Route 1 (Paraguay) near). Route 1 (Paraguay) National Route 1 (in Spanish, Ruta Nacional Número 1 "Mcal. Francisco Solano López", or simply Ruta Uno) is one of the most important and one of the first highways in Paraguay, which runs from the capital city, Asunción to Itapua Department's capital, Encarnación. Crossing the departments of Central, Paraguarí, Misiones and Itapua. It starts on Avenida Eusebio Ayala, and ends at the San Roque González de Santa Cruz Bridge, on the Paraná River, traversing . The following table shows the distances traversed by Ruta 1 in each different department, and important cities that it passes by
Geography of Paraguay the river enters Paraguay, the Paraná River flows 800 km to its juncture with the Río Paraguay and then continues southward to the Río de la Plata Estuary at Buenos Aires, Argentina. In general, the Río Paraná is navigable by large ships only up to Encarnación, Paraguay but smaller boats may go somewhat farther. In summer months the river is deep enough to permit vessels with drafts of up to three meters to reach Salto del Guairá, but seasonal and other occasional conditions severely limit the river's navigational value. On the upper course, sudden floods may raise the water level