermedio para Mujeres in RÃÂo Piedras, which opened in 1996.
RÃÂo Piedras is perhaps more known for being the site of the main campus of the University of Puerto Rico. Located in downtown RÃÂo Piedras, the university has more than 20,000 students enrolled and a faculty of more than 1,000.
Other universities located in what was known as RÃÂo Piedras are the Polytechnic University of Puerto Rico and the Interamerican University of Puerto Rico, Metropolitan Campus.
RÃÂo Piedras also has several public and private schools distributed through several regions. Public education is handled by the Puerto Rico Department of Education.
RÃÂo Piedras is served by the Tren Urbano metro system with stations at the University of Puerto Rico and RÃÂo Piedras in downtown RÃÂo Piedras. Even though these two stations are considered the current stations at RÃÂo Piedras, most of the stops of the train in the municipality of San Juan are located in areas that were part of the municipality of RÃÂo Piedras prior to 1951.
At the heart of RÃÂo Piedras lies the Avenida José de Diego, a one-kilometer pedestrianized street with stores and shops. The RÃÂo Piedras Plaza del Mercado (the old marketplace) is the largest of its kind on the island and features a series of shops that offer goods and services, and it is also popular with students of the university.
Ponce de León Avenue is popular with bookstores and small theaters and with students, faculty, and intellectuals in the community.