The city’s risk management and Civil Protection department said accumulated trash causes half of all floods in Mexico City. On Friday, June 12, a 250-meter stretch of water formed on Periférico Sur.
The capital’s risk management department directly attributed 50 percent of floods to street trash during the rainy season. It noted that Mexico City sits on the former Lake Texcoco and has no natural water outlet.
NASA’s NISAR satellite monitoring from October 2025 to January 2026 found the ground sinking at least 1.2 centimeters per month due to groundwater extraction. The subsidence was first recorded in 1925 and reached up to 35 centimeters a year in some areas during the 1990s and 2000s.
On Friday, June 12, drainage overflowed on Periférico Sur and Viaducto Tlalpan in colonia Arenal Tepepan, creating 90 centimeters of standing water. Officials activated a pumping station on Anillo Periférico after a vehicle became stranded.
