Overview

• The collapse at Carrodilla between Rawson and Juan José Paso closed the northbound lanes of Route 40, with traffic funneled to a short east‑side bypass and shoulder that produced kilometer‑long queues.
• Authorities attribute the failure to a ruptured cloacal collector beneath the roadway, with officials noting aging 1970s pipe in the affected segment and prior warnings from Vialidad Nacional about the sector.
• Initial estimates put the northbound repair at at least five days, though a municipal engineer later said two to three days with a target of Friday, after which crews will intervene on the southbound side.
• Aguas Luján, traffic officers and municipal teams are installing a 500 mm steel sleeve to protect the sewer line, running a temporary sewage bypass with pumps, and rebuilding the pavement in stages.
• Drivers are urged to avoid the area or use Terrada, Vieytes, Cervantes, San Martín or the Corredor del Oeste; separately in San Luis Río Colorado a half‑meter road hole was filled and soil studies are planned after tire damage to vehicles.