Overview

• The collapse was first reported around 7:00 a.m. on August 18 at kilometer 177+600 in Múgica on the federal Quiroga–Tepalcatepec route, prompting an immediate full closure of the Apatzingán–Cuatro Caminos section.
• The Guardia Nacional División de Carreteras measured the damage at about 30 meters long, 3 meters wide and 1.5 meters deep and confirmed no vehicles fell in and no injuries have been reported.
• Local police, Protección Civil and Bomberos cordoned the scene to protect the public and the Guardia Nacional set up a contraflow and provisional diversions while noting there is no official alternate corridor.
• Videos and on-site observations show turbulent water in an irrigation canal beneath the roadway, which authorities say likely accelerated subsurface erosion during the heavy August rains.
• A technical evaluation to assess subsurface conditions and scope of repairs is pending, and officials warn that stabilization and reconstruction could take several days depending on findings and weather; motorists are urged to avoid the area and follow official updates.